# Lu Yen-hsun

Lu Yen-hsun (Chinese: 盧彥勳; born 14 August 1983) is a Taiwanese coach and former tennis player, who goes by the nickname Rendy Lu. He won the most titles on the ATP Challenger Tour in tennis history. His favorite surface is hardcourt, though several of his ATP Tour career highlights came on grass, including reaching the quarterfinals of the 2010 Wimbledon Championships.

## Juniors

Lu was an accomplished junior player, reaching as high as No. 3 in the ITF junior singles rankings in February 2001 (and No. 9 in doubles). In his junior career, he compiled a singles win–loss record of 80–37 (63–34 in doubles) and defeated a handful of future ATP stars, including Robin Söderling, Mario Ančić, and Philipp Kohlschreiber.
His result in Junior Grand Slam events are as follows:
* Australian Open: 1R (2001)
* French Open: 1R (2000)
* Wimbledon: 1R (2000)
* US Open: 2R (2000)

## Tennis career

In 2004, Lu became the first player from Taiwan to break into the ATP top 100, thanks to a solid performance in the Challenger Tour in the first half of 2004. He started to participate in many tour-level events. Although he suffered many defeats, his effort yielded some good wins. His most notable win came on grass in the Queen's Club Championships, where he gained his first top-10 win by defeating then world No. 3, Guillermo Coria.
A series of injuries caused his ranking to fall rapidly in 2005. He did not participate in any tournaments after withdrawing in the second round in Ho Chi Minh City.

### 2006–2007

Returning to the circuit, Lu enjoyed a solid performance throughout the season, and a late surge at the end of the season, advancing to semifinals or better in four consecutive Challengers (Rimouski, Busan, Caloundra, and Kawana). He lost in the final of Rimouski to his friend Kristian Pless. Two weeks later, Lu won the Caloundra Challenger, beating Peter Luczak. The following week, he lost in the final to Julien Jeanpierre. Lu's hot streak moved him from No. 140 in the ATP in October to No. 89 at year-end.
In winter 2006, Lu was training with Rainer Schüttler and Janko Tipsarević in Dubai, under Dirk Hordorff. The training seemed to yield good results, as Lu reached the second round at the Australian Open and his first ATP level quarter-final in Memphis in 2007. By defeating Jürgen Melzer in the second round, Lu reached his first ATP level quarter-final, but lost to eventual finalist Andy Roddick. With this strong performance, Lu broke into the top 80 in February.

### 2008

In 2008, Lu did well on the Challenger Tour, taking home titles in Waikoloa, New Delhi and Tashkent, while reaching the finals of three other Challenger events. On the ATP Tour, Lu booked a spot in the quarter-finals in San Jose by defeating Max Mirnyi in the first round and Wayne Odesnik in straight sets in the second round. He then lost to Radek Štěpánek in the quarter-finals in two sets.
Perhaps Lu's best performance during the season came at the Beijing Olympics, representing Chinese Taipei. Lu shocked audiences by defeating then sixth ranked player in the world, Andy Murray, in straight sets in the first round. Lu continued his winning streak at the Olympics by defeating Agustín Calleri of Argentina to advance to the third round (round of 16), but eventually lost to Jürgen Melzer of Austria.

### 2009

At the 2009 Australian Open, Lu advanced to the third round of a Grand Slam tournament for the first time, defeating 10th seeded David Nalbandian in five sets in the second round. He lost to Tommy Robredo in the third round.
Lu, ranked 82, defeated former world No. 1, Lleyton Hewitt, in the first round of the Delray Beach International Tennis Championships. He then lost to Stefan Koubek.
In May 2009, Lu won the $100k Israel Open at Ramat HaSharon, beating German Benjamin Becker, who was forced to retire.
Lu retired in his first-round match against Mathieu Montcourt at Roland Garros, whilst trailing 2–6.
He was defeated by Roger Federer in the first round of Wimbledon in three sets.
In November 2009, Lu won the $100k Flea Market Cup at Chuncheon, beating Dutch player Igor Sijsling.

### 2010

At 2010 Wimbledon, Lu became the first Taiwanese player to reach the quarter-finals of a Grand Slam championship, and the first man from Asia to reach the quarter-finals at a major in 15 years. He made it to the fourth round without dropping a set defeating Horacio Zeballos, Michał Przysiężny, and Florian Mayer, with Mayer withdrawing in the third set. The unseeded Lu achieved the biggest of the upsets on "Manic Monday" by beating world No. 5, Andy Roddick (who was ranked 77 places higher than Lu), in 4 hours and 36 mins with the fifth set going to 9–7. He lost to No. 3 seed Novak Djokovic but moved up 40 places to 42nd in the ATP after Wimbledon. The ATP named Lu's fourth-round Wimbledon upset against Roddick as the biggest upset of 2010. At the beginning of November, Lu reached a career-high ATP ranking of 33.

### 2011–2013

At the 2011 Farmers Classic, Lu defeated Robby Ginepri in the first round. He then defeated Marcos Baghdatis before losing to Ryan Harrison in the quarter-finals. He started the Odlum Brown Vancouver Open as the number one seeded player, defeating George Bastl in the first round before losing to Alex Bogdanovic. At the Rogers Cup, Lu lost to Bernard Tomic in the first round.
On 15 June 2012, Lu clinched a huge maiden victory with a third set tie-break triumph over third seed Janko Tipsarević to reach the quarter-finals at Queen's Club.
Lu lost in the second round in all Grand Slam events held in 2013.

### 2014–2015

On 10 January 2014, Lu reached his maiden ATP final in Auckland against John Isner by defeating David Ferrer in the semifinals but lost in the final 6–7, 6–7. During the 2014 Asian Games, the ATP threatened to fine and ban Lu for three years if he did not report to the China Open on September 29. He had signed up to participate in both events, but the final for the Asian Games did not take place until September 30, a schedule conflict the ATP would not accommodate. In response, Lu dropped out of the China Open. The ATP then announced that Lu would be fined, but not banned.
In 2015, Lu won his third doubles tournament with Jonathan Marray, at the Chennai Open. Lu also reached a career milestone by becoming only the second player in history to reach 300 career Challenger wins behind Rubén Ramírez Hidalgo.

### 2016–2020

In 2016, Lu reached the finals of six more challenger events and won four. His best ATP Tour performance of the year was a quarterfinal appearance at the 2016 Winston-Salem Open.
On 12 August 2017, Lu won his 37th and last challenger singles title against Ričardas Berankis. Lu would end his career with a combined 56 Challenger titles between the singles and doubles. He holds the record for the most singles Challenger titles and the most combined singles and doubles Challenger titles.
In 2018, Lu underwent shoulder surgery which kept him out of play for most of the 2018 season and all of the 2019 season.
Lu officially came back at the 2020 Australian Open where he gained a protected ranking in the main draw. He lost to Gaël Monfils in the first round in straight sets.

### 2021

At the Miami Open, Lu recorded his last ATP match win against Sam Querrey. He would then lose in the next round to world No. 2, Daniil Medvedev.
In June 2021, after playing a few more ATP matches, Lu announced that he would retire from tennis and that the 2021 Wimbledon Championships and the 2021 Tokyo Olympics would be his last tournaments on the tour.
At the Tokyo Olympics, he was one of the two official flag bearers for Taiwan (Chinese Taipei) at the opening ceremony.
On 25 July 2021, Lu played his last career tennis match at the Olympics against Alexander Zverev where he lost in straight sets. With this appearance, he became one of 6 male tennis players with 5 or more appearances at the Olympics, and is the only male tennis player alongside Novak Djokovic to date who competed in singles at 5 Olympics.

## Coaching career

Lu is the current coach of Chinese tennis player Zhang Zhizhen.

## ATP career finals
### Singles: 1 (runner-up)

* Legend
* Grand Slam tournaments
* ATP World Tour Masters 1000
* ATP World Tour 500 Series
* ATP World Tour 250 Series (0–1)
* Finals by surface
* Hard (0–1)
* Clay (0–0)
* Grass (0–0)
* Carpet (0–0)
| Result | W–L | Date | Tournament | Surface | Opponent | Score |
| Runner-up | 0–1 | Jan 2014 | Auckland Open, New Zealand | Hard | John Isner | 6–7$^{(4–7)}$, 6–7$^{(7–9)}$ |

### Doubles: 6 (3–3)

* Legend
* Grand Slam tournaments
* ATP World Tour Masters 1000
* ATP World Tour 500 Series
* ATP World Tour 250 Series (3–3)
* Finals by surface
* Hard (0–0)
* Clay (0–1)
* Grass (0–0)
* Carpet (0–0)
| Outcome | W–L | Date | Tournament | Surface | Partner | Opponents | Score |
| Winner | 1–0 | Jan 2005 | Chennai Open, India | Hard | Rainer Schüttler | Jonas Björkman Mahesh Bhupathi | 7–5, 4–6, 7–6 $^{(7–4)}$ |
| Runner-up | 1–1 | Sep 2007 | China Open | Hard | Chris Haggard | Rik de Voest Ashley Fisher | 7–6$^{(7–3)}$, 0–6, [6–10] |
| Runner-up | 1–2 | Jan 2010 | Chennai Open, India | Hard | Janko Tipsarević | Marcel Granollers Santiago Ventura | 5–7, 2–6 |
| Winner | 2–2 | Sep 2012 | Thailand Open | Hard (i) | Danai Udomchoke | Eric Butorac Paul Hanley | 6–3, 6–4 |
| Winner | 3–2 | Jan 2015 | Chennai Open, India | Hard | Jonathan Marray | Raven Klaasen Leander Paes | 6–3, 7–6$^{(7–4)}$ |
| Runner-up | 3–3 | May 2015 | Geneva Open, Switzerland | Clay | Raven Klaasen | Juan Sebastián Cabal Robert Farah | 5–7, 6–4, [7–10] |

## ATP Challenger and ITF Futures finals
### Singles: 56 (37–19)

* Legend
* ATP Challenger Tour (29–17)
* ITF Futures Tour (8–2)
* Finals by surface
* Hard (34–15)
* Clay (0–0)
* Grass (2–1)
* Carpet (1–3)
| Result | W–L | Date | Tournament | Tier | Surface | Opponent | Score |
| Win | 1–0 | Oct 2001 | Hong Kong F1, Hong Kong | Futures | Hard | Peter Handoyo | 6–3, 6–4 |
| Loss | 1–1 | Nov 2001 | Vietnam F1, Hanoi | Futures | Hard | Aisam Qureshi | 4–6, 3–4 ret. |
| Win | 2–1 | Feb 2002 | Israel F1, Ramat HaSharon | Futures | Hard | Nir Welgreen | 6–4, 6–4 |
| Win | 3–1 | Apr 2002 | China F1, Kunming City | Futures | Hard | Benjamin Cassaigne | 6–4, 3–6, 7–6$^{(7–5)}$ |
| Win | 4–1 | Apr 2002 | China F2, Kunming City | Futures | Hard | Benjamin Cassaigne | 2–6, 7–6$^{(8–6)}$, 6–3 |
| Win | 5–1 | Sep 2002 | Japan F7, Saitama | Futures | Hard | Takahiro Terachi | 6–2, 6–2 |
| Win | 6–1 | Apr 2003 | China F1, Taizhou | Futures | Hard | Zhu Benqiang | 7–6$^{(7–5)}$, 6–2 |
| Win | 7–1 | Sep 2003 | Japan F6, Kashiwa | Futures | Hard | Tasuku Iwami | 6–1, 3–6, 6–1 |
| Loss | 7–2 | Sep 2003 | Japan F7, Saitama | Futures | Hard | Takahiro Terachi | 2–6, ret. |
| Win | 8–2 | Nov 2003 | USA F30, Hammond | Futures | Hard | Lesley Joseph | 6–2, 6–2 |
| Win | 9–2 | Feb 2004 | Joplin, United States | Challenger | Hard | Glenn Weiner | 6–4, 6–2 |
| Loss | 9–3 | Feb 2004 | Ho Chi Minh City, Vietnam | Challenger | Hard | Arvind Parmar | 3–6, 7–6$^{(7–3)}$, 3–6 |
| Loss | 9–4 | Mar 2004 | Kyoto, Japan | Challenger | Carpet | Michal Tabara | 6–7$^{(5–7)}$, 3–4 ret. |
| Win | 10–4 | Mar 2004 | Burnie, Australia | Challenger | Hard | Robert Lindstedt | 6–3, 6–0 |
| Loss | 10–5 | Apr 2004 | Busan, South Korea | Challenger | Hard | Alexander Peya | 3–6, 7–5, 3–6 |
| Loss | 10–6 | Apr 2004 | Mexico City, Mexico | Challenger | Hard | Jeff Morrison | 6–4, 6–7$^{(3–7)}$, 2–6 |
| Win | 11–6 | Nov 2004 | Caloundra, Australia | Challenger | Hard | Takahiro Terachi | 6–0, 7–5 |
| Win | 12–6 | May 2005 | Fergana, Uzbekistan | Challenger | Hard | Danai Udomchoke | 6–1, 7–6$^{(7–2)}$ |
| Loss | 12–7 | Jan 2006 | Waikoloa, United States | Challenger | Hard | Frank Dancevic | 7–6$^{(17–15)}$, 2–6, 2–6 |
| Loss | 12–8 | Mar 2006 | Kyoto, Japan | Challenger | Carpet | Nicolas Mahut | 4–6, 1–6 |
| Loss | 12–9 | Nov 2006 | Rimouski, Canada | Challenger | Carpet | Kristian Pless | 4–6, 6–7$^{(5–7)}$ |
| Win | 13–9 | Nov 2006 | Caloundra, Australia | Challenger | Hard | Peter Luczak | 6–3, 6–1 |
| Loss | 13–10 | Nov 2006 | Kawana, Australia | Challenger | Hard | Julien Jeanpierre | 3–6, 6–1, 4–6 |
| Loss | 13–11 | Jul 2007 | Granby, Canada | Challenger | Hard | Takao Suzuki | 4–6, 4–6 |
| Loss | 13–12 | Oct 2007 | Sacramento, United States | Challenger | Hard | Wayne Odesnik | 2–6, 3–6 |
| Win | 14–12 | Nov 2007 | Kaohsiung, Taiwan | Challenger | Hard | Dudi Sela | 6–3, 6–3 |
| Win | 15–12 | Jan 2008 | Waikoloa, United States | Challenger | Hard | Vince Spadea | 6–2, 6–0 |
| Loss | 15–13 | Apr 2008 | Busan, South Korea | Challenger | Hard | Go Soeda | 2–6, ret. |
| Loss | 15–14 | May 2008 | Lanzarote, Spain | Challenger | Hard | Stéphane Bohli | 3–6, 4–6 |
| Win | 16–14 | May 2008 | New Delhi, India | Challenger | Hard | Brendan Evans | 5–7, 7–6$^{(7–5)}$, 6–3 |
| Loss | 16–15 | May 2008 | New Delhi, India | Challenger | Hard | Go Soeda | 3–6, 6–3, 4–6 |
| Win | 17–15 | Oct 2008 | Tashkent, Uzbekistan | Challenger | Hard | Mathieu Montcourt | 6–3, 6–2 |
| Win | 18–15 | May 2009 | Ramat HaSharon, Israel | Challenger | Hard | Benjamin Becker | 6–3, 3–1 ret. |
| Win | 19–15 | Nov 2009 | Chuncheon, South Korea | Challenger | Hard | Igor Sijsling | 6–2, 6–3 |
| Win | 20–15 | Apr 2010 | Athens, Greece | Challenger | Hard | Rainer Schüttler | 3–6, 7–6$^{(7–3)}$, 6–4 |
| Loss | 20–16 | May 2010 | Busan, South Korea | Challenger | Hard | Lim Yong-kyu | 1–6, 4–6 |
| Win | 21–16 | Oct 2010 | Seoul, South Korea | Challenger | Hard | Kevin Anderson | 6–3, 6–4 |
| Win | 22–16 | Sep 2011 | Ningbo, China | Challenger | Hard | Jürgen Zopp | 6–2, 3–6, 6–1 |
| Win | 23–16 | Oct 2011 | Seoul, South Korea | Challenger | Hard | Jimmy Wang | 7–5, 6–3 |
| Win | 24–16 | Mar 2012 | Singapore, Singapore | Challenger | Hard | Go Soeda | 6–3, 6–4 |
| Win | 25–16 | Sep 2012 | Shanghai, China | Challenger | Hard | Peter Gojowczyk | 7–5, 6–0 |
| Win | 26–16 | Oct 2012 | Seoul, South Korea | Challenger | Hard | Yūichi Sugita | 6–3, 7–6$^{(7–4)}$ |
| Win | 27–16 | Jul 2013 | Beijing, China | Challenger | Hard | Go Soeda | 6–2, 6–4 |
| Win | 28–16 | Sep 2013 | Kaohsiung, Taiwan | Challenger | Hard | Yuki Bhambri | 6–4, 6–3 |
| Win | 29–16 | Jul 2014 | Kaohsiung, Taiwan | Challenger | Hard | Luca Vanni | 6–7$^{(7–9)}$, 6–4, 6–4 |
| Win | 30–16 | Oct 2015 | Ningbo, China | Challenger | Hard | Jürgen Zopp | 7–6$^{(7–3)}$, 6–1 |
| Loss | 30–17 | May 2016 | Seoul, South Korea | Challenger | Hard | Sergiy Stakhovsky | 6–4, 3–6, 6–7$^{(7–9)}$ |
| Loss | 30–18 | Jun 2016 | Manchester, Great Britain | Challenger | Grass | Dustin Brown | 6–7$^{(5–7)}$, 1–6 |
| Win | 31–18 | Jun 2016 | Surbiton, Great Britain | Challenger | Grass | Marius Copil | 7–5, 7–6$^{(13-11)}$ |
| Win | 32–18 | Jun 2016 | Ilkley, Great Britain | Challenger | Grass | Vincent Millot | 7–6$^{(7–4)}$, 6–2 |
| Win | 33–18 | Oct 2016 | Ningbo, China | Challenger | Hard | Hiroki Moriya | 6–3, 6–1 |
| Win | 34–18 | Oct 2016 | Suzhou, China | Challenger | Hard | Stefan Kozlov | 6–0, 6–1 |
| Win | 35–18 | Apr 2017 | Taipei, Taiwan | Challenger | Carpet | Tatsuma Ito | 6–1, 7–6$^{(7–4)}$ |
| Win | 36–18 | Aug 2017 | Chengdu, China | Challenger | Hard | Evgeny Donskoy | 6–3, 6–4 |
| Win | 37–18 | Aug 2017 | Jinan, China | Challenger | Hard | Ričardas Berankis | 6–3, 6–1 |
| Loss | 37–19 | Sep 2017 | Shanghai, China | Challenger | Hard | Wu Yibing | 6–7$^{(6–8)}$, ret. |

### Doubles: 31 (19–12)

* Legend
* ATP Challenger Tour (13–6)
* ITF Futures Tour (6–6)
* Finals by surface
* Hard (18–11)
* Clay (0–0)
* Grass (0–0)
* Carpet (1–1)
| Result | W–L | Date | Tournament | Tier | Surface | Partner | Opponents | Score |
| Loss | 0–1 | Nov 2001 | Thailand F1, Pattaya | Futures | Hard | Frank Moser | Peter Handoyo Raven Klaasen | 3–6, 2–6 |
| Win | 1–1 | Nov 2001 | Thailand F2, Nonthaburi | Futures | Hard | Frank Moser | Rik de Voest Johan Du Randt | 6–2, 6–4 |
| Loss | 1–2 | Nov 2001 | Vietnam F1, Hanoi | Futures | Hard | Frank Moser | Lior Dahan Rik de Voest | walkover |
| Win | 2–2 | Feb 2002 | United Arab Emirates F2, Abu Dhabi | Futures | Hard | Rohan Bopanna | Tomas Janci Roman Kukal | 7–5, 7–5 |
| Win | 3–2 | Feb 2002 | Israel F1, Ramat HaSharon | Futures | Hard | Lior Dahan | Josef Neštický Nir Welgreen | 7–5, 6–4 |
| Loss | 3–3 | Apr 2002 | China F2, Kunming City | Futures | Hard | John Hui | Yang Jing-Zhu Zhu Benqiang | 6–7$^{(4–7)}$, 7–6$^{(7–5)}$, 4–6 |
| Win | 4–3 | May 2002 | Japan F4, Fukuoka | Futures | Hard | John Hui | Niko Karagiannis Wesley Moodie | 6–3, 5–7, 6–4 |
| Win | 5–3 | Jun 2002 | Japan F5, Fukuoka | Futures | Hard | Hiroki Kondo | Michihisa Onoda Masahide Sakamoto | 6–2, 6–1 |
| Loss | 5–4 | Jul 2002 | Campos do Jordão, Brazil | Challenger | Hard | Danai Udomchoke | Alejandro Hernández Daniel Melo | walkover |
| Loss | 5–5 | Sep 2002 | Japan F6, Kashiwa | Futures | Hard | Toshihide Matsui | Peter Handoyo Suwandi Suwandi | 3–6, 2–6 |
| Loss | 5–6 | Nov 2002 | Hong Kong F2, Hong Kong | Futures | Hard | John Hui | Fred Hemmes Jun Kato | 3–6, 6–7$^{(2–7)}$ |
| Win | 6–6 | Dec 2002 | Yokohama, Japan | Challenger | Carpet | Danai Udomchoke | Ivo Karlović Mark Nielsen | 7–6$^{(7–5)}$, 6–3 |
| Win | 7–6 | Jul 2003 | Granby, Canada | Challenger | Hard | Danai Udomchoke | Josh Goffi Ryan Sachire | 6–7$^{(4–7)}$, 6–4, 7–6$^{(7–0)}$ |
| Loss | 7–7 | Sep 2003 | Japan F7, Saitama | Futures | Hard | Mark Nielsen | Kentaro Masuda Takahiro Terachi | 6–4, 3–3 ret. |
| Win | 8–7 | Nov 2003 | USA F30, Hammond | Futures | Hard | Bruno Soares | Amer Delić Bobby Reynolds | 6–4, 6–4 |
| Win | 9–7 | Nov 2003 | Austin, United States | Challenger | Hard | Jason Marshall | Josh Goffi Tripp Phillips | 6–2, 2–6, 6–3 |
| Win | 10–7 | Feb 2004 | Joplin, United States | Challenger | Hard | Bruno Soares | Rajeev Ram Brian Baker | 3–6, 6–1, 6–1 |
| Loss | 10–8 | Mar 2004 | Kyoto, Japan | Challenger | Carpet | Jason Marshall | Fred Hemmes Rik de Voest | 3–6, 7–6$^{(10–8)}$, 4–6 |
| Win | 11–8 | Mar 2004 | Burnie, Australia | Challenger | Hard | Rik de Voest | Leonardo Azzaro Oliver Marach | 6–3, 1–6, 7–5 |
| Loss | 11–9 | Apr 2004 | Mexico City, Mexico | Challenger | Hard | Danai Udomchoke | Nathan Healey Tuomas Ketola | 5–7, 6–7$^{(6–8)}$ |
| Win | 12–9 | Nov 2004 | Caloundra, Australia | Challenger | Hard | Luke Bourgeois | Mark Hlawaty Shannon Nettle | 7–6$^{(7–2)}$, 7–5 |
| Win | 13–9 | Nov 2004 | Helsinki, Finland | Challenger | Hard | Robert Lindstedt | Gianluca Bazzica Massimo Dell'Acqua | 6–2, 6–2 |
| Loss | 13–10 | May 2005 | Fergana, Uzbekistan | Challenger | Hard | Danai Udomchoke | Murad Inoyatov Denis Istomin | 1–6, 3–6 |
| Win | 14–10 | Jul 2005 | Granby, Canada | Challenger | Hard | Johan Landsberg | Philip Bester Frank Dancevic | 4–6, 7–6$^{(7–5)}$, 7–5 |
| Win | 15–10 | Feb 2006 | Burnie, Australia | Challenger | Hard | Luke Bourgeois | Raphael Durek Alun Jones | 6–3, 6–2 |
| Loss | 15–11 | Apr 2006 | Chikmagalur, India | Challenger | Hard | Danai Udomchoke | Sonchat Ratiwatana Sanchai Ratiwatana | 3–6, 2–6 |
| Loss | 15–12 | Jul 2006 | Granby, Canada | Challenger | Hard | Frank Moser | Alessandro Gravina Gary Lugassy | 2–6, 6–7$^{(2–7)}$ |
| Win | 16–12 | Oct 2007 | Seoul, South Korea | Challenger | Hard | Rik de Voest | Sonchat Ratiwatana Sanchai Ratiwatana | 6–3, 7–5 |
| Win | 17–12 | Nov 2009 | Seoul, South Korea | Challenger | Hard | Rik de Voest | Sonchat Ratiwatana Sanchai Ratiwatana | 7–6$^{(7–5)}$, 3–6, [10–6] |
| Win | 18–12 | Apr 2010 | Athens, Greece | Challenger | Hard | Rik de Voest | Robin Haase Igor Sijsling | 6–3, 6–4 |
| Win | 19–12 | Nov 2015 | Hua Hin, Thailand | Challenger | Hard | Lee Hsin-han | Andre Begemann Purav Raja | walkover |

## Performance timelines

Key :
| W | F | SF | QF | #R | RR | Q# | DNQ | A | NH |

### Singles

| Tournament | 2001 | 2002 | 2003 | 2004 | 2005 | 2006 | 2007 | 2008 | 2009 | 2010 | 2011 | 2012 | 2013 | 2014 | 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | SR | W–L | Win % |
| Grand Slam tournaments |||||||||||||||||||||||||
| Australian Open | A | A | Q1 | Q1 | 1R | 1R | 2R | 1R | 3R | 1R | 1R | 3R | 2R | 2R | 1R | A | 1R | A | A | 1R | 1R | 0 / 14 | 7–14 | 33% |
| French Open | A | A | A | Q2 | A | A | 1R | A | 1R | 1R | 1R | 1R | 2R$^1$ | 1R | 2R | 1R | 1R | A | A | A | 1R | 0 / 11 | 2–10 | 17% |
| Wimbledon | A | A | Q1 | 2R | 2R | 1R | 1R | 1R | 1R | QF | 3R | 1R | 2R | 2R | 1R | 2R | 1R | A | A | NH | 1R | 0 / 15 | 11–15 | 42% |
| US Open | A | Q1 | Q1 | 1R | A | A | A | 2R | 1R | 1R | 1R | 1R | 2R | 1R | 1R | 1R | 2R | A | A | A | A | 0 / 11 | 3–11 | 21% |
| Win–loss | 0–0 | 0–0 | 0–0 | 1–2 | 1–2 | 0–2 | 1–3 | 1–3 | 2–4 | 4–4 | 2–4 | 2–4 | 4–3 | 2–4 | 1–4 | 1–3 | 1–4 | 0–0 | 0–0 | 0–1 | 0–3 | 0 / 51 | 23–50 | 32% |
| Olympic Games |||||||||||||||||||||||||
| Summer Olympics | Not Held | Not Held | Not Held | 1R | Not Held | Not Held | Not Held | 3R | Not Held | Not Held | Not Held | 1R | Not Held | Not Held | Not Held | 1R | Not Held | Not Held | Not Held | Not Held | 1R | 0 / 5 | 2–5 | 29% |
| ATP Tour Masters 1000 |||||||||||||||||||||||||
| Indian Wells Masters | A | A | A | A | A | A | A | 1R | 2R | 2R | 2R | 1R | 3R | 3R | 1R | A | 1R | A | A | NH | A | 0 / 9 | 7–9 | 44% |
| Miami Open | A | A | A | A | A | A | A | 1R | 2R | 2R | 2R | 2R | 2R | 2R | 1R | A | 2R | A | A | NH | 2R | 0 / 10 | 8–10 | 44% |
| Monte-Carlo Masters | A | A | A | A | A | A | A | A | A | A | A | A | A | 2R | A | A | A | A | A | NH | A | 0 / 1 | 1–1 | 50% |
| Madrid Open$^2$ | A | A | A | A | Q1 | A | A | A | A | A | 2R | A | A | A | A | A | A | A | A | NH | A | 0 / 1 | 1–1 | 50% |
| Italian Open | A | A | A | Q1 | A | A | A | A | A | A | A | A | A | A | A | A | A | A | A | A | A | 0 / 0 | 0–0 | N/A |
| Canadian Open | A | A | A | Q1 | A | A | A | Q1 | 1R | 3R | 1R | 1R | 1R | 2R | 1R | 2R | A | A | A | NH | A | 0 / 8 | 4–8 | 33% |
| Cincinnati Masters | A | A | A | 1R | A | A | A | A | 1R | 1R | A | 2R | Q1 | 3R | 1R | Q1 | A | A | A | A | A | 0 / 6 | 3–6 | 33% |
| Shanghai Masters | Not ATP Masters Series | Not ATP Masters Series | Not ATP Masters Series | Not ATP Masters Series | Not ATP Masters Series | Not ATP Masters Series | Not ATP Masters Series | Not ATP Masters Series | A | 2R | 1R | 2R | Q2 | 2R | 1R | Q2 | Q2 | A | A | NH | NH | 0 / 5 | 3–5 | 38% |
| Paris Masters | A | A | A | A | A | A | A | A | A | A | A | A | A | 1R | A | A | A | A | A | A | A | 0 / 1 | 0–1 | 0% |
| Win–loss | 0–0 | 0–0 | 0–0 | 0–1 | 0–0 | 0–0 | 0–0 | 0–2 | 2–4 | 5–5 | 3–5 | 3–5 | 3–3 | 8–7 | 0–5 | 1–1 | 1–2 | 0–0 | 0–0 | 0–0 | 1–1 | 0 / 41 | 27–41 | 40% |
| Career statistics |||||||||||||||||||||||||
| Titles / finals | 0 / 0 | 0 / 0 | 0 / 0 | 0 / 0 | 0 / 0 | 0 / 0 | 0 / 0 | 0 / 0 | 0 / 0 | 0 / 0 | 0 / 0 | 0 / 0 | 0 / 0 | 0 / 1 | 0 / 0 | 0 / 0 | 0 / 0 | 0 / 0 | 0 / 0 | 0 / 0 | 0 / 0 | 0 / 1 | 0 / 1 | 0 / 1 |
| Overall win–loss | 2–1 | 0–0 | 3–2 | 5–10 | 6–8 | 2–7 | 7–15 | 11–15 | 10–23 | 15–20 | 12–21 | 12–18 | 17–17 | 24–21 | 19–21 | 7–9 | 9–14 | 0–0 | 0–0 | 0–2 | 1–7 | 162–231 | 162–231 | 162–231 |
| Win % | 67% | N/A | 60% | 33% | 43% | 22% | 32% | 42% | 30% | 43% | 36% | 40% | 50% | 53% | 48% | 44% | 39% | N/A | N/A | 0% | 13% | 41.22% | 41.22% | 41.22% |
| Year-end ranking | 543 | 192 | 190 | 87 | 158 | 89 | 110 | 64 | 98 | 35 | 82 | 59 | 65 | 38 | 77 | 64 | 71 | 532 | – | 1008 | 568 | $5,179,843 | $5,179,843 | $5,179,843 |
$^1$At the 2013 French Open, Lu withdrew prior to the second round. $^2$Held as Hamburg Masters until 2008, Madrid Masters (clay) 2009 – present.

### Doubles

| Tournament | 2005 | 2006 | 2007 | 2008 | 2009 | 2010 | 2011 | 2012 | 2013 | 2014 | 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | SR | W–L |
| Grand Slam tournaments ||||||||||||||||||||
| Australian Open | 3R | A | 1R | A | 1R | 1R | 2R | A | 2R | 1R | 1R | A | 1R | A | A | 1R | 1R | 0 / 11 | 4–11 |
| French Open | A | A | A | A | 1R | A | 1R | 2R | 1R | 1R | 1R | A | 1R | A | A | A | 2R | 0 / 8 | 2–8 |
| Wimbledon | A | A | A | A | 1R | 3R | A | 2R | 1R | 1R | 2R | 1R | A | A | A | NH | 1R | 0 / 8 | 4–8 |
| US Open | A | A | A | 1R | 3R | 1R | A | 1R | 2R | 2R | A | 2R | 2R | A | A | A | A | 0 / 8 | 6–8 |
| Win–loss | 2–1 | 0–0 | 0–1 | 0–1 | 2–4 | 2–3 | 1–2 | 2–2 | 2–4 | 1–4 | 1–3 | 1–2 | 1–3 | 0–0 | 0–0 | 0–1 | 1–3 | 0 / 33 | 16–34 |
| Career statistics ||||||||||||||||||||
| Titles / finals | 1 / 1 | 0 / 0 | 0 / 1 | 0 / 0 | 0 / 0 | 0 / 1 | 0 / 0 | 1 / 1 | 0 / 0 | 0 / 0 | 1 / 2 | 0 / 0 | 0 / 0 | 0 / 0 | 0 / 0 | 0 / 0 | 0 / 0 | 3 / 6 | 3 / 6 |
| Year-end ranking | 116 | 205 | 223 | 794 | 177 | 88 | 208 | 144 | 194 | 577 | 117 | 462 | 235 | – | – | – | 525 | | |

## Wins over top 10 players

Yen-hsun has a 7–29 record against players who were, at the time the match was played, ranked in the top 10.
| Season | 2001 | 2002 | 2003 | 2004 | 2005 | 2006 | 2007 | 2008 | 2009 | 2010 | 2011 | 2012 | 2013 | 2014 | 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | Total |
| Wins | 0 | 0 | 0 | 1 | 0 | 0 | 0 | 1 | 0 | 1 | 0 | 2 | 0 | 2 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 7 |
| # | Player | Rank | Event | Surface | Round | Score |
| 2004 |||||||
| 1. | Guillermo Coria | 3 | London, England | Grass | 2R | 6–2, 6–4 |
| 2008 |||||||
| 2. | Andy Murray | 6 | Beijing, China | Hard | 1R | 7–6$^{(7–5)}$, 6–4 |
| 2010 |||||||
| 3. | Andy Roddick | 7 | Wimbledon, England | Grass | 4R | 4–6, 7–6$^{(7–3)}$, 7–6$^{(7–4)}$, 6–7$^{(5–7)}$, 9–7 |
| 2012 |||||||
| 4. | Janko Tipsarević | 8 | London, England | Grass | 3R | 6–3, 2–6, 7–6$^{(7–5)}$ |
| 5. | David Ferrer | 5 | Beijing, China | Hard | 1R | 5–4 ret. |
| 2014 |||||||
| 6. | David Ferrer | 3 | Auckland, New Zealand | Hard | SF | 6–4, 7–6$^{(7–4)}$ |
| 7. | Tomáš Berdych | 5 | Cincinnati, United States | Hard | 2R | 3–6, 6–3, 6–4 |

## Equipment

Lu was sponsored by adidas (apparel and shoes), Head (rackets), Chunghwa Telecom and CPC Corporation. On court, Lu used a Head IG Extreme Pro racket, Signum Poly Pro strings, and a Tournagrip overgrip.