# 2009 Juan Martín del Potro tennis season

The 2009 Juan Martín del Potro tennis season officially began at the Auckland Open, where he had won his first title at Auckland.

## All matches

Key :
| W | F | SF | QF | #R | RR | Q# | P# | DNQ | A | Z# | PO | G | S | B | NMS | NTI | P | NH |

### Singles matches

| Tournament | Match | Round | Opponent (seed or key) | Rank | Result | Score |
| Auckland Open Auckland, New Zealand ATP Tour 250 Hard, outdoor 12 – 17 January 2009 |
| Auckland Open Auckland, New Zealand ATP Tour 250 Hard, outdoor 12 – 17 January 2009 | – | 1R | Bye | Bye | Bye | Bye |
| Auckland Open Auckland, New Zealand ATP Tour 250 Hard, outdoor 12 – 17 January 2009 | 1 / 127 | 2R | Ernests Gulbis | 51 | Win | 4–6, 6–4, 6–1 |
| Auckland Open Auckland, New Zealand ATP Tour 250 Hard, outdoor 12 – 17 January 2009 | 2 / 128 | QF | Viktor Troicki | 53 | Win | 6–3, 6–2 |
| Auckland Open Auckland, New Zealand ATP Tour 250 Hard, outdoor 12 – 17 January 2009 | 3 / 129 | SF | Robin Söderling (3) | 17 | Win | 6–4, 6–3 |
| Auckland Open Auckland, New Zealand ATP Tour 250 Hard, outdoor 12 – 17 January 2009 | 4 / 130 | W | Sam Querrey (6) | 36 | Win (1) | 6–4, 6–4 |
| Australian Open Melbourne, Australia Grand Slam tournament Hard, outdoor 19 January – 1 February 2009 |
| Australian Open Melbourne, Australia Grand Slam tournament Hard, outdoor 19 January – 1 February 2009 | 5 / 131 | 1R | Mischa Zverev | 81 | Win | 6–3, 6–4, 6–2 |
| Australian Open Melbourne, Australia Grand Slam tournament Hard, outdoor 19 January – 1 February 2009 | 6 / 132 | 2R | Florian Mayer (Q) | 450 | Win | 6–1, 7–5, 6–2 |
| Australian Open Melbourne, Australia Grand Slam tournament Hard, outdoor 19 January – 1 February 2009 | 7 / 133 | 3R | Gilles Müller | 87 | Win | 6–7$^{(5–7)}$, 7–5, 6–3, 7–5 |
| Australian Open Melbourne, Australia Grand Slam tournament Hard, outdoor 19 January – 1 February 2009 | 8 / 134 | 4R | Marin Čilić (19) | 20 | Win | 5–7, 6–4, 6–4, 6–3 |
| Australian Open Melbourne, Australia Grand Slam tournament Hard, outdoor 19 January – 1 February 2009 | 9 / 135 | QF | Roger Federer (2) | 2 | Loss | 3–6, 0–6, 0–6 |
| Pacific Coast Championships San Jose, United States ATP Tour 250 Hard, outdoor 9 – 15 February 2009 |
| Pacific Coast Championships San Jose, United States ATP Tour 250 Hard, outdoor 9 – 15 February 2009 | 10 / 136 | 1R | Andrea Stoppini (Q) | 209 | Win | 7–6$^{(7–5)}$, 7–6$^{(7–5)}$ |
| Pacific Coast Championships San Jose, United States ATP Tour 250 Hard, outdoor 9 – 15 February 2009 | 11 / 137 | 2R | Kei Nishikori | 56 | Win | 6–2, 6–2 |
| Pacific Coast Championships San Jose, United States ATP Tour 250 Hard, outdoor 9 – 15 February 2009 | 12 / 138 | QF | Mardy Fish (5) | 24 | Loss | 3–6, 4–6 |
| Memphis Open Memphis, United States ATP Tour 500 Hard, outdoor 15 – 22 February 2009 |
| Memphis Open Memphis, United States ATP Tour 500 Hard, outdoor 15 – 22 February 2009 | 13 / 139 | 1R | Guillermo Cañas | 69 | Win | 6–3, 7–6$^{(7–5)}$ |
| Memphis Open Memphis, United States ATP Tour 500 Hard, outdoor 15 – 22 February 2009 | 14 / 140 | 2R | Ernests Gulbis | 42 | Win | 6–3, 6–4 |
| Memphis Open Memphis, United States ATP Tour 500 Hard, outdoor 15 – 22 February 2009 | 15 / 141 | QF | Radek Štěpánek (5) | 19 | Loss | 6–7$^{(7–9)}$, 4–6 |
| Indian Wells Masters Indian Wells, United States ATP Tour Masters 1000 Hard, outdoor 9 – 22 March 2009 |
| Indian Wells Masters Indian Wells, United States ATP Tour Masters 1000 Hard, outdoor 9 – 22 March 2009 | – | 1R | Bye | Bye | Bye | Bye |
| Indian Wells Masters Indian Wells, United States ATP Tour Masters 1000 Hard, outdoor 9 – 22 March 2009 | 16 / 142 | 2R | Ryan Sweeting (WC) | 170 | Win | 6–7$^{(6–8)}$, 6–3, 6–1 |
| Indian Wells Masters Indian Wells, United States ATP Tour Masters 1000 Hard, outdoor 9 – 22 March 2009 | 17 / 143 | 3R | Jürgen Melzer (30) | 31 | Win | 6–2, 2–6, 7–6$^{(7–2)}$ |
| Indian Wells Masters Indian Wells, United States ATP Tour Masters 1000 Hard, outdoor 9 – 22 March 2009 | 18 / 144 | 4R | John Isner (WC) | 147 | Win | 7–6$^{(7–4)}$, 7–6$^{(7–3)}$ |
| Indian Wells Masters Indian Wells, United States ATP Tour Masters 1000 Hard, outdoor 9 – 22 March 2009 | 19 / 145 | QF | Rafael Nadal (1) | 1 | Loss | 2–6, 4–6 |
| Miami Open Miami, United States ATP Tour Masters 1000 Hard, outdoor 23 March – 5 April 2009 |
| Miami Open Miami, United States ATP Tour Masters 1000 Hard, outdoor 23 March – 5 April 2009 | – | 1R | Bye | Bye | Bye | Bye |
| Miami Open Miami, United States ATP Tour Masters 1000 Hard, outdoor 23 March – 5 April 2009 | 20 / 146 | 2R | Martín Vassallo Argüello | 52 | Win | 6–2, 6–2 |
| Miami Open Miami, United States ATP Tour Masters 1000 Hard, outdoor 23 March – 5 April 2009 | 21 / 147 | 3R | Janko Tipsarević | 46 | Win | 6–4, 6–1 |
| Miami Open Miami, United States ATP Tour Masters 1000 Hard, outdoor 23 March – 5 April 2009 | 22 / 148 | 4R | David Ferrer (11) | 12 | Win | 6–3, 6–2 |
| Miami Open Miami, United States ATP Tour Masters 1000 Hard, outdoor 23 March – 5 April 2009 | 23 / 149 | QF | Rafael Nadal (1) | 1 | Win | 6–4, 3–6, 7–6$^{(7–3)}$ |
| Miami Open Miami, United States ATP Tour Masters 1000 Hard, outdoor 23 March – 5 April 2009 | 24 / 150 | SF | Andy Murray (4) | 4 | Loss | 1–6, 7–5, 2–6 |
| Monte-Carlo Masters Monte Carlo, Monaco ATP Tour Masters 1000 Clay, outdoor 13 – 19 April 2009 |
| Monte-Carlo Masters Monte Carlo, Monaco ATP Tour Masters 1000 Clay, outdoor 13 – 19 April 2009 | – | 1R | Bye | Bye | Bye | Bye |
| Monte-Carlo Masters Monte Carlo, Monaco ATP Tour Masters 1000 Clay, outdoor 13 – 19 April 2009 | 25 / 151 | 2R | Ivan Ljubičić (WC) | 66 | Loss | 6–4, 1–6, 4–6 |
| Italian Open Rome, Italy ATP Tour Masters 1000 Clay, outdoor 27 April – 3 May 2009 |
| Italian Open Rome, Italy ATP Tour Masters 1000 Clay, outdoor 27 April – 3 May 2009 | – | 1R | Bye | Bye | Bye | Bye |
| Italian Open Rome, Italy ATP Tour Masters 1000 Clay, outdoor 27 April – 3 May 2009 | 26 / 152 | 2R | Viktor Troicki | 40 | Win | 6–3, 1–6, 6–3 |
| Italian Open Rome, Italy ATP Tour Masters 1000 Clay, outdoor 27 April – 3 May 2009 | 27 / 153 | 3R | Stan Wawrinka (10) | 12 | Win | 6–2, 6–7$^{(5–7)}$, 6–3 |
| Italian Open Rome, Italy ATP Tour Masters 1000 Clay, outdoor 27 April – 3 May 2009 | 28 / 154 | QF | Novak Djokovic (3) | 3 | Loss | 3–6, 4–6 |
| Madrid Open Madrid, Spain ATP Tour Masters 1000 Clay, outdoor 11 – 17 May 2009 |
| Madrid Open Madrid, Spain ATP Tour Masters 1000 Clay, outdoor 11 – 17 May 2009 | – | 1R | Bye | Bye | Bye | Bye |
| Madrid Open Madrid, Spain ATP Tour Masters 1000 Clay, outdoor 11 – 17 May 2009 | 29 / 155 | 2R | Tomáš Berdych | 22 | Win | 6–2, 4–1 Ret. |
| Madrid Open Madrid, Spain ATP Tour Masters 1000 Clay, outdoor 11 – 17 May 2009 | 30 / 156 | 3R | Stan Wawrinka (11) | 18 | Win | 4–6, 6–4, 6–4 |
| Madrid Open Madrid, Spain ATP Tour Masters 1000 Clay, outdoor 11 – 17 May 2009 | 31 / 157 | QF | Andy Murray (4) | 3 | Win | 7–6$^{(7–4)}$, 6–3 |
| Madrid Open Madrid, Spain ATP Tour Masters 1000 Clay, outdoor 11 – 17 May 2009 | 32 / 158 | SF | Roger Federer (2) | 2 | Loss | 3–6, 4–6 |
| World Team Cup Düsseldorf, Germany ATP Tour 250 Clay, outdoor 17 – 23 May 2009 |
| World Team Cup Düsseldorf, Germany ATP Tour 250 Clay, outdoor 17 – 23 May 2009 | 33 / 159 | RR | Andreas Seppi | 54 | Win | 6–3, 6–4 |
| World Team Cup Düsseldorf, Germany ATP Tour 250 Clay, outdoor 17 – 23 May 2009 | 34 / 160 | RR | Igor Andreev | 27 | Win | 6–3, 7–6$^{(7–3)}$ |
| French Open Paris, France Grand Slam tournament Clay, outdoor 25 May – 7 June 2009 |
| French Open Paris, France Grand Slam tournament Clay, outdoor 25 May – 7 June 2009 | 35 / 161 | 1R | Michaël Llodra | 78 | Win | 6–3, 6–3, 6–1 |
| French Open Paris, France Grand Slam tournament Clay, outdoor 25 May – 7 June 2009 | 36 / 162 | 2R | Viktor Troicki | 32 | Win | 6–3, 7–5, 6–0 |
| French Open Paris, France Grand Slam tournament Clay, outdoor 25 May – 7 June 2009 | 37 / 163 | 3R | Igor Andreev (25) | 27 | Win | 6–4, 7–5, 6–4 |
| French Open Paris, France Grand Slam tournament Clay, outdoor 25 May – 7 June 2009 | 38 / 164 | 4R | Jo-Wilfried Tsonga (9) | 9 | Win | 6–1, 6–7$^{(5–7)}$, 6–1, 6–4 |
| French Open Paris, France Grand Slam tournament Clay, outdoor 25 May – 7 June 2009 | 39 / 165 | QF | Tommy Robredo (16) | 17 | Win | 6–3, 6–4, 6–2 |
| French Open Paris, France Grand Slam tournament Clay, outdoor 25 May – 7 June 2009 | 40 / 166 | SF | Roger Federer (2) | 2 | Loss | 6–3, 6–7$^{(2–7)}$, 6–2, 1–6, 4–6 |
| Wimbledon London, United Kingdom Grand Slam tournament Grass, outdoor 22 June – 5 July 2009 |
| Wimbledon London, United Kingdom Grand Slam tournament Grass, outdoor 22 June – 5 July 2009 | 41 / 167 | 1R | Arnaud Clément | 53 | Win | 6–3, 6–1, 6–2 |
| Wimbledon London, United Kingdom Grand Slam tournament Grass, outdoor 22 June – 5 July 2009 | 42 / 168 | 2R | Lleyton Hewitt | 56 | Loss | 3–6, 5–7, 5–7 |
| Davis Cup, World Group Quarter Finals Ostrava, Czech Republic Davis Cup Clay, outdoor 6 – 8 March 2009 |
| Davis Cup, World Group Quarter Finals Ostrava, Czech Republic Davis Cup Clay, outdoor 6 – 8 March 2009 | 43 / 169 | QF R2 | Ivo Minář | 64 | Win | 6–1, 6–3, 6–3 |
| Davis Cup, World Group Quarter Finals Ostrava, Czech Republic Davis Cup Clay, outdoor 6 – 8 March 2009 | 44 / 170 | QF R4 | Tomáš Berdych | 20 | Win | 6–4, 6–4, 6–4 |
| Washington Open Washington, D.C., United States ATP Tour 500 Hard, outdoor 1 – 9 August 2009 |
| Washington Open Washington, D.C., United States ATP Tour 500 Hard, outdoor 1 – 9 August 2009 | – | 1R | Bye | Bye | Bye | Bye |
| Washington Open Washington, D.C., United States ATP Tour 500 Hard, outdoor 1 – 9 August 2009 | 45 / 171 | 2R | Sergiy Stakhovsky | 62 | Win | 4–6, 6–3, 6–2 |
| Washington Open Washington, D.C., United States ATP Tour 500 Hard, outdoor 1 – 9 August 2009 | 46 / 172 | 3R | Lleyton Hewitt (Q) | 42 | Win | 4–6, 6–3, 7–6$^{(7–2)}$ |
| Washington Open Washington, D.C., United States ATP Tour 500 Hard, outdoor 1 – 9 August 2009 | - | QF | Robin Söderling (5) | 12 | Win | W/O |
| Washington Open Washington, D.C., United States ATP Tour 500 Hard, outdoor 1 – 9 August 2009 | 47 / 173 | SF | Fernando González (4) | 11 | Win | 7–6$^{(7–2)}$, 6–3 |
| Washington Open Washington, D.C., United States ATP Tour 500 Hard, outdoor 1 – 9 August 2009 | 48 / 174 | W | Andy Roddick (1) | 5 | Win (2) | 3–6, 7–5, 7–6$^{(8–6)}$ |
| Canadian Open Montreal, Canada ATP Tour Masters 1000 Hard, outdoor 10 – 16 August 2009 |
| Canadian Open Montreal, Canada ATP Tour Masters 1000 Hard, outdoor 10 – 16 August 2009 | – | 1R | Bye | Bye | Bye | Bye |
| Canadian Open Montreal, Canada ATP Tour Masters 1000 Hard, outdoor 10 – 16 August 2009 | 49 / 175 | 2R | Jan Hernych (Q) | 86 | Win | 6–2, 7–5 |
| Canadian Open Montreal, Canada ATP Tour Masters 1000 Hard, outdoor 10 – 16 August 2009 | 50 / 176 | 3R | Victor Hănescu | 32 | Win | 3–6, 6–3, 6–4 |
| Canadian Open Montreal, Canada ATP Tour Masters 1000 Hard, outdoor 10 – 16 August 2009 | 51 / 177 | QF | Rafael Nadal (2) | 2 | Win | 7–6$^{(7–5)}$, 6–1 |
| Canadian Open Montreal, Canada ATP Tour Masters 1000 Hard, outdoor 10 – 16 August 2009 | 52 / 178 | SF | Andy Roddick (5) | 5 | Win | 4–6, 6–2, 7–5 |
| Canadian Open Montreal, Canada ATP Tour Masters 1000 Hard, outdoor 10 – 16 August 2009 | 53 / 179 | F | Andy Murray (3) | 3 | Loss (1) | 7–6$^{(7–4)}$, 6–7$^{(3–7)}$, 1–6 |
| US Open New York City, United States Grand Slam tournament Hard, outdoor 31 August – 13 September 2009 |
| US Open New York City, United States Grand Slam tournament Hard, outdoor 31 August – 13 September 2009 | 54 / 180 | 1R | Juan Mónaco | 41 | Win | 6–3, 6–3, 6–1 |
| US Open New York City, United States Grand Slam tournament Hard, outdoor 31 August – 13 September 2009 | 55 / 181 | 2R | Jürgen Melzer | 38 | Win | 7–6$^{(8–6)}$, 6–3, 6–3 |
| US Open New York City, United States Grand Slam tournament Hard, outdoor 31 August – 13 September 2009 | 56 / 182 | 3R | Daniel Köllerer | 62 | Win | 6–1, 3–6, 6–3, 6–3 |
| US Open New York City, United States Grand Slam tournament Hard, outdoor 31 August – 13 September 2009 | 57 / 183 | 4R | Juan Carlos Ferrero (24) | 25 | Win | 6–3, 6–3, 6–3 |
| US Open New York City, United States Grand Slam tournament Hard, outdoor 31 August – 13 September 2009 | 58 / 184 | QF | Marin Čilić (16) | 17 | Win | 4–6, 6–3, 6–2, 6–1 |
| US Open New York City, United States Grand Slam tournament Hard, outdoor 31 August – 13 September 2009 | 59 / 185 | SF | Rafael Nadal (3) | 3 | Win | 6–2, 6–2, 6–2 |
| US Open New York City, United States Grand Slam tournament Hard, outdoor 31 August – 13 September 2009 | 60 / 186 | W | Roger Federer (1) | 1 | Win (3) | 3–6, 7–6$^{(7–5)}$, 4–6, 7–6$^{(7–4)}$, 6–2 |
| Japan Open Tokyo, Japan ATP Tour 500 Hard, outdoor 5 – 11 October 2009 |
| Japan Open Tokyo, Japan ATP Tour 500 Hard, outdoor 5 – 11 October 2009 | 61 / 187 | 1R | Édouard Roger-Vasselin (Q) | 189 | Loss | 4–6, 4–6 |
| Shanghai Masters Shanghai, China ATP Tour Masters 1000 Hard, outdoor 12 – 18 October 2009 |
| Shanghai Masters Shanghai, China ATP Tour Masters 1000 Hard, outdoor 12 – 18 October 2009 | – | 1R | Bye | Bye | Bye | Bye |
| Shanghai Masters Shanghai, China ATP Tour Masters 1000 Hard, outdoor 12 – 18 October 2009 | 62 / 187 | 2R | Jürgen Melzer (6) | 43 | Loss | 5–7, 1–2, Ret. |
| Paris Open Paris, France ATP Tour Masters 1000 Hard, indoor 9 – 15 November 2009 |
| Paris Open Paris, France ATP Tour Masters 1000 Hard, indoor 9 – 15 November 2009 | – | 1R | Bye | Bye | Bye | Bye |
| Paris Open Paris, France ATP Tour Masters 1000 Hard, indoor 9 – 15 November 2009 | 63 / 188 | 2R | Marat Safin (WC) | 65 | Win | 6–4, 5–7, 6–4 |
| Paris Open Paris, France ATP Tour Masters 1000 Hard, indoor 9 – 15 November 2009 | 64 / 189 | 3R | Fernando González (10) | 11 | Win | 6–7$^{(6–8)}$, 7–6$^{(8–6)}$, Ret. |
| Paris Open Paris, France ATP Tour Masters 1000 Hard, indoor 9 – 15 November 2009 | 65 / 190 | QF | Radek Štěpánek (13) | 14 | Loss | 0–4, Ret. |
| ATP World Tour Finals London, United Kingdom ATP Finals Hard, indoor 23 – 29 November 2009 |
| ATP World Tour Finals London, United Kingdom ATP Finals Hard, indoor 23 – 29 November 2009 | 66 / 193 | RR | Andy Murray (4) | 4 | Loss | 3–6, 6–3, 2–6 |
| ATP World Tour Finals London, United Kingdom ATP Finals Hard, indoor 23 – 29 November 2009 | 67 / 194 | RR | Fernando Verdasco (7) | 8 | Win | 6–4, 3–6, 7–6$^{(7–1)}$ |
| ATP World Tour Finals London, United Kingdom ATP Finals Hard, indoor 23 – 29 November 2009 | 68 / 195 | RR | Roger Federer (1) | 1 | Win | 6–2, 6–7$^{(5–7)}$, 6–3 |
| ATP World Tour Finals London, United Kingdom ATP Finals Hard, indoor 23 – 29 November 2009 | 69 / 196 | SF | Robin Söderling (8) | 9 | Win | 6–7$^{(1–7)}$, 6–3, 7–6$^{(7–3)}$ |
| ATP World Tour Finals London, United Kingdom ATP Finals Hard, indoor 23 – 29 November 2009 | 70 / 197 | F | Nikolay Davydenko (6) | 7 | Loss (2) | 3–6, 4–6 |

## Yearly records
### Head-to-head matchups

Juan Martín del Potro had a 54–16 match win–loss record in the 2009 season. His record against players who were part of the ATP rankings Top Ten at the time of their meetings was 11–9. Bold indicates player was ranked top 10 at time of meeting. The following list is ordered by number of wins:
* Viktor Troicki 3–0
* Igor Andreev 2–0
* Tomáš Berdych 2–0
* Marin Čilić 2–0
* Fernando González 2–0
* Ernests Gulbis 2–0
* Andy Roddick 2–0
* Robin Söderling 2–0
* Stan Wawrinka 2–0
* Jürgen Melzer 2–1
* Martín Vassallo Argüello 1–0
* Guillermo Cañas 1–0
* Arnaud Clément 1–0
* David Ferrer 1–0
* Juan Carlos Ferrero 1–0
* Victor Hănescu 1–0
* Jan Hernych 1–0
* Lu Yen-Hsun 1–0
* John Isner 1–0
* Daniel Köllerer 1–0
* Michaël Llodra 1–0
* Florian Mayer 1–0
* Ivo Minář 1–0
* Juan Mónaco 1–0
* Gilles Müller 1–0
* Kei Nishikori 1–0
* Sam Querrey 1–0
* Tommy Robredo 1–0
* Marat Safin 1–0
* Andreas Seppi 1–0
* Andrea Stoppini 1–0
* Ryan Sweeting 1–0
* Janko Tipsarević 1–0
* Jo-Wilfried Tsonga 1–0
* Fernando Verdasco 1–0
* Mischa Zverev 1–0
* Rafael Nadal 3–1
* Roger Federer 2–3
* Andy Murray 1–3
* Lleyton Hewitt 1–1
* Ivan Ljubičić 0–1
* Nikolay Davydenko 0–1
* Novak Djokovic 0–1
* Édouard Roger-Vasselin 0–1
* Mardy Fish 0–1
* Radek Štěpánek 0–2