# 2012 FINA World Swimming Championships (25 m) – Men's 100 metre butterfly

The men's 100 metre butterfly event at the 11th FINA World Swimming Championships (25m) took place 12 – 13 December 2012 at the Sinan Erdem Dome.

## Records

Prior to this competition, the existing world and championship records were as follows.
| | Name | Nation | Time | Location | Date |
| World record | Yevgeny Korotyshkin | Russia | 48.48 | Berlin | 15 November 2009 |
| Championship record | Peter Mankoč | Slovenia | 50.04 | Manchester | 10 April 2008 |
The following records were established during the competition:
| Date | Event | Name | Nation | Time | Record |
| 13 December | Final | Chad le Clos | South Africa | 48.82 | CR |

## Results
### Heats

| Rank | Heat | Lane | Name | Time | Notes |
| 1 | 9 | 1 | Ryan Lochte (USA) | 50.16 | Q |
| 2 | 1 | 2 | Wu Peng (CHN) | 50.49 | Q, NR |
| 3 | 10 | 4 | Chad le Clos (RSA) | 50.73 | Q |
| 4 | 9 | 3 | Joeri Verlinden (NED) | 50.81 | Q |
| 5 | 8 | 4 | Tom Shields (USA) | 50.82 | Q |
| 6 | 10 | 7 | László Cseh (HUN) | 50.86 | Q, NR |
| 7 | 10 | 6 | Peter Mankoč (SLO) | 50.99 | Q |
| 8 | 9 | 6 | Kazuya Kaneda (JPN) | 51.00 | Q |
| 9 | 10 | 5 | Kenneth To (AUS) | 51.06 | Q |
| 10 | 9 | 2 | Jason Dunford (KEN) | 51.14 | Q |
| 11 | 9 | 4 | Konrad Czerniak (POL) | 51.15 | Q |
| 12 | 8 | 8 | Matteo Rivolta (ITA) | 51.19 | Q, NR |
| 13 | 8 | 3 | Nikolay Skvortsov (RUS) | 51.29 | Q |
| 13 | 9 | 5 | Rafael Muñoz (ESP) | 51.29 | Q |
| 15 | 8 | 5 | François Heersbrandt (BEL) | 51.31 | Q |
| 16 | 10 | 2 | Yauhen Tsurkin (BLR) | 51.47 | Q |
| 17 | 2 | 8 | Frédérick Bousquet (FRA) | 51.50 | |
| 18 | 10 | 3 | Kaio de Almeida (BRA) | 51.57 | |
| 19 | 9 | 7 | Bence Pulai (HUN) | 51.61 | |
| 20 | 10 | 0 | Chang Gyu-Cheol (KOR) | 51.70 | |
| 21 | 8 | 7 | Grant Irvine (AUS) | 51.81 | |
| 22 | 6 | 3 | Joseph Schooling (SIN) | 51.84 | NR |
| 23 | 8 | 2 | Viacheslav Prudnikov (RUS) | 51.89 | |
| 24 | 7 | 0 | Ben Hockin (PAR) | 51.99 | NR |
| 25 | 10 | 9 | Andreas Vazaios (GRE) | 52.05 | NR |
| 26 | 8 | 6 | Romain Sassot (FRA) | 52.07 | |
| 27 | 9 | 0 | Mauricio Fiol (PER) | 52.08 | NR |
| 28 | 10 | 8 | Michal Poprawa (POL) | 52.24 | |
| 29 | 10 | 1 | Robert Žbogar (SLO) | 52.34 | |
| 30 | 2 | 0 | Chen Yin (CHN) | 52.36 | |
| 31 | 7 | 3 | Coleman Allen (CAN) | 52.60 | |
| 32 | 6 | 6 | Victor Bromer (DEN) | 52.98 | |
| 33 | 7 | 6 | Dominik Straga (CRO) | 53.14 | |
| 34 | 7 | 5 | Alex Hernandez Medina (CUB) | 53.15 | |
| 35 | 8 | 0 | Joshua McLeod (TRI) | 53.20 | |
| 36 | 7 | 1 | Zackariah Chetrat (CAN) | 53.23 | |
| 37 | 8 | 9 | Kenta Hirai (JPN) | 53.25 | |
| 38 | 9 | 9 | Martin Verner (CZE) | 53.32 | |
| 39 | 6 | 4 | Yevgeniy Lazuka (AZE) | 53.33 | |
| 40 | 7 | 4 | Garth Tune (RSA) | 53.44 | |
| 41 | 7 | 8 | Nurettin Yildir Erhan (TUR) | 53.51 | |
| 42 | 9 | 8 | Alon Mandel (ISR) | 53.65 | |
| 43 | 8 | 1 | Hoang Quy Phuoc (VIE) | 53.66 | |
| 44 | 6 | 7 | Emmanuel Crescimbeni (PER) | 53.69 | |
| 45 | 7 | 2 | Joaquin Belza (ARG) | 54.25 | |
| 46 | 7 | 7 | Alexandre Liess (SUI) | 54.26 | |
| 47 | 6 | 5 | Ng Chun Nam Derick (HKG) | 54.41 | |
| 48 | 6 | 8 | Jose Lobo Martinez (PAR) | 54.42 | |
| 49 | 6 | 2 | Aleksey Derlyugov (UZB) | 54.61 | |
| 50 | 6 | 0 | Ng Kai Wee Rainer (SIN) | 55.11 | |
| 51 | 5 | 8 | Radhames Kalaf (DOM) | 55.24 | |
| 52 | 6 | 1 | Pavel Naroskin (EST) | 55.29 | |
| 53 | 5 | 4 | Teimuraz Kobakhidze (GEO) | 55.53 | |
| 54 | 6 | 9 | Orri Freyr Gudmundsson (ISL) | 55.81 | |
| 55 | 5 | 6 | Pavel Izbisciuc (MDA) | 56.10 | |
| 56 | 5 | 7 | Joaquin Sepulveda (CHI) | 56.57 | |
| 57 | 7 | 9 | Matthew Abeysinghe (SRI) | 56.80 | |
| 58 | 5 | 1 | Timothy Wynter (JAM) | 56.92 | |
| 59 | 5 | 0 | Sarma Nair (IND) | 56.96 | |
| 60 | 5 | 9 | Afshin Asgari (IRI) | 57.00 | |
| 61 | 1 | 4 | Anthonny Sitraka Ralefy (MAD) | 57.41 | |
| 62 | 3 | 4 | Ahmad Attellesey (LBA) | 57.89 | |
| 63 | 4 | 5 | Julian Harding (MLT) | 57.90 | |
| 64 | 4 | 6 | James Sanderson (GIB) | 58.15 | |
| 65 | 4 | 7 | Valdo Lourenço (MOZ) | 58.24 | |
| 66 | 4 | 9 | Dulguun Batsaikhan (MGL) | 58.28 | |
| 67 | 1 | 3 | Adrian Todd (BOT) | 58.36 | |
| 68 | 3 | 5 | Paul Elaisa (FIJ) | 58.50 | |
| 68 | 5 | 2 | Obaid Al-Jasmi (UAE) | 58.50 | |
| 70 | 4 | 8 | Fernando Medrano Medina (NCA) | 58.55 | |
| 71 | 4 | 4 | Mohammed Al-Ghafri (UAE) | 58.69 | |
| 72 | 3 | 3 | Ralph Goveia (ZAM) | 58.90 | |
| 73 | 4 | 2 | Nuno Rola (ANG) | 58.99 | |
| 74 | 4 | 3 | Omar Mithqal (JOR) | 59.08 | |
| 75 | 1 | 6 | David van der Colff (BOT) | 59.12 | |
| 76 | 5 | 5 | Rahul Monal Chokshi (IND) | 59.43 | |
| 77 | 4 | 0 | Sio Ka Kun (MAC) | 59.69 | |
| 78 | 4 | 1 | Ameer Adnan Ali (IRQ) | 59.96 | |
| 79 | 3 | 2 | Stanford Gore Kawale (PNG) | 1:00.45 | |
| 80 | 3 | 6 | Khalid Baba (BHR) | 1:01.75 | |
| 81 | 3 | 7 | Omar Omar (QAT) | 1:01.85 | |
| 82 | 2 | 7 | Borhane Ahmed Mohamed Abro (DJI) | 1:02.12 | |
| 83 | 1 | 5 | Aung Thiha (MYA) | 1:02.24 | |
| 84 | 3 | 1 | Michael Hitchcock (GIB) | 1:02.70 | |
| 85 | 2 | 4 | Joseph Seguina (GUY) | 1:03.50 | |
| 86 | 2 | 5 | Hannibal Gaskin (GUY) | 1:03.60 | |
| 87 | 3 | 9 | Franc Aleksi (ALB) | 1:05.39 | |
| 88 | 2 | 9 | Giordan Harris (MHL) | 1:09.27 | |
| 89 | 2 | 6 | Jamal Tamasese (SAM) | 1:10.18 | |
| 90 | 2 | 3 | Mohamed Muthasim Adnan (MDV) | 1:12.69 | |
| | 2 | 2 | Chavez Joseph (VIN) | DSQ | |
| | 5 | 3 | Ayman Klzie (SYR) | DSQ | |
| | 2 | 1 | Leonardo Alcover (BRA) | DNS | |
| | 3 | 0 | Julien Brice (LCA) | DNS | |
| | 3 | 8 | Alassane Sylla (CIV) | DNS | |

### Semifinals

| Rank | Heat | Lane | Name | Nationality | Time | Notes |
| 1 | 2 | 3 | Tom Shields | United States | 50.14 | Q |
| 2 | 2 | 5 | Chad le Clos | South Africa | 50.16 | Q |
| 3 | 1 | 5 | Joeri Verlinden | Netherlands | 50.43 | Q |
| 4 | 2 | 4 | Ryan Lochte | United States | 50.59 | Q |
| 5 | 1 | 3 | László Cseh | Hungary | 50.72 | Q, NR |
| 6 | 1 | 1 | Rafael Muñoz | Spain | 50.73 | Q |
| 6 | 2 | 7 | Konrad Czerniak | Poland | 50.73 | Q |
| 8 | 1 | 4 | Wu Peng | China | 50.77 | ? |
| 8 | 2 | 1 | Nikolay Skvortsov | Russia | 50.77 | ? |
| 10 | 2 | 8 | François Heersbrandt | Belgium | 50.90 | |
| 11 | 2 | 2 | Kenneth To | Australia | 50.93 | |
| 12 | 2 | 6 | Peter Mankoč | Slovenia | 51.00 | |
| 13 | 1 | 6 | Kazuya Kaneda | Japan | 51.04 | |
| 14 | 1 | 2 | Jason Dunford | Kenya | 51.08 | |
| 15 | 1 | 7 | Matteo Rivolta | Italy | 51.10 | NR |
| 16 | 1 | 8 | Yauhen Tsurkin | Belarus | 51.23 | |

#### Swim-off

| Rank | Lane | Name | Nationality | Time | Notes |
| 1 | 5 | Nikolay Skvortsov | Russia | 50.60 | Q |
| 2 | 4 | Wu Peng | China | 50.78 | |

### Final

The final was held at 20:33.
| Rank | Lane | Name | Nationality | Time | Notes |
| | 5 | Chad le Clos | South Africa | 48.82 | CR, AF |
| | 4 | Tom Shields | United States | 49.54 | |
| | 6 | Ryan Lochte | United States | 49.59 | |
| 4 | 3 | Joeri Verlinden | Netherlands | 50.45 | |
| 5 | 1 | Konrad Czerniak | Poland | 50.54 | |
| 6 | 7 | Rafael Muñoz | Spain | 50.76 | |
| 6 | 8 | Nikolay Skvortsov | Russia | 50.76 | |
| 8 | 2 | László Cseh | Hungary | 50.93 | |