# Swimming at the 2007 World Aquatics Championships – Men's 100 metre butterfly

The men's 100 metre butterfly at the 2007 World Aquatics Championships took place on 30 March (heats, semifinals and a swim-off) and on the evening of 31 March (final) at Rod Laver Arena in Melbourne, Australia. 123 swimmers were entered in the event, of which 118 swam.
Existing records at the start of the event were:
* World record (WR): 50.40, Ian Crocker (USA), 30 July 2005 in Montreal, Canada.
* Championship record (CR): 50.40, Ian Crocker (USA), Montreal 2005 (30 July 2005)

## Results
### Finals

| Place | Name | Nationality | Time |
| 1 | Michael Phelps | USA | 50.77 |
| 2 | Ian Crocker | USA | 50.82 |
| 3 | Albert Subirats Altes | Venezuela | 51.82 |
| 4 | Lyndon Ferns | South Africa | 52.03 |
| 5 | Andriy Serdinov | Ukraine | 52.23 |
| 6 | Milorad Čavić | Serbia | 52.53 |
| 7 | Nikolay Skvortsov | Russia | 52.54 |
| 8 | Jason Dunford | Kenya | 52.70 |

### Semifinals

| Rank | Swimmer | Nation | Time | Note |
| 1 | Ian Crocker | USA | 51.41 | Q |
| 2 | Albert Subirats Altes | Venezuela | 51.81 | Q |
| 3 | Lyndon Ferns | South Africa | 51.90 | Q |
| 4 | Michael Phelps | USA | 51.92 | Q |
| 5 | Andriy Serdinov | Ukraine | 52.11 | Q |
| 6 | Milorad Čavić | Serbia | 52.16 | Q |
| 7 | Nikolay Skvortsov | Russia | 52.22 | Q |
| 8 | Jason Dunford | Kenya | 52.26 | Q-(swim-off) |
| 9 | Ryan Pini | Papua New Guinea | 52.26 | (swim-off) |
| 10 | Peter Mankoč | Slovenia | 52.31 | |
| 11 | Lars Frölander | Sweden | 52.39 | |
| 12 | Sergiy Breus | Ukraine | 52.46 | |
| 13 | Takashi Yamamoto | Japan | 52.74 | |
| 14 | Corney Swanepoel | New Zealand | 52.94 | |
| 15 | Andrew Lauterstein | Australia | 52.99 | |
| 16 | Yauheni Lazuka | Belarus | 53.46 | |

#### Swim-off for 8th/Finals

* Jason Dunford (Kenya) — 51.85 (Q)
* Ryan Pini (Papua New Guinea) — 52.10

### Heats

| Rank | Heat / Lane | Name | Nationality | 50m split | Time | Notes |
| 001 | H16-L4 | Ian Crocker | USA | 23.97 | 00:51.44 | Q |
| 002 | H01-L5 | Milorad Čavić | Serbia | 23.42 | 00:51.70 | Q |
| 003 | H15-L4 | Michael Phelps | USA | 24.92 | 00:51.95 | Q |
| 004 | H14-L5 | Albert Subirats Altes | Venezuela | 24.05 | 00:52.15 | Q |
| 005 | H15-L5 | Lyndon Ferns | South Africa | 24.01 | 00:52.26 | Q |
| 006 | H14-L3 | Ryan Pini | Papua New Guinea | 24.25 | 00:52.27 | Q |
| 007 | H16-L6 | Peter Mankoč | Slovenia | 24.24 | 00:52.30 | Q |
| 008 | H13-L5 | Lars Frölander | Sweden | 24.53 | 00:52.34 | Q |
| 009 | H16-L5 | Andriy Serdinov | Ukraine | 24.31 | 00:52.43 | Q |
| 010 | H16-L1 | Corney Swanepoel | New Zealand | 24.28 | 00:52.46 | Q |
| 011 | H15-L8 | Andrew Lauterstein | Australia | 24.80 | 00:52.63 | Q |
| 012 | H14-L8 | Sergiy Breus | Ukraine | 24.33 | 00:52.64 | Q |
| 013 | H16-L3 | Takashi Yamamoto | Japan | 24.56 | 00:52.69 | Q |
| 014 | H13-L2 | Jason Dunford | Kenya | 24.38 | 00:52.76 | Q |
| 015 | H14-L4 | Nikolay Skvortsov | Russia | 24.48 | 00:52.79 | Q |
| 016 | H12-L7 | Yauheni Lazuka | Belarus | 24.42 | 00:53.10 | Q |
| 016.5 | H13.5 | | | | 00:53.111 | O |
| 017 | H16-L8 | Gabriel Mangabeira | Brazil | 24.99 | 00:53.16 | |
| 018 | H14-L6 | Amaury Leveaux | France | 24.84 | 00:53.21 | |
| 019 | H15-L6 | Moss Burmester | New Zealand | 25.01 | 00:53.28 | |
| 020 | H15-L2 | Adam Pine | Australia | 25.21 | 00:53.33 | |
| 021 | H12-L6 | Octavio Alesi | Venezuela | 24.63 | 00:53.41 | |
| 022 | H14-L7 | Evgeny Korotyshkin | Russia | 25.01 | 00:53.47 | |
| 023 | H15-L3 | Ryo Takayasu | Japan | 24.69 | 00:53.53 | |
| 024 | H13-L3 | Örn Arnarson | Iceland | 24.59 | 00:53.54 | |
| 025 | H15-L1 | Fernando Silva | Brazil | 24.90 | 00:53.55 | |
| 026 | H14-L2 | Sotirios Pastras | Greece | 24.72 | 00:53.57 | |
| 027 | H16-L2 | Wang Dong | China | 24.66 | 00:53.61 | |
| 028 | H15-L7 | Rudy Goldin | Italy | 25.13 | 00:53.66 | |
| 029 | H13-L1 | Jakob Andkjær | Denmark | 24.56 | 00:53.71 | |
| 030 | H12-L2 | Mario Todorović | Croatia | 24.98 | 00:53.72 | |
| 031 | H13-L6 | Simão Morgado | Portugal | 24.79 | 00:53.75 | |
| 032 | H12-L1 | Mathieu Fonteyn | Belgium | 25.40 | 00:53.78 | |
| 033 | H12-L3 | Ioan Stefan Gherghel | Romania | 25.26 | 00:53.86 | |
| 034 | H11-L5 | Rafael Muñoz Pérez | Spain | 24.75 | 00:53.91 | |
| 035 | H14-L1 | Todd Cooper | Great Britain | 25.08 | 00:54.00 | |
| 036 | H10-L3 | Guy Barnea | Israel | 25.29 | 00:54.25 | |
| 037 | H13-L4 | Christophe Lebon | France | 24.75 | 00:54.27 | |
| 038 | H11-L4 | Juan Veloz | Mexico | 25.53 | 00:54.33 | |
| 039 | H11-L2 | Pablo Marmolejo | Mexico | 25.36 | 00:54.34 | |
| 040 | H12-L5 | Jeremy Knowles | Bahamas | 25.44 | 00:54.42 | |
| 041 | H08-L3 | Damien Courtois | Switzerland | 24.68 | 00:54.44 | |
| 042 | H10-L5 | Jere Hård | Finland | 24.90 | 00:54.52 | |
| 043 | H11-L3 | Camilo Becerra | Colombia | 25.12 | 00:54.62 | |
| 044 | H10-L7 | Martin Verner | Czech Republic | 25.28 | 00:54.72 | |
| 045 | H12-L4 | Michal Rubáček | Czech Republic | 25.08 | 00:54.76 | |
| 046 | H16-L7 | Zhou Jiawei | China | 25.75 | 00:54.85 | |
| 047 | H13-L7 | Dominik Straga | Croatia | 25.15 | 00:54.90 | |
| 048 | H10-L8 | Oleg Lyashko | Uzbekistan | 25.49 | 00:55.07 | |
| 049 | H11-L8 | Julio Galofre | Colombia | 25.90 | 00:55.19 | |
| 050 | H11-L1 | Stanislav Kuzmin | Kazakhstan | 25.45 | 00:55.23 | |
| 051 | H11-L6 | Paulius Andrijauskas | Lithuania | 25.67 | 00:55.25 | |
| 052 | H11-L7 | Georgi Palazov | Bulgaria | 25.00 | 00:55.29 | |
| 053 | H09-L6 | Gordon Touw Ngie Tjouw | Suriname | 25.46 | 00:55.33 | |
| 054 | H09-L4 | Emilis Vaitkaitis | Lithuania | 24.96 | 00:55.39 | |
| 055 | H12-L8 | Daniel Bego | Malaysia | 25.88 | 00:55.41 | |
| 056 | H09-L3 | Ankur Poseria | India | 25.76 | 00:55.51 | |
| 057 | H09-L2 | Romāns Miloslavskis | Latvia | 25.58 | 00:55.54 | |
| 058 | H09-L5 | Wing Cheung Victor Wong | Macau | 25.91 | 00:55.64 | |
| 059 | H10-L6 | Mathias Gydesen | Denmark | 25.95 | 00:55.70 | |
| 060 | H10-L1 | Rustam Khudiyev | Kazakhstan | 25.29 | 00:55.73 | |
| 061 | H09-L1 | Hamidreza Mobarrez | Iran | 25.84 | 00:55.84 | |
| 062 | H08-L8 | Andy Wibowo | Indonesia | 25.61 | 00:55.88 | |
| 063 | H08-L2 | Garth Tune | South Africa | 25.52 | 00:56.02 | |
| 064 | H07-L7 | Adrien Perez | Switzerland | 25.42 | 00:56.04 | |
| 065 | H10-L4 | Pavels Kondrahins | Latvia | 25.39 | 00:56.08 | |
| 066 | H09-L8 | Jorge Arturo Arce Aita | Costa Rica | 25.90 | 00:56.14 | |
| 067 | H08-L7 | Aleksander Hetland | Norway | 25.70 | 00:56.23 | |
| 067 | H08-L1 | Emmanuel Crescimbeni | Peru | 26.33 | 00:56.23 | |
| 069 | H09-L7 | Basil Kaaki | Lebanon | 26.61 | 00:56.43 | |
| 070 | H08-L5 | Donny Budiarto Utomo | Indonesia | 26.63 | 00:56.54 | |
| 071 | H07-L4 | Radonyos Matjiur | Thailand | 26.98 | 00:56.84 | |
| 072 | H07-L5 | Miguel Navarro | Bolivia | 26.72 | 00:57.00 | |
| 073 | H07-L8 | Roy Felipe Barahona Fuente | Honduras | 26.78 | 00:57.34 | |
| 074 | H07-L2 | Xue-Wei Nicholas Tan | Singapore | 26.83 | 00:57.40 | |
| 075 | H08-L4 | Arjun Muralidharan | India | 26.50 | 00:57.46 | |
| 076 | H08-L6 | Nisic Nedim | Bosnia and Herzegovina | 26.59 | 00:57.60 | |
| 077 | H05-L6 | Petr Romashkin | Uzbekistan | 26.72 | 00:57.98 | |
| 078 | H06-L7 | Javier Hernandez Maradiaga | Honduras | 27.20 | 00:58.00 | |
| 079 | H06-L5 | Tze Kang Ng | Singapore | 27.10 | 00:58.02 | |
| 080 | H07-L3 | Bader Almuhana | Saudi Arabia | 26.99 | 00:58.07 | |
| 081 | H06-L3 | João Matias | Angola | 26.82 | 00:58.19 | |
| 082 | H06-L2 | Taki Mrabet | Tunisia | 26.69 | 00:58.28 | |
| 083 | H07-L1 | Goksu Bicer | Turkey | 26.02 | 00:58.36 | |
| 084 | H05-L2 | Jared Heine | Marshall Islands | 27.35 | 00:58.50 | |
| 085 | H06-L1 | Carlos Eduardo Gil | Peru | 27.32 | 00:58.62 | |
| 086 | H04-L5 | Khaly Ciss | Senegal | 27.52 | 00:59.13 | |
| 087 | H03-L4 | Morgan Locke | Virgin Islands | 27.26 | 00:59.16 | |
| 087 | H06-L6 | Moustafa Al-Saleh | Syria | 27.76 | 00:59.16 | |
| 089 | H07-L6 | Marco Camargo | Ecuador | 27.31 | 00:59.29 | |
| 090 | H04-L2 | Alejandro Madde | Bolivia | 28.16 | 00:59.64 | |
| 091 | H04-L6 | Nasir Ali | Pakistan | 28.37 | 1:00.01 | |
| 092 | H03-L3 | Rama Vyombo | Kenya | 27.91 | 1:00.27 | |
| 093 | H05-L7 | Sohaib Kalali | Syria | 28.24 | 1:00.35 | |
| 094 | H05-L3 | Nuno Rola | Angola | 27.98 | 1:00.59 | |
| 095 | H04-L8 | Erik Rajohnson | Madagascar | 27.73 | 1:00.65 | |
| 096 | H04-L3 | Eros Qama | Albania | 27.67 | 1:00.77 | |
| 097 | H02-L6 | Hamza Abdo | Palestine | 27.91 | 1:00.98 | |
| 098 | H06-L8 | Miro Krestevski | Macedonia | 28.16 | 1:01.04 | |
| 099 | H05-L5 | Bertrand Bristol | Seychelles | 28.19 | 1:01.21 | |
| 100 | H03-L2 | Battushig Enkhtaivan | Mongolia | 27.68 | 1:01.49 | |
| 101 | H04-L4 | Anas Hamadeh | Jordan | 28.02 | 1:01.68 | |
| 102 | H04-L7 | Luke Hall | Eswatini | 28.40 | 1:01.99 | |
| 103 | H05-L4 | Fernando Medrano Medina | Nicaragua | 27.82 | 1:02.03 | |
| 104 | H05-L8 | Aleksey Klimenko | Kyrgyzstan | 28.87 | 1:02.54 | |
| 105 | H02-L2 | Hernan Bonsembiante | Guam | 28.04 | 1:02.62 | |
| 106 | H03-L7 | Hisham Fadhul | Bahrain | 28.42 | 1:02.82 | |
| 107 | H04-L1 | Hong Nam Lei | Macau | 29.29 | 1:03.00 | |
| 108 | H03-L5 | Richard Randranandraina | Madagascar | 28.88 | 1:03.33 | |
| 109 | H03-L8 | Jean-Luc Augier | Saint Lucia | 28.65 | 1:03.36 | |
| 110 | H02-L3 | Daryl Harford | Grenada | 28.07 | 1:03.42 | |
| 111 | H01-L4 | Eric Chang | Malaysia | 28.83 | 1:03.54 | |
| 112 | H03-L1 | Walid Nasib Hilal Alkaabi | United Arab Emirates | 29.43 | 1:03.76 | |
| 113 | H03-L6 | Naji Askia Ferguson | Grenada | 28.20 | 1:04.00 | |
| 114 | H02-L4 | Zane Jordan | Zambia | 29.52 | 1:04.26 | |
| 115 | H02-L5 | Fadi Awesat | Palestine | 29.24 | 1:05.04 | |
| 116 | H02-L7 | Eli Ebenezer Wong | Northern Mariana Islands | 31.12 | 1:07.01 | |
| 117 | H02-L1 | Mohamed Sharif | Maldives | 33.43 | 1:16.84 | |
| 999-- | H06-L4 | Yellow Yeiyah | Nigeria | | DQ | |
| 999-- | H01-L3 | Abdul-Fatawu Moro | Ghana | | DNS | |
| 999-- | H05-L1 | Sunday Ayejo | Nigeria | | DNS | |
| 999-- | H10-L2 | Jacinto Ayala | Dominican Republic | | DNS | |
| 999-- | H13-L8 | Jernej Godec | Slovenia | | DNS | |