2009 World Championships in Athletics – Men's 4 × 100 metres relay
|Events at the
2009 World Championships
|100 m hurdles||women|
|110 m hurdles||men|
|400 m hurdles||men||women|
|4×100 m relay||men||women|
|4×400 m relay||men||women|
|20 km walk||men||women|
|50 km walk||men|
The men's 4 x 100 metres relay at the 2009 World Championships in Athletics took place at the Olympic Stadium on August 21 and August 22. The two main contenders for the event were the reigning World Champions, the United States, and the reigning Olympic Champions, Jamaica. Jamaica holds the world record at 37.10, established at the 2008 Summer Olympics in Beijing, while the United States enters with the 2009 overall season best 37.85.
* Runners who participated in the heats only and received medals.
Prior to the competition, the following records were as follows.
No new world or championship record was set during this competition.
|August 21, 2009||19:30||Heats|
|August 22, 2009||20:50||Final|
The first 2 of each heat (Q) plus the 2 fastest times (q) qualify.
Key: DNF = Did not finish, DNS = Did not start, DQ = Disqualified, Q = qualification by place in heat, q = qualification by overall place, SB = Seasonal best
|Jamaica||Usain Bolt, Michael Frater, Steve Mullings, Asafa Powell||37.31||CR|
|Trinidad and Tobago||Darrel Brown, Marc Burns, Emmanuel Callander, Richard Thompson||37.62||NR|
|Great Britain||Simeon Williamson, Tyrone Edgar, Marlon Devonish, Harry Aikines-Aryeetey||38.02||SB|
|4||Japan||Masashi Eriguchi, Naoki Tsukahara, Shinji Takahira, Kenji Fujimitsu||38.30||SB|
|5||Canada||Sam Effah, Oluseyi Smith, Jared Connaughton, Bryan Barnett||38.39||SB|
|6||Italy||Roberto Donati, Simone Collio, Emanuele Di Gregorio, Fabio Cerutti||38.54|
|7||Brazil||Vicente de Lima, Sandro Viana, Basílio de Moraes, José Carlos Moreira||38.56||SB|
|8||France||Ronald Pognon, Martial Mbandjock, Eddy De Lepine, Christophe Lemaitre||39.21|
Key: CR = Championship record, NR = National record, SB = Seasonal best
- Kessel, Anna (August 21, 2009), "United States relay team disqualified at Athletics World Championships", The Guardian