The Men's 110 metres hurdles at the 2011 World Championships in Athletics was held at the Daegu Stadium on August 28 and 29.

Summary The final featured the three fastest 110 hurdlers in history. World Record Holder Dayron Robles took an early lead but was being passed by former record holder Liu Xiang. Between the last two hurdles, Robles' right arm backswing caught Liu's oncoming left arm. Liu hit the tenth hurdle, with a second arm collision with Robles, slowing Liu enough to finish in third. Robles crossed the finish line first, but after the race, the Chinese team protested and Robles was disqualified under IAAF Rule 163.2 for obstruction, giving the championship to second finisher Jason Richardson. Andy Turner was separated from David Oliver in a photo finish for the bronze medal, both receiving the same time. 5th place in the race was also so close the photo could not separate the two competitors.

Medalists GoldSilverBronzeJason RichardsonLiu XiangAndy Turner

Records World record12.87Ostrava, Czech RepublicJune 12, 2008Championship record12.91Stuttgart, GermanyAugust 20, 1993World leading12.94Eugene, United StatesJune 4, 2011African record13.26Heusden, NetherlandsJuly 14, 2001Asian record12.88Lausanne, SwitzerlandJuly 11, 2006North, Central American and Caribbean record12.87Ostrava, Czech RepublicJune 12, 2008South American record13.29Lisbon, PortugalJune 13, 2004European record12.91Stuttgart, GermanyAugust 20, 1993Oceanian record13.29Gothenburg, SwedenAugust 11, 1995

Qualification standards A timeB time 13.52 13.60

Schedule Date Time RoundAugust 28, 2011 09:50 HeatsAugust 29, 2011 19:00 SemifinalsAugust 29, 2011 21:25 Final

Results KEY:qFastest non-qualifiersQQualifiedNRNational recordPBPersonal bestSBSeasonal best

Heats Qualification: First 3 in each heat (Q) and the next 4 fastest (q) advance to the semifinals.

Wind:Heat 1: +1.0 m/s, Heat 2: −0.2 m/s, Heat 3: +1.4 m/s, Heat 4: −0.3 m/s Rank Heat Name Nationality Time Notes 1 2 Jason Richardson 13.19 Q 2 1 Liu Xiang 13.20 Q 3 3 David Oliver 13.27 Q 4 2 Dwight Thomas 13.31 Q 5 1 Andy Turner 13.32 Q 6 4 Aries Merritt 13.36 Q 7 4 Dayron Robles 13.42 Q 8 3 Jiang Fan 13.47 Q, PB 8 3 Andrew Riley 13.47 Q 10 3 Dimitri Bascou 13.51 q 11 3 William Sharman 13.52 q 12 1 Willi Mathiszik 13.53 Q 12 1 Richard Phillips 13.53 q 14 2 Ronald Forbes 13.54 Q 15 4 Paulo Villar 13.55 Q 15 4 Shi Dongpeng 13.55 Q 17 4 Erik Balnuweit 13.56 18 1 Ryan Brathwaite 13.57 19 2 Konstadinos Douvalidis 13.59 20 3 Héctor Cotto 13.60 21 4 Emanuele Abate 13.63 21 4 Othmane Hadj Lazib 13.63 23 2 Lawrence Clarke 13.65 24 2 Alexander John 13.68 25 1 Sergey Shubenkov 13.70 26 4 Park Tae-Kyong 13.83 27 3 Lehann Fourie 13.86 28 1 Andreas Kundert 13.87 29 2 Dominik Bochenek 13.96 30 2 Balázs Baji 14.06 31 1 Ahmad Hazer 14.42 32 3 Kim Fai Iong 15.35

Semifinals Qualification: First 3 in each heat (Q) and the next 2 fastest (q) advance to the final.

Wind:Heat 1: −1.4 m/s, Heat 2: −1.6 m/s Rank Heat Name Nationality Time Notes 1 2 Jason Richardson 13.11 Q 2 1 Liu Xiang 13.31 Q 3 1 Dayron Robles 13.32 Q 4 1 Aries Merritt 13.32 Q 5 2 David Oliver 13.40 Q 6 1 Andy Turner 13.44 q 7 2 William Sharman 13.51 Q 8 2 Dwight Thomas 13.56 q 9 2 Shi Dongpeng 13.57 10 1 Dimitri Bascou 13.62 11 2 Ronald Forbes 13.67 12 2 Jiang Fan 13.71 13 1 Paulo Villar 13.73 14 2 Andrew Riley 13.75 15 1 Richard Phillips 13.76 16 1 Willi Mathiszik 13.81

Final Wind: −1.1 m/s Rank Lane Name Nationality Time Notes 3 Jason Richardson 13.16 6 Liu Xiang 13.27 1 Andy Turner 13.44 13.432 4 4 David Oliver 13.44 13.440 5 7 Aries Merritt 13.67 5 2 William Sharman 13.67 8 Dwight Thomas 5 Dayron Robles 13.14

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