| Final | time | +time | L | t.a. | Y | | 1. Harrison Dillard |  United States | 10.3s | | 6 | 10.5 | 25 | | 2. Barney Ewell | United States | 10.4s | +0.06s | 2 | 10.6 | 30 | | 3. Lloyd LaBeach |  Panama | 10.6s | +0.09s | 3 | 10.6 | 26 | | 4. Alastair McCorquodale |  Great Britain | 10.7s | +0.11s | 4 | | 22 | | 5. Mel Patton | United States | 10.7s | +0.17s | 1 | | 23 | | 6. Bailey McDonald | Great Britain | 10.9s | +0.31s | 5 | | 27 |
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| | Venue: Empire Stadium, London. | | Competitors: 65; Countries: 33 |
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| | | First 3 from each 2 semi-finals progressed to Final. |
| Semi 1 | time | +time | t.a. | Y | | 1. Harrison Dillard | United States | 10.5s | | 10.5 | 25 | | 2. Barney Ewell | United States | 10.5s | +0.03s | 10.5 | 30 | | 3. Alastair McCorquodale | Great Britain | 10.7s | +0.21s | 10.7 | 22 | | 4. John Bartram |  Australia | | +0.38s | | 23 | | 5. Juan López |  Uruguay | | +0.45s | | 22 | | 6. Morris Curotta | Australia | | +0.55s | | 19 |
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| Semi 2 | time | +time | t.a. | Y | | 1. Mel Patton | United States | 10.4s | | 10.6 | 23 | | 2. Lloyd LaBeach | Panama | 10.5s | +0.02s | | 26 | | 3. Bailey McDonald | Great Britain | 10.6s | +0.11s | | 27 | | 4. John Treloar | Australia | | +0.14s | | 20 | | 5. Rafael Fortún |  Cuba | | +0.22s | | 28 | | 6. Ken Jones | Great Britain | | +0.41s | | 26 |
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Dillard had been inspired as a 14 year-old when he met Owens after his
Berlin triumphs, and had become the best hurdler in the world.
Unfortunately, he fell in the hurdles at the US Trials. However, he did
qualify for the Olympic team in his second event, the 100m, behind the
100m and 100y world record holders, Ewell and Patton.
In the Olympic final Dillard, in the outside lane, got a superb start
and was never headed. In lane 1, Ewell – who had been world class
since 1937 – failed to see Dillard and crossed the line thinking he was
the winner. LaBeach just held off the surprising cricket specialist
McCorquodale, while Patton was a victim of the nerves which prevent-
ed him from ever running in a US championship. Timing shown is offi-
cial for the top three, and “adjusted” is the “tenth” electrical time as
conveyed by timekeeper Harry Hathway to ATFS president Bob
Sparks, with estimated times for all positions based on photo-finish dif-
ferentials. Dillard’s 10.5 could be anything between 10.41s and 10.50s.
| Quarter 1 | time | +time | Y | | 1. Harrison Dillard | United States | 10.4s | &s | 25 | | 2. Juan López | Uruguay | 10.6s | +0.24s | 22 | | 3. Ken Jones | Great Britain | 10.7s | +0.25s | 26 | | 4. Ivan Hausen |  Brazil | | +0.43s | 20 | | 5. Ted Haggis |  Canada | | +0.47s | | | 6. Nuno Morais |  Portugal | | +0.82s | 25 |
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| Quarter 2 | time | +time | t.a. | Y | | 1. Barney Ewell | United States | 10.5s | | 10.7 | 30 | | 2. Bailey McDonald | Great Britain | 10.6s | +0.20 | | 27 | | 3. Morris Curotta | Australia | 10.8s | +0.23 | | 19 | | 4. Georgie Lewis |  Trindad Tobago | | +0.34 | | 31 | | 5. Goldoványi Béla |  Hungary | | +0.41 | | 22 | | 6. Haukur Clausen |  Iceland | | +0.48 | | 19 |
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| Quarter 3 | time | +time | t.a. | Y | | 1. Mel Patton | United States | 10.4s | | 10.6 | 23 | | 2. Alastair McCorquodale | Great Britain | 10.5s | +0.04 | | 22 | | 3. John Bartram | Australia | 10.6s | +0.17 | | 23 | | 4. René Valmy |  France | | +0.22 | | 27 | | 5. Mario Fayos | Uruguay | | +0.48 | | 21 | | 6. Isidoor Van De Wiele |  Belgium | | +0.50 | | 23 |
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| Quarter 4 | time | +time | t.a. | Y | | 1. Lloyd LaBeach | Panama | 10.5s | &s | 10.7 | 26 | | 2. John Treloar | Australia | 10.5s | +0.04s | | 20 | | 3. Rafael Fortún | Cuba | 10.6s | +0.05s | | 28 | | 4. Aroldo da Silva | Brazil | | +0.34s | | 18 | | 5. Gerardo Bönnhoff |  Argentina | | +0.39s | | 22 | | 6. Eric Prabhakar |  India | | +0.56s | | 23 |
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| Heat 1 | time | +time | t.a. | Y | | 1. Barney Ewell | United States | 10.5s | &s | 10.7 | 30 | | 2. Alastair McCorquodale | Great Britain | 10.5s | +0.03 | | 22 | | 3. Les Laing |  Jamaica | 11.0s | +0.36 | | 23 | | 4. Angel García | Cuba | | +0.52 | | 28 | | 5. Nestor Jacono |  Malta | | +0.81 | | 23 |
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| Heat 2 | time | +time | t.a. | Y | | 1. Mel Patton | United States | 10.6s | | 10.7 | 23 | | 2. Ivan Hausen | Brazil | 10.9s | +0.24 | | 20 | | 3. Jim O'Brien | Canada | 10.9s | +0.42 | | | | 4. Fernando Lapuente | Argentina | | +0.46 | | 20 | | 5. Hector Gosset | Belgium | | +0.80 | | 21 | | 6. Guillermo Rodríguez |  Mexico | | +1.27 | | |
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| Heat 3 | time | +time | t.a. | Y | | 1. Lloyd LaBeach | Panama | 10.5s | | 10.7 | 26 | | 2. Béla Goldoványi | Hungary | 11.0s | +0.33 | | 22 | | 3. Frank Mahoney |  Bermuda | 11.8s | +1.24 | | |
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| Heat 4 | time | +time | t.a. | Y | | 1. Juan López | Uruguay| | 10.5s | | 10.7 | 22 | | 2. Ken Jones | Great Britain | 10.6s | +0.04 | | 26 | | 3. Jan Meijer |  Netherlands | 11.0s | +0.31 | | 27 | | 4. Reyes Máximo |  Peru | | +0.34 | | 19 | | 5. Finnbjörn Þorvaldsson | Iceland | | +0.53 | | 24 |
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| Heat 5 | time | +time | t.a. | Y | | 1. Harrison Dillard | United States | 10.4s | | 10.7 | 25 | | 2. Aroldo da Silva | Brazil | 10.6s | +0.24 | | 18 | | 3. Peter Bloch |  Norway | 11.1s | +0.50 | | 25 | | 4. Pol Braekman | Belgium | | +0.60 | | 28 |
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| Heat 6 | time | +time | t.a. | Y | | 1. Bailey McDonald | Great Britain | 10.5s | &s | 10.7 | 27 | | 2. Haukur Clausen | Iceland | 11.0s | +0.19s | | 19 | | 3. Abram van Heerden |  South Africa | 11.1s | +0.31s | | 20 | | 4. Carlos Silva |  Chile | | +0.38s | | 21 | | 5. Bernabe Lovina |  Philippines | | +0.62s | | 27 | | 6. Stanley Lines | Bermuda | | +0.99s | | |
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| Heat 7 | time | +time | t.a. | Y | | 1. John Treloar | Australia | 10.5s | | 10.6 | 20 | | 2. René Valmy | France | 10.8s | +0.20s | | 27 | | 3. György Csányi | Hungary | 11.1a | +0.51s | | 26 | | 4. Carlos Isaac | Argentina | | +0.64s | | 24 | | 5. Sayed Moukhtar |  Egypt | | +1.11s | | | | 6. Ali Salman |  Iraq | | +1.30s | | |
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| Heat 8 | time | +time | t.a. | Y | | 1. Rafael Fortún | Cuba | 10.7s | | 10.8 | 28 | | 2. John Bartram | Australia | 10.8s | +0.09 | | 23 | | 3. Basil McKenzie | Jamaica | 10.8s | +0.12 | | | | 4. Hélio da Silva | Brazil | | +0.29 | | 24 | | 5. Jo Zwaan | Netherlands | | +0.29 | | 25 |
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| Heat 9 | time | +time | t.a. | Y | | 1. Morris Curotta | Australia | 10.7s | | 10.8 | 19 | | 2. Gerardo Bönnhoff | Argentina | 10.8s | +0.03 | | 22 | | 3. Raúl Mazorra | Cuba | 11.1s | +0.34 | | 19 | | 4. Clausen Örn | Iceland | | +0.42 | | 19 | | 5. Raşit Öztaş |  Turkey | | +0.55 | | | | -. Perry Johnson | Bermuda | DQ | | | |
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| Heat 10 | time | +time | t.a. | Y | | 1. Georgie Lewis | Trinidad Tobago | 10.8s | | 11.0 | 31 | | 2. Ted Haggis | Canada | 10.9s | +0.09 | | | | 3. Walter Pérez | Uruguay | 11.0s | +0.13 | | 23 | | 4. Santiago Ferrando | Peru | | +0.19 | | 20 | | 5. Stefanos Petrakis |  Greece | | +0.62 | | 23 |
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| Heat 11 | time | +time | t.a. | Y | | 1. Isidoor Van De Wiele | Belgium | 10.8ws | | 11.1w | 23 | | 2. Nuno Morais | Portugal | 10.9ws | +0.03w | | 25 | | 3. Alberto Labarthe | Chile | 11.0ws | +0.06w | | 20 | | 4. Muhammad Sharif Butt |  Pakistan | | +0.13w | | 22 | | 5. Charles Thompson |  Guyana | | | | |
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| Heat 12 | time | +time | t.a. | Y | | 1. Mario Fayos | Uruguay | 11.0s | | 11.1 | 21 | | 2. Eric Prabhakar | India | 11.0s | +0.12 | | 23 | | 3. Bartha László | Hungary | 11.1s | +0.15 | | 23 | | 4. Jan Kleyn | Netherlands | | +0.26 | | 23 | | 5. Kemal Aksur | Turkey | | +0.35 | | 24 | | 6. Maung Sein Pe |  Burundi | | +0.68 | | | | -. Bally Étienne | France | DNF | | | 25 |
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