| 1 | A | B | C | D | E | F |
| --- | --- | --- | --- | --- | --- | --- |
| 2 | 1921 Isle of Man TT - Senior 500 cc Race |  |  |  |  |  |
| 3 | Pos | Rider | Machine | Time | Speed | Laps |
| 4 | 1 | United Kingdom Howard R Davies | AJS | 4.09.22 | 54.49 mph (87.69 km/h) | 6 |
| 5 | 2 | United Kingdom Freddie W Dixon | Indian | 4.11.25 | 54.02 mph (86.94 km/h) | 6 |
| 6 | 3 | United Kingdom Bert le Vack | Indian | 4.12.06 | 53.91 mph (86.76 km/h) | 6 |

Question: Who won the 1921 Isle of Man TT Senior race and by how much compared to the second and third place?
Answer: The 1921 Isle of Man TT Senior race was won by Howard Davies, by a margin of 2 minutes and 3 seconds from Freddie Dixon, and Bert Le Vack, in 4 hours, 9 minutes and 22 seconds, at a speed of 54.49 mph (87.69 km/h).