To finish a marathon (42.195 km) in 3 hours, you need to hold 4:16 per kilometre, a speed of 14.1 km/h, from start to finish.
| Km | Time |
|---|---|
| 5 | 21:20 |
| 10 | 42:40 |
| 15 | 1:03:59 |
| 20 | 1:25:19 |
| 21.0975Half | 1:30:00 |
| 25 | 1:46:39 |
| 30 | 2:07:59 |
| 35 | 2:29:18 |
| 40 | 2:50:38 |
| 42.195Finish | 3:00:00 |