| Name: | Lai, Derek |
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| Club: | |||
| Residence: | Edmonton, AB | ||
| Year of birth: | 1972 | (Cat. german: M50) | |
| Date of birth: | 00.00.0000 | (Cat. internat.: M50) | |
| Nationality: | CAN ![]() |
Canada | |
| RunnerID: | 391134 | ||
4 search results (4 Events, 200 km). (More)
| 2025 | 1 Event, 50 km (More) | ||||
|---|---|---|---|---|---|
| 14.06.2025 | Niagara Ultra 50 km (CAN) | 50km | |||
| 4:09:54 h | Lai, Derek | *Markham | Overall: 8 | M: 5 | Cat M50: 1 |
| 2022 | 2 Events, 100 km (More) | ||||
| 18.06.2022 | Niagara Ultra 50 km (CAN) | 50km | |||
| 8:02:19 h | Lai, Derek | *Toronto, ON | Overall: 116 | M: 66 | Cat M45: 8 |
| 18.06.2022 | Niagara Ultra 50 km (CAN) | 50km | |||
| 3:47:01 h | Lai, Derek | *Markham, ON | Overall: 3 | M: 3 | Cat M45: 1 |
| 2002 | 1 Event, 50 km (More) | ||||
| 25.05.2002 | Blackfoot Ultra 50 Km (CAN) | 50km | |||
| 5:09:10 h | Lai, Derek | *Edmonton, AB | Overall: 9 | M: 8 | Cat M23: 5 |
Personal bests
Your list of personal best performances only contains performances of races which can be included into rankings.
In brackets rank in yearly international/national rankings.
| PB | 2025 | 2022 | 2002 | |
|---|---|---|---|---|
| 50km | 3:47:01 |
4:09:54
(1885/4) |
3:47:01
(747/5) |
|
Comparison table
Comparison of performances in races with multiple participations
| 2025 | 2022 | 2002 | ||
|---|---|---|---|---|
| Niagara Ultra 50 km | 2 | 4:09:54 | 3:47:01 |


