Gerard Sieben
No club · Netherlands
Est. age ≈ 57 (medium confidence) · Compare
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53.5%
Runner Score
Recreational
Recreational
Age Grade compares a time to the world-best standard for that age, sex and distance, so performances at different distances and ages are directly comparable. 100% is world-record level.
Personal Bests
| Distance | Time | Pace /km | Age Grade | Race | Date |
|---|---|---|---|---|---|
| Half Marathon | 2:14:45 | 6:23 | 53.5% | XXV Movistar Madrid Medio Maraton 2026 | |
| 22K | 2:09:43 | 5:54 | - | Ibiza Marathon 2026 |
Full Race History
| Date | Race | Category | Pos | Time | Age Grade |
|---|---|---|---|---|---|
| Ibiza Marathon · 22K | M55 | 905 | 2:09:43 | - | |
| XXV Movistar Madrid Medio Maraton · Half Marathon | M55 | 17737 | 2:14:45 | 53.5% |
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