Stef Heerkens
Independiente · Netherlands
Est. age ≈ 30 (low confidence) · Compare
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60.7%
Runner Score
Local
Local
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 | 1:35:04 | 4:30 | 60.7% | Generali Maraton Malaga 2024 | |
| Marathon | 3:43:44 | 5:18 | 54.1% | Zurich Marató Barcelona 2025 |
Full Race History
| Date | Race | Category | Pos | Time | Age Grade |
|---|---|---|---|---|---|
| Zurich Marató Barcelona · Marathon | Senior M | 9172 | 3:43:44 | 54.1% | |
| Generali Maraton Malaga · Half Marathon | Senior M | 860 | 1:35:04 | 60.7% |
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