Grand Prix scores are a percentage of the world standard for your age and event. Sevenoaks uses three calculators:
- Club road — SAC’s own road-only tool, 2025 tables. Parkrun, 10ks, halves and the usual Grand Prix distances.
- Howard Grubb — the full 2025 road tables, every listed distance, plus a custom km if the race is in between.
- Masters Athletics — track and field, 2023 WMA factors (sprints, jumps, throws and walks).
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