The book
League records
Best-ever observed time per event across all loaded seasons. 5 events with at least one recorded swim matching your filter.
How records work here
Each entry is the fastest legal time ever recorded for that event in the loaded data — across every ISL Championship PDF we've parsed. Records carrying multiple seasons of daylight get a Standing chip; records set this season get New. ISL is the ultimate authority on the official book — we display what the published results show.
Records in book
5
matching your filter
Oldest standing
13y
Sydney Okubo, 2012
Age 11-12
| Event | Holder | Time | Margin | Set |
|---|---|---|---|---|
| Girls 11-12 100 IM | Anna HeumannDF | 1:00.08 | +2.90s | |
| Girls 11-12 50 Backstroke | Sydney OkuboWB | 28.70 | +0.16s | |
| Girls 11-12 50 Breaststroke | Anna HeumannDF | 31.00 | +0.86s | |
| Girls 11-12 50 Butterfly | Erin LiDF | 26.45 | +1.09s | |
| Girls 11-12 50 Freestyle | Ariel LinQH | 25.08 | +0.38s |
3 records set or matched in the most recent season.