The book
League records
Best-ever observed time per event across all loaded seasons. 10 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
10
matching your filter
Oldest standing
15y
Ella Eastin, 2010
Age 13-14
| Event | Holder | Time | Margin | Set |
|---|---|---|---|---|
| Girls 13-14 100 IM | Anna HeumannDF | 59.22 | +0.43s | |
| Girls 13-14 50 Backstroke | Ella EastinNPR | 27.30 | +0.19s | |
| Girls 13-14 50 Breaststroke | Anna HeumannDF | 30.37 | +0.86s | |
| Girls 13-14 50 Butterfly | Zara MasudWP | 25.80 | — | |
| Girls 13-14 50 Freestyle | Holly FishburnWB | 24.50 | +0.02s | |
| Boys 13-14 100 IM | Nathan WuSI | 52.70 | +0.91s | |
| Boys 13-14 50 Backstroke | Nathan WuSI | 24.51 | +0.41s | |
| Boys 13-14 50 Breaststroke | Nathan WuSI | 26.86 | +0.69s | |
| Boys 13-14 50 Butterfly | Chris LeungNPF | 23.14 | +0.47s | |
| Boys 13-14 50 Freestyle | Jacob WangDF | 21.03 | +0.93s |
3 records set or matched in the most recent season.