swimKathryn Costello
Personal records
| Event | Course | Best | Cut | Date | Meet |
|---|---|---|---|---|---|
| 50 Freestyle | SCY | 37.90 | +13.11s to Sectionals | 2022-01-14 | 2022 MR LIE Winterfest Swim Meet |
| 100 Freestyle | SCY | 1:12.80 | +19.71s to Sectionals | 2026-01-31 | 2026 MR OB GCHSAA A Championship Meet |
| 50 Backstroke | SCY | 42.51 | +18.12s to US Open | 2022-01-14 | 2022 MR LIE Winterfest Swim Meet |
| 50 Breaststroke | SCY | 49.49 | +21.50s to US Open | 2021-11-05 | 2021 MR LIE Fall Kickoff Invitational |
| 100 Breaststroke | SCY | 1:24.55 | +16.36s to Sectionals | 2022-01-14 | 2022 MR LIE Winterfest Swim Meet |
| 200 Individual Medley | SCY | 3:11.33 | +60.64s to Sectionals | 2026-01-31 | 2026 MR OB GCHSAA A Championship Meet |
| 50 Breaststroke | LCM | 47.99 | +14.80s to US Open | 2022-05-21 | 2022 MR SSC TYR A-May-Zing Races LCM Invite |
National cuts (Sectionals → Nationals) are the current-season meet qualifying times for the swimmer's zone and age group; ✓ marks the hardest cut already achieved.
Fastest relay legs
| Leg | Course | Time | Start | Relay | Date | Meet |
|---|---|---|---|---|---|---|
| 50 Freestyle | SCY | 26.23 | flying | 200 Free Relay (leg 4) | 2025-10-04 | 2025 MR QNS Hello Brooklyn Invitational |
Reconstructed from relay split marks. Flat = lead-off (comparable to individual times); flying starts run ~0.5–0.7s fast and are not PRs.
PR splits
100 Freestyle SCY 1:12.80
Front half 34.65s · back half 38.15s
200 Individual Medley SCY 3:11.33 split/total mismatch
Front half 96.66s · back half 94.67s
Swim history
Every recorded swim, newest first
| Date | Event | Course | Time | Age | Round | Meet |
|---|
Individual swims with a recorded date and time — including disqualifications — plus reconstructed relay legs (marked). Assembled in the browser from this page’s data.
Progression
Faster times are higher. One card per event, all courses & history.