swimShelby Costello
Personal records
| Event | Course | Best | Cut | Date | Meet |
|---|---|---|---|---|---|
| 50 Freestyle | SCY | 33.90 | +9.01s to Sectionals | 2019-12-13 | Lake Cumberland Middle School Invitationalvenue |
| 100 Freestyle | SCY | 1:31.00 | +36.91s to Sectionals | 2018-12-08 | Warren County Holiday Invitational 2018slow pool |
| 50 Backstroke | SCY | 41.52 | +12.93s to Sectionals | 2019-12-13 | Lake Cumberland Middle School Invitationalvenue |
| 50 Breaststroke | SCY | 46.26 | +12.67s to Sectionals | 2019-12-13 | Lake Cumberland Middle School Invitationalvenue |
| 100 Breaststroke | SCY | 1:57.22 | +46.33s to Sectionals | 2018-12-08 | Warren County Holiday Invitational 2018slow pool |
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.
Pool tags are a venue speed heuristic (median deviation of all swims there vs each swimmer's typical time) — see the venue page for the method.
Fastest relay legs
| Leg | Course | Time | Start | Relay | Date | Meet |
|---|---|---|---|---|---|---|
| 50 Freestyle | SCY | 37.64 | flat | 200 Free Relay | 2019-12-13 | Lake Cumberland Middle School Invitational |
| 50 Freestyle | SCY | 48.64 | flying | 200 Free Relay (leg 2) | 2018-12-08 | Warren County Holiday Invitational 2018 |
| 50 Freestyle | SCY | 29.32 | flying | 200 Medley Relay (leg 4) | 2018-12-08 | Warren County Holiday Invitational 2018 |
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 1:31.00
Front half 42.00s · back half 49.00s
100 Breaststroke SCY 1:57.22
Front half 55.98s · back half 61.24s
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.