swimKarson Koscheski
Personal records
| Event | Course | Best | Cut | Date | Meet |
|---|---|---|---|---|---|
| 50 Freestyle | SCY | 49.07 | +16.38s to B | 2022-12-04 | 2022 Stars of Winter venue |
| 100 Freestyle | SCY | 1:04.82 | BB+3.93s to A | 2025-01-01 | JTSC Fall Invitational |
| 200 Freestyle | SCY | 2:20.29 | BB+8.40s to A | 2026-01-01 | King Marlin Swim Club |
| 500 Freestyle | SCY | 6:09.99 | BB+16.60s to A | 2026-02-26 | 2026 OKS 14-Under Championship |
| 50 Backstroke | SCY | 58.95 | +22.36s to B | 2022-12-03 | 2022 Stars of Winter venue |
| 100 Backstroke | SCY | 1:20.91 | +3.72s to B | 2025-10-24 | AESC Halloween Meet 2025 - copied |
| 50 Breaststroke | SCY | 1:09.15 | +27.06s to B | 2022-12-04 | 2022 Stars of Winter venue |
| 100 Breaststroke | SCY | 1:32.32 | +3.63s to B | 2025-10-24 | AESC Halloween Meet 2025 - copied |
| 100 Individual Medley | SCY | 1:41.92 | 2023-11-10 | Gobbler Invitational | |
| 50 Freestyle | SCM | 49.79 | +13.70s to B | 2023-02-12 | OKS DII SCY West Championships venue |
| 100 Freestyle | SCM | 1:53.50 | +35.01s to B | 2023-01-08 | SwimTulsa Race Into the New Year Invite venue |
| 200 Freestyle | SCM | 3:57.14 | +67.15s to B | 2023-02-10 | OKS DII SCY West Championships venue |
| 50 Backstroke | SCM | 1:00.99 | +20.60s to B | 2023-02-12 | OKS DII SCY West Championships venue |
| 100 Backstroke | SCM | 2:18.62 | +53.33s to B | 2023-01-07 | SwimTulsa Race Into the New Year Invite venue |
| 50 Breaststroke | SCM | 1:11.95 | +25.46s to B | 2023-02-11 | OKS DII SCY West Championships venue |
| 50 Butterfly | SCM | 1:09.98 | +30.19s to B | 2023-02-11 | OKS DII SCY West Championships venue |
| 100 Individual Medley | SCM | 2:21.12 | 2023-01-08 | SwimTulsa Race Into the New Year Invite venue | |
| 100 Freestyle | LCM | 1:13.10 | BB+3.51s to A | 2026-06-26 | 2026 KMSC Firecracker |
| 200 Freestyle | LCM | 2:39.18 | BB+8.79s to A | 2026-06-26 | 2026 KMSC Firecracker |
| 50 Backstroke | LCM | 57.21 | +14.52s to B | 2023-04-15 | Oklahoma Sprint Festival 2023 slow pool |
| 50 Breaststroke | LCM | 1:16.34 | +28.45s to B | 2023-04-15 | Oklahoma Sprint Festival 2023 slow pool |
| 50 Butterfly | LCM | 1:10.89 | +30.90s to B | 2023-04-15 | Oklahoma Sprint Festival 2023 slow pool |
| 100 Butterfly | LCM | 1:34.82 | +7.43s to B | 2026-06-26 | 2026 KMSC Firecracker |
Cuts are USA Swimming single-age motivational standards (B → AAAA) at age 14.
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 | SCM | 54.29 | flying | 200 Free Relay (leg 2) | 2023-01-08 | SwimTulsa Race Into the New Year Invite |
| 50 Breaststroke | SCM | 1:15.45 | flying | 200 Medley Relay (leg 2) | 2023-01-07 | SwimTulsa Race Into the New Year Invite |
Reconstructed from relay split marks. Flat = lead-off (comparable to individual times); flying starts run ~0.5–0.7s fast and are not PRs.
IMX / IMR
IMX 13-14 · SCY
583 points (1/6 events — incomplete)
| Event | Time | Points |
|---|---|---|
| 500 FR SCY | 6:09.99 | 583 |
| 200 BK SCY | — | 0 |
| 200 BR SCY | — | 0 |
| 200 FL SCY | — | 0 |
| 200 IM SCY | — | 0 |
| 400 IM SCY | — | 0 |
IMR 13-14 · SCY
1290 points (3/5 events — incomplete)
| Event | Time | Points |
|---|---|---|
| 200 FR SCY | 2:20.29 | 555 |
| 100 BK SCY | 1:20.91 | 362 |
| 100 BR SCY | 1:32.32 | 373 |
| 100 FL SCY | — | 0 |
| 200 IM SCY | — | 0 |
Scored against AAAA motivational base times: ordering is exact, absolute points run ~25% above the official USA Swimming scale.
PR splits
100 Freestyle SCY 1:04.82
Front half 37.05s · back half 27.77s
200 Freestyle SCY 2:20.29
Front half 67.61s · back half 72.68s
100 Backstroke SCY 1:20.91
Front half 39.27s · back half 41.64s
100 Breaststroke SCY 1:32.32
Front half 43.51s · back half 48.81s
100 Individual Medley SCY 1:41.92 split/total mismatch
Front half 48.96s · back half 52.96s
100 Freestyle SCM 1:53.50
Front half 54.38s · back half 59.12s
200 Freestyle SCM 3:57.14
Front half 112.31s · back half 124.83s
100 Backstroke SCM 2:18.62
Front half 64.44s · back half 74.18s
100 Individual Medley SCM 2:21.12
Front half 69.84s · back half 71.28s
100 Freestyle LCM 1:13.10
Front half 35.05s · back half 38.05s
200 Freestyle LCM 2:39.18
Front half 74.14s · back half 85.04s
100 Butterfly LCM 1:34.82
Front half 40.69s · back half 54.13s
Progression
Faster times are higher. One card per event, all courses & history.