swimCJ Koslin
Personal records
| Event | Course | Best | Cut | Date | Meet |
|---|---|---|---|---|---|
| 50 Freestyle | SCY | 26.18 | AA+0.79s to AAA·+1.29s to Sectionals | 2026-01-16 | 2026 TYR Mardi Gras Invite |
| 100 Freestyle | SCY | 57.04 | AA+1.95s to AAA·+2.95s to Sectionals | 2026-01-16 | 2026 TYR Mardi Gras Invite |
| 500 Freestyle | SCY | 5:48.92 | A+13.63s to AA·+39.03s to Sectionals | 2026-01-16 | 2026 TYR Mardi Gras Invite |
| 1000 Freestyle | SCY | 12:19.13 | BB+19.24s to A·+88.64s to Sectionals | 2026-01-16 | 2026 TYR Mardi Gras Invite |
| 50 Backstroke | SCY | 31.33 | BB+0.54s to A·+2.74s to Sectionals | 2026-01-16 | 2026 TYR Mardi Gras Invite |
| 100 Backstroke | SCY | 1:37.29 | +21.40s to B·+36.50s to Sectionals | 2023-10-21 | 2025 SE Southeastern Winter SC Championships |
| 50 Breaststroke | SCY | 34.38 | AA+1.49s to AAA·+0.79s to Sectionals | 2026-01-16 | 2026 TYR Mardi Gras Invite |
| 100 Breaststroke | SCY | 1:14.26 | A+2.37s to AA·+3.37s to Sectionals | 2026-01-16 | 2026 TYR Mardi Gras Invite |
| 200 Breaststroke | SCY | 3:02.81 | B+8.12s to BB·+26.52s to Sectionals | 2024-01-12 | 2026 TYR Mardi Gras Invite |
| 100 Individual Medley | SCY | 1:37.82 | 2023-10-21 | 2025 SE Southeastern Winter SC Championships | |
| 200 Individual Medley | SCY | 3:14.20 | +25.31s to B·+61.61s to Sectionals | 2024-01-12 | 2026 TYR Mardi Gras Invite |
| 100 Freestyle | LCM | 1:54.34 | +34.85s to B·+53.05s to Sectionals | 2022-04-23 | All American Swim LC Spring Classic |
| 50 Backstroke | LCM | 55.85 | +13.56s to B·+22.96s to Sectionals | 2021-07-09 | Ensworth July Invitational |
| 100 Backstroke | LCM | 1:57.87 | +29.58s to B·+48.08s to Sectionals | 2021-07-09 | Ensworth July Invitational |
| 50 Breaststroke | LCM | 55.61 | +8.52s to B·+17.32s to Sectionals | 2022-04-23 | All American Swim LC Spring Classic |
| 100 Breaststroke | LCM | 2:03.25 | +23.06s to B·+42.66s to Sectionals | 2021-07-09 | Ensworth July Invitational |
Cuts are USA Swimming single-age motivational standards (B → AAAA) at age 15.
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.
IMX / IMR
IMX 15-16 · SCY
1348 points (3/6 events — incomplete)
| Event | Time | Points |
|---|---|---|
| 500 FR SCY | 5:48.92 | 640 |
| 200 BR SCY | 3:02.81 | 444 |
| 200 IM SCY | 3:14.20 | 264 |
| 200 BK SCY | — | 0 |
| 200 FL SCY | — | 0 |
| 400 IM SCY | — | 0 |
IMR 15-16 · SCY
1109 points (3/5 events — incomplete)
| Event | Time | Points |
|---|---|---|
| 100 BK SCY | 1:37.29 | 191 |
| 100 BR SCY | 1:14.26 | 654 |
| 200 IM SCY | 3:14.20 | 264 |
| 200 FR SCY | — | 0 |
| 100 FL 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 LCM 1:54.34
Front half 50.21s · back half 64.13s
100 Backstroke LCM 1:57.87 split/total mismatch
Front half 56.03s · back half 61.84s
100 Breaststroke LCM 2:03.25 split/total mismatch
Front half 60.58s · back half 62.67s
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.