swimCJ Koslin
Personal records
| Event | Course | Best | Cut | Date | Meet |
|---|---|---|---|---|---|
| 50 Freestyle | SCY | 26.06 | AA+0.67s to AAA·+0.47s to Sectionals | 2026-02-21 | 2026 SES Region 1 & 8 and Under Championships |
| 100 Freestyle | SCY | 57.04 | AA+1.95s to AAA·+1.55s to Sectionals | 2026-01-16 | 2026 TYR Mardi Gras Invite |
| 200 Freestyle | SCY | 2:10.23 | BB+0.54s to A·+10.54s to Sectionals | 2025-11-07 | TNAQ 2025 FALL INVITATIONAL |
| 500 Freestyle | SCY | 5:48.43 | A+13.14s to AA·+30.74s to Sectionals | 2025-12-05 | 2025 Beaman Toyota Meet of Champs |
| 1000 Freestyle | SCY | 12:03.61 | BB+3.72s to A·+56.82s to Sectionals | 2025-11-07 | TNAQ 2025 FALL INVITATIONAL |
| 50 Backstroke | SCY | 31.33 | BB+0.54s to A·+1.94s to Sectionals | 2026-01-16 | 2026 TYR Mardi Gras Invite |
| 100 Backstroke | SCY | 1:10.92 | B+0.43s to BB·+8.53s to Sectionals | 2025-11-07 | TNAQ 2025 FALL INVITATIONAL |
| 200 Backstroke | SCY | 2:33.70 | B+0.61s to BB·+17.01s to Sectionals | 2025-11-07 | TNAQ 2025 FALL INVITATIONAL |
| 50 Breaststroke | SCY | 34.38 | AA+1.49s to AAA·Sectionals ✓+4.59s to Futures | 2026-01-16 | 2026 TYR Mardi Gras Invite |
| 100 Breaststroke | SCY | 1:14.26 | A+2.37s to AA·+1.57s to Sectionals | 2026-01-16 | 2026 TYR Mardi Gras Invite |
| 200 Breaststroke | SCY | 2:46.23 | BB+4.94s to A·+6.04s to Sectionals | 2025-02-15 | 2025 SES Region 1 & 8 and Under Championships |
| 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·+58.21s to Sectionals | 2024-01-12 | 2026 TYR Mardi Gras Invite |
| 50 Freestyle | LCM | 29.67 | AA+0.68s to AAA·+0.58s to Sectionals | 2026-04-24 | 2026 Strong Tower Invite |
| 100 Freestyle | LCM | 1:05.11 | AA+2.62s to AAA·+2.22s to Sectionals | 2026-06-04 | 2026 Beaman Toyota Firecracker Invite |
| 200 Freestyle | LCM | 2:25.22 | A+3.53s to AA·+9.83s to Sectionals | 2026-06-04 | 2026 Beaman Toyota Firecracker Invite |
| 400 Freestyle | LCM | 5:10.58 | A+12.49s to AA·+24.79s to Sectionals | 2026-06-04 | 2026 Beaman Toyota Firecracker Invite |
| 1500 Freestyle | LCM | 21:33.05 | BB+65.56s to A·+163.66s to Sectionals | 2026-04-24 | 2026 Strong Tower Invite |
| 50 Backstroke | LCM | 55.85 | +13.56s to B·+22.06s to Sectionals | 2021-07-09 | Ensworth July Invitational |
| 100 Backstroke | LCM | 1:22.18 | B+0.19s to BB·+10.69s to Sectionals | 2025-06-06 | 2025 Excel Firecracker Invite |
| 50 Breaststroke | LCM | 39.25 | A+0.56s to AA·Sectionals ✓+4.46s to Futures | 2026-06-04 | 2026 Beaman Toyota Firecracker Invite |
| 100 Breaststroke | LCM | 1:28.47 | BB+2.58s to A·+5.78s to Sectionals | 2026-06-04 | 2026 Beaman Toyota Firecracker Invite |
| 200 Breaststroke | LCM | 3:13.10 | BB+7.31s to A·+12.71s to Sectionals | 2025-05-16 | 2025 Excel May Open |
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
1993 points (4/6 events — incomplete)
| Event | Time | Points |
|---|---|---|
| 500 FR SCY | 5:48.43 | 643 |
| 200 BK SCY | 2:33.70 | 496 |
| 200 BR SCY | 2:46.23 | 590 |
| 200 IM SCY | 3:14.20 | 264 |
| 200 FL SCY | — | 0 |
| 400 IM SCY | — | 0 |
IMR 15-16 · SCY
2044 points (4/5 events — incomplete)
| Event | Time | Points |
|---|---|---|
| 200 FR SCY | 2:10.23 | 632 |
| 100 BK SCY | 1:10.92 | 494 |
| 100 BR SCY | 1:14.26 | 654 |
| 200 IM SCY | 3:14.20 | 264 |
| 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
200 Freestyle SCY 2:10.23
Front half 63.25s · back half 66.98s
1000 Freestyle SCY 12:03.61 RT 0.76s
Front half 401.65s · back half 321.96s
100 Backstroke SCY 1:10.92 RT 0.72s
Front half 34.61s · back half 36.31s
200 Backstroke SCY 2:33.70 RT 0.75s
Front half 75.01s · back half 78.69s
200 Breaststroke SCY 2:46.23 split/total mismatch
Front half 41.70s · back half 124.53s
100 Backstroke LCM 1:22.18 split/total mismatch
Front half 39.79s · back half 42.39s
200 Breaststroke LCM 3:13.10 split/total mismatch
Reaction time
From electronically-timed starts only (~2% of corpus swims carry a reaction time). PRs with a recorded reaction show an RT chip in the splits section above.
Progression
Faster times are higher. One card per event, all courses & history.