swimJaewon Koh
Personal records
| Event | Course | Best | Cut | Date | Meet |
|---|---|---|---|---|---|
| 100 Freestyle | SCY | 53.36 | A+1.37s to AA·+5.07s to Sectionals | 2026-10-17 | 2026 HSA Fran Norris Meetvenue |
| 200 Freestyle | SCY | 1:56.13 | A+2.54s to AA·+10.34s to Sectionals | 2026-10-18 | 2026 HSA Fran Norris Meetvenue |
| 500 Freestyle | SCY | 5:23.83 | BB+1.24s to A·+37.74s to Sectionals | 2025-11-01 | 2025 SwimMAC Carolina vs. Dynamo AG Dualvenue |
| 100 Backstroke | SCY | 1:00.25 | BB+0.66s to A·+5.16s to Sectionals | 2025-11-01 | 2025 SwimMAC Carolina vs. Dynamo AG Dualvenue |
| 200 Backstroke | SCY | 2:12.46 | BB+2.37s to A·+10.17s to Sectionals | 2025-11-02 | 2025 SwimMAC Carolina vs. Dynamo AG Dualvenue |
| 100 Breaststroke | SCY | 1:15.76 | B+2.77s to BB·+13.07s to Sectionals | 2026-10-18 | 2026 HSA Fran Norris Meetvenue |
| 200 Individual Medley | SCY | 2:17.05 | BB+4.86s to A·+17.66s to Sectionals | 2025-11-01 | 2025 SwimMAC Carolina vs. Dynamo AG Dualvenue |
| 400 Individual Medley | SCY | 4:56.82 | BB+12.63s to A·+44.83s to Sectionals | 2025-11-02 | 2025 SwimMAC Carolina vs. Dynamo AG Dualvenue |
| 100 Freestyle | LCM | 1:08.14 | B+0.65s to BB·+12.85s to Sectionals | 2024-07-20 | 2024 GA AG LC Championship July 18-21 2024slow pool |
| 200 Freestyle | LCM | 2:25.39 | BB+8.20s to A·+24.50s to Sectionals | 2024-07-19 | 2024 GA AG LC Championship July 18-21 2024slow pool |
| 400 Freestyle | LCM | 5:06.16 | BB+14.07s to A·+47.07s to Sectionals | 2024-07-21 | 2024 GA AG LC Championship July 18-21 2024slow pool |
| 50 Backstroke | LCM | 35.62 | BB+2.43s to A·+5.43s to Sectionals | 2024-07-20 | 2024 GA AG LC Championship July 18-21 2024slow pool |
| 100 Backstroke | LCM | 1:16.35 | B+0.96s to BB·+11.86s to Sectionals | 2024-07-21 | 2024 GA AG LC Championship July 18-21 2024slow pool |
| 200 Backstroke | LCM | 2:46.61 | B+2.92s to BB·+25.92s to Sectionals | 2024-07-19 | 2024 GA AG LC Championship July 18-21 2024slow pool |
| 50 Breaststroke | LCM | 41.99 | B+2.40s to BB·+7.80s to Sectionals | 2024-07-21 | 2024 GA AG LC Championship July 18-21 2024slow pool |
| 50 Butterfly | LCM | 34.92 | B+1.03s to BB·+7.13s to Sectionals | 2024-07-19 | 2024 GA AG LC Championship July 18-21 2024slow pool |
| 200 Individual Medley | LCM | 2:49.35 | B+3.36s to BB·+31.66s to Sectionals | 2024-07-20 | 2024 GA AG LC Championship July 18-21 2024slow pool |
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.
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 | 24.81 | flying | 200 Free Relay (leg 2) | 2025-11-01 | 2025 SwimMAC Carolina vs. Dynamo AG Dual |
| 50 Freestyle | LCM | 29.14 | flying | 200 Free Relay (leg 3) | 2024-07-20 | 2024 GA AG LC Championship July 18-21 2024 |
| 100 Freestyle | LCM | 1:07.87 | flying | 400 Free Relay (leg 3) | 2024-07-19 | 2024 GA AG LC Championship July 18-21 2024 |
| 50 Backstroke | LCM | 35.41 | flat | 200 Medley Relay | 2024-07-20 | 2024 GA AG LC Championship July 18-21 2024 |
| 100 Backstroke | LCM | 1:16.91 | flat | 400 Medley Relay | 2024-07-21 | 2024 GA AG LC Championship July 18-21 2024 |
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 15-16 · SCY
2306 points (4/6 events — incomplete)
| Event | Time | Points |
|---|---|---|
| 500 FR SCY | 5:23.83 | 621 |
| 200 BK SCY | 2:12.46 | 583 |
| 200 IM SCY | 2:17.05 | 563 |
| 400 IM SCY | 4:56.82 | 539 |
| 200 BR SCY | — | 0 |
| 200 FL SCY | — | 0 |
IMR 15-16 · SCY
2276 points (4/5 events — incomplete)
| Event | Time | Points |
|---|---|---|
| 200 FR SCY | 1:56.13 | 677 |
| 100 BK SCY | 1:00.25 | 595 |
| 100 BR SCY | 1:15.76 | 441 |
| 200 IM SCY | 2:17.05 | 563 |
| 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 SCY 53.36
Front half 25.63s · back half 27.73s
200 Freestyle SCY 1:56.13
Front half 55.81s · back half 60.32s
500 Freestyle SCY 5:23.83
Front half 160.71s · back half 163.12s
100 Backstroke SCY 1:00.25
Front half 29.71s · back half 30.54s
200 Backstroke SCY 2:12.46
Front half 65.34s · back half 67.12s
100 Breaststroke SCY 1:15.76
Front half 35.99s · back half 39.77s
200 Individual Medley SCY 2:17.05
Front half 65.14s · back half 71.91s
400 Individual Medley SCY 4:56.82
Front half 138.48s · back half 158.34s
200 Freestyle LCM 2:25.39 RT 0.67s
Front half 71.51s · back half 73.88s
400 Freestyle LCM 5:06.16
Front half 150.56s · back half 155.60s
100 Backstroke LCM 1:16.35 RT 0.61s
Front half 37.32s · back half 39.03s
200 Backstroke LCM 2:46.61 RT 0.66s
Front half 82.11s · back half 84.50s
200 Individual Medley LCM 2:49.35 RT 0.70s
Front half 79.90s · back half 89.45s
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.
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.