swimHajin Choi
Personal records
| Event | Course | Best | Cut | Date | Meet |
|---|---|---|---|---|---|
| 25 Freestyle | SCY | 16.93 | 2026-02-28 | 2026 Area 4 Spring Champsvenue | |
| 50 Freestyle | SCY | 37.78 | +2.69s to B·+15.49s to Sectionals | 2026-02-21 | 2026 SLAC Last Chance to Dance Invitationalfast pool |
| 25 Backstroke | SCY | 22.20 | 2026-02-28 | 2026 Area 4 Spring Champsvenue | |
| 100 Backstroke | SCY | 1:49.66 | +19.87s to B·+54.57s to Sectionals | 2026-02-01 | 2026 FAST February Helping Hands Invitevenue |
| 25 Breaststroke | SCY | 23.75 | 2026-02-28 | 2026 Area 4 Spring Champsvenue | |
| 50 Breaststroke | SCY | 51.55 | +4.66s to B·+22.06s to Sectionals | 2026-02-01 | 2026 FAST February Helping Hands Invitevenue |
| 25 Butterfly | SCY | 20.81 | 2026-02-28 | 2026 Area 4 Spring Champsvenue | |
| 50 Butterfly | SCY | 48.76 | +8.67s to B·+24.47s to Sectionals | 2026-02-21 | 2026 SLAC Last Chance to Dance Invitationalfast pool |
| 50 Freestyle | LCM | 41.24 | +1.35s to B·+15.65s to Sectionals | 2026-05-17 | 2026 FAST May Invitefast pool |
| 100 Freestyle | LCM | 1:38.58 | +10.79s to B·+43.29s to Sectionals | 2026-06-06 | 2026 Sunshine State Gamesvenue |
| 50 Backstroke | LCM | 51.36 | +3.77s to B·+21.17s to Sectionals | 2026-04-18 | 2026 SAINT PETE'S 1st LONG COURSE MEETvenue |
| 50 Breaststroke | LCM | 55.64 | +2.25s to B·+21.45s to Sectionals | 2026-04-18 | 2026 SAINT PETE'S 1st LONG COURSE MEETvenue |
| 100 Breaststroke | LCM | 2:04.23 | +7.04s to B·+51.84s to Sectionals | 2026-05-17 | 2026 FAST May Invitefast pool |
| 50 Butterfly | LCM | 52.01 | +6.72s to B·+24.22s to Sectionals | 2026-06-06 | 2026 Sunshine State Gamesvenue |
Cuts are USA Swimming single-age motivational standards (B → AAAA) at age 11.
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 | 40.05 | flat | 200 Free Relay | 2026-02-28 | 2026 Area 4 Spring Champs |
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 11-12 · LCM
257 points (1/5 events — incomplete)
| Event | Time | Points |
|---|---|---|
| 100 BR LCM | 2:04.23 | 257 |
| 400 FR LCM | — | 0 |
| 100 BK LCM | — | 0 |
| 100 FL LCM | — | 0 |
| 200 IM LCM | — | 0 |
IMR 11-12 · LCM
724 points (3/5 events — incomplete)
| Event | Time | Points |
|---|---|---|
| 50 BK LCM | 51.36 | 255 |
| 50 BR LCM | 55.64 | 272 |
| 50 FL LCM | 52.01 | 197 |
| 200 FR LCM | — | 0 |
| 200 IM LCM | — | 0 |
Scored against AAAA motivational base times: ordering is exact, absolute points run ~25% above the official USA Swimming scale.
PR splits
100 Backstroke SCY 1:49.66
Front half 53.04s · back half 56.62s
100 Breaststroke LCM 2:04.23
Front half 60.50s · back half 63.73s
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.