swimHajin Choi
Personal records
| Event | Course | Best | Cut | Date | Meet |
|---|---|---|---|---|---|
| 25 Freestyle | SCY | 16.93 | 2026-02-28 | 2026 Area 4 Spring Champs venue | |
| 50 Freestyle | SCY | 37.78 | +2.69s to B | 2026-02-21 | 2026 SLAC Last Chance to Dance Invitational fast pool |
| 25 Backstroke | SCY | 22.20 | 2026-02-28 | 2026 Area 4 Spring Champs venue | |
| 100 Backstroke | SCY | 1:49.66 | +19.87s to B | 2026-02-01 | 2026 FAST February Helping Hands Invite venue |
| 25 Breaststroke | SCY | 23.75 | 2026-02-28 | 2026 Area 4 Spring Champs venue | |
| 50 Breaststroke | SCY | 51.55 | +4.66s to B | 2026-02-01 | 2026 FAST February Helping Hands Invite venue |
| 25 Butterfly | SCY | 20.81 | 2026-02-28 | 2026 Area 4 Spring Champs venue | |
| 50 Butterfly | SCY | 48.76 | +8.67s to B | 2026-02-21 | 2026 SLAC Last Chance to Dance Invitational fast pool |
| 200 Individual Medley | SCY | 2:18.37 | AAAA | 2026-02-21 | 2026 SLAC Last Chance to Dance Invitational |
| 50 Freestyle | LCM | 41.24 | +1.35s to B | 2026-05-17 | 2026 FAST May Invite fast pool |
| 100 Freestyle | LCM | 1:38.58 | +10.79s to B | 2026-06-06 | 2026 Sunshine State Games venue |
| 50 Backstroke | LCM | 51.36 | +3.77s to B | 2026-04-18 | 2026 SAINT PETE'S 1st LONG COURSE MEET venue |
| 50 Breaststroke | LCM | 55.64 | +2.25s to B | 2026-04-18 | 2026 SAINT PETE'S 1st LONG COURSE MEET venue |
| 100 Breaststroke | LCM | 2:04.23 | +7.04s to B | 2026-05-17 | 2026 FAST May Invite fast pool |
| 50 Butterfly | LCM | 52.01 | +6.72s to B | 2026-06-06 | 2026 Sunshine State Games venue |
Cuts are USA Swimming single-age motivational standards (B → AAAA) at age 11.
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.
IMX / IMR
IMX 11-12 · SCY
1028 points (2/5 events — incomplete)
| Event | Time | Points |
|---|---|---|
| 100 BK SCY | 1:49.66 | 159 |
| 200 IM SCY | 2:18.37 | 869 |
| 500 FR SCY | — | 0 |
| 100 BR SCY | — | 0 |
| 100 FL SCY | — | 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.
Progression
Faster times are higher. One card per event, all courses & history.