Ji-in Chang
Personal records
| Event | Course | Best | Cut | Date | Meet |
|---|---|---|---|---|---|
| 50 Freestyle | SCY | 29.17 | AA+1.08s to AAA | 2026-03-28 | 2026 PN Spring Showdown, Div.1 Approved |
| 100 Freestyle | SCY | 1:02.75 | AA+1.66s to AAA | 2026-01-01 | Sanction #: 2603-SP04 |
| 200 Freestyle | SCY | 3:11.32 | +22.23s to B | 2025-10-18 | 2025 PN IST Fall Open |
| 50 Backstroke | SCY | 46.52 | +5.93s to B | 2026-02-07 | 2026 PN IST Feb Winter Invitational-Approved venue |
| 100 Backstroke | SCY | 1:44.84 | +14.15s to B | 2025-03-01 | 2025 PN C March Madness |
| 50 Breaststroke | SCY | 39.36 | BB+0.37s to A | 2025-02-22 | 2025 PN IST Feb Invitational |
| 100 Breaststroke | SCY | 1:07.38 | AAAA | 2026-02-16 | 2026 PN IST January Invitational- Approved |
| 50 Butterfly | SCY | 44.15 | +5.26s to B | 2026-03-28 | 2026 PN Spring Showdown, Div.1 Approved venue |
| 100 Butterfly | SCY | 1:17.80 | BB+1.51s to A | 2025-02-22 | 2025 PN IST Feb Invitational |
| 100 Individual Medley | SCY | 1:10.36 | AA+0.67s to AAA | 2025-01-01 | 1662191 |
| 200 Individual Medley | SCY | 3:38.09 | +25.30s to B | 2025-11-16 | 2025 PN IST November Invitational venue |
| 50 Freestyle | LCM | 41.08 | +0.69s to B | 2026-05-16 | 2026 PN IST Sockeye Springtime Madness App. venue |
| 100 Freestyle | LCM | 1:23.53 | B+0.74s to BB | 2025-07-18 | 2025 PN Chinook Age Group Seattle Open |
| 200 Freestyle | LCM | 2:41.45 | A+2.96s to AA | 2025-06-14 | 2025 IST June Invtational |
| 400 Freestyle | LCM | 6:15.11 | BB+24.82s to A | 2025-07-18 | 2025 PN Chinook Age Group Seattle Open |
| 50 Backstroke | LCM | 55.20 | +8.41s to B | 2025-05-04 | 2025 PN BC May Flowers venue |
| 100 Backstroke | LCM | 1:58.32 | +12.53s to B | 2026-05-16 | 2026 PN IST Sockeye Springtime Madness App. venue |
| 200 Backstroke | LCM | 4:13.98 | +33.49s to B | 2026-06-13 | 2026 PN IST June Invtational- Approved venue |
| 50 Breaststroke | LCM | 59.38 | +7.09s to B | 2026-05-30 | 2026 IE VS Apple Capital slow pool |
| 100 Breaststroke | LCM | 2:09.01 | +13.12s to B | 2026-06-13 | 2026 PN IST June Invtational- Approved venue |
| 50 Butterfly | LCM | 35.27 | AA+0.98s to AAA | 2025-07-18 | 2025 PN Chinook Age Group Seattle Open |
| 200 Individual Medley | LCM | 4:06.67 | +26.08s to B | 2026-05-16 | 2026 PN IST Sockeye Springtime Madness App. 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
2065 points (4/5 events — incomplete)
| Event | Time | Points |
|---|---|---|
| 100 BK SCY | 1:44.84 | 213 |
| 100 BR SCY | 1:07.38 | 1100 |
| 100 FL SCY | 1:17.80 | 500 |
| 200 IM SCY | 3:38.09 | 252 |
| 500 FR SCY | — | 0 |
IMR 11-12 · LCM
2089 points (5/5 events)
| Event | Time | Points |
|---|---|---|
| 200 FR LCM | 2:41.45 | 649 |
| 50 BK LCM | 55.20 | 225 |
| 50 BR LCM | 59.38 | 249 |
| 50 FL LCM | 35.27 | 704 |
| 200 IM LCM | 4:06.67 | 262 |
Scored against AAAA motivational base times: ordering is exact, absolute points run ~25% above the official USA Swimming scale.
PR splits
200 Freestyle SCY 3:11.32 split/total mismatch
100 Breaststroke SCY 1:07.38 split/total mismatch
200 Individual Medley SCY 3:38.09
200 Backstroke LCM 4:13.98 RT 0.68s
Front half 128.65s · back half 125.33s
200 Individual Medley LCM 4:06.67 RT 0.68s· 6.7 min after 100 Backstroke
Front half 124.57s · back half 122.10s
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.