swimJames Chang
Personal records
| Event | Course | Best | Cut | Date | Meet |
|---|---|---|---|---|---|
| 50 Freestyle | SCY | 24.47 | AA+0.98s to AAA | 2026-03-29 | 2026 Northeast Divisional Championships venue |
| 100 Freestyle | SCY | 53.27 | AA+2.08s to AAA | 2026-03-28 | 2026 Northeast Divisional Championships venue |
| 200 Freestyle | SCY | 1:55.31 | AA+3.32s to AAA | 2026-03-29 | 2026 Northeast Divisional Championships venue |
| 100 Backstroke | SCY | 1:06.91 | B+0.62s to BB | 2025-10-04 | GA 2025 Pentathlon slow pool |
| 200 Backstroke | SCY | 2:12.49 | A+5.00s to AA | 2026-03-28 | 2026 Northeast Divisional Championships venue |
| 100 Breaststroke | SCY | 1:18.42 | B+3.53s to BB | 2025-10-04 | GA 2025 Pentathlon slow pool |
| 100 Butterfly | SCY | 59.52 | A+1.63s to AA | 2026-03-28 | 2026 Northeast Divisional Championships venue |
| 200 Butterfly | SCY | 2:10.07 | A+1.18s to AA | 2026-03-29 | 2026 Northeast Divisional Championships venue |
| 100 Individual Medley | SCY | 1:07.68 | 2025-10-04 | GA 2025 Pentathlon slow pool | |
| 100 Freestyle | LCM | 1:01.26 | AA+2.27s to AAA | 2026-06-19 | 2026 June Classic venue |
| 200 Freestyle | LCM | 2:15.23 | A+0.54s to AA | 2026-06-20 | 2026 June Classic venue |
| 400 Freestyle | LCM | 4:54.67 | A+7.18s to AA | 2026-05-30 | 2026 ABSC IMX Knockout Series venue |
| 50 Backstroke | LCM | 42.55 | +3.06s to B | 2024-07-20 | 2024 GA AG LC Championship July 18-21 2024 venue |
| 100 Backstroke | LCM | 1:15.05 | BB+3.36s to A | 2026-05-30 | 2026 ABSC IMX Knockout Series venue |
| 100 Breaststroke | LCM | 1:27.26 | BB+6.67s to A | 2026-05-30 | 2026 ABSC IMX Knockout Series venue |
| 50 Butterfly | LCM | 30.58 | AA+1.29s to AAA | 2026-06-18 | 2026 June Classic venue |
| 100 Butterfly | LCM | 1:06.38 | A+0.39s to AA | 2026-06-19 | 2026 June Classic venue |
| 200 Butterfly | LCM | 2:27.13 | AA+5.64s to AAA | 2026-06-18 | 2026 June Classic |
| 200 Individual Medley | LCM | 2:33.64 | A+3.35s to AA | 2026-06-21 | 2026 June Classic venue |
| 400 Individual Medley | LCM | 5:28.26 | A+6.77s to AA | 2026-06-20 | 2026 June Classic venue |
Cuts are USA Swimming single-age motivational standards (B → AAAA) at age 14.
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 | 24.73 | flying | 200 Medley Relay (leg 4) | 2025-03-30 | 2025 Northeast Divisional Championships |
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 13-14 · LCM
2887 points (4/6 events — incomplete)
| Event | Time | Points |
|---|---|---|
| 400 FR LCM | 4:54.67 | 697 |
| 200 FL LCM | 2:27.13 | 768 |
| 200 IM LCM | 2:33.64 | 711 |
| 400 IM LCM | 5:28.26 | 711 |
| 200 BK LCM | — | 0 |
| 200 BR LCM | — | 0 |
IMR 13-14 · LCM
3319 points (5/5 events)
| Event | Time | Points |
|---|---|---|
| 200 FR LCM | 2:15.23 | 752 |
| 100 BK LCM | 1:15.05 | 585 |
| 100 BR LCM | 1:27.26 | 522 |
| 100 FL LCM | 1:06.38 | 749 |
| 200 IM LCM | 2:33.64 | 711 |
Scored against AAAA motivational base times: ordering is exact, absolute points run ~25% above the official USA Swimming scale.
PR splits
100 Freestyle SCY 53.27
Front half 25.92s · back half 27.35s
200 Freestyle SCY 1:55.31
Front half 56.03s · back half 59.28s
100 Backstroke SCY 1:06.91 RT 0.60s
Front half 31.03s · back half 35.88s
200 Backstroke SCY 2:12.49 RT 0.56s
Front half 64.27s · back half 68.22s
100 Breaststroke SCY 1:18.42
Front half 37.69s · back half 40.73s
100 Butterfly SCY 59.52
Front half 28.24s · back half 31.28s
200 Butterfly SCY 2:10.07
Front half 61.54s · back half 68.53s
100 Individual Medley SCY 1:07.68
Front half 30.71s · back half 36.97s
100 Freestyle LCM 1:01.26
Front half 29.71s · back half 31.55s
200 Freestyle LCM 2:15.23
Front half 65.85s · back half 69.38s
400 Freestyle LCM 4:54.67
Front half 146.09s · back half 148.58s
100 Butterfly LCM 1:06.38
Front half 32.13s · back half 34.25s
200 Butterfly LCM 2:27.13 split/total mismatch
200 Individual Medley LCM 2:33.64
Front half 118.25s · back half 35.39s
400 Individual Medley LCM 5:28.26
Front half 157.05s · back half 171.21s
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.