swimJustin Zhou
Personal records
| Event | Course | Best | Cut | Date | Meet |
|---|---|---|---|---|---|
| 50 Freestyle | SCY | 33.83 | +2.74s to B | 2025-12-21 | Life Time Michigan Candy Cane Classic venue |
| 100 Freestyle | SCY | 1:10.15 | +2.56s to B | 2026-05-02 | 2026 Life Time Michigan Intersquad venue |
| 200 Freestyle | SCY | 2:34.27 | +6.48s to B | 2026-05-02 | 2026 Life Time Michigan Intersquad venue |
| 500 Freestyle | SCY | 7:11.78 | +33.09s to B | 2026-01-11 | 2026 LIFE & Royal Swimming Winter Fest venue |
| 50 Backstroke | SCY | 37.65 | +2.26s to B | 2026-05-02 | 2026 Life Time Michigan Intersquad venue |
| 100 Backstroke | SCY | 1:23.86 | +9.47s to B | 2026-02-14 | 2026 Best ValenTimes Meet venue |
| 200 Backstroke | SCY | 3:10.91 | +28.82s to B | 2025-10-05 | 2025 LIFE & ROYAL Fall Frenzy venue |
| 50 Breaststroke | SCY | 44.19 | +3.70s to B | 2025-09-20 | 2025 Life TIme Michigan Intersquad slow pool |
| 100 Breaststroke | SCY | 1:33.88 | +9.59s to B | 2025-12-21 | Life Time Michigan Candy Cane Classic venue |
| 200 Breaststroke | SCY | 3:48.41 | +45.42s to B | 2025-01-12 | 2025 LIFE & Royal Swimming Winter Fest slow pool |
| 50 Butterfly | SCY | 45.76 | +11.07s to B | 2025-11-15 | 2025 SAC Thanksgiving Classic ABC Meet venue |
| 100 Butterfly | SCY | 1:28.28 | +14.49s to B | 2026-02-14 | 2026 Best ValenTimes Meet venue |
| 100 Individual Medley | SCY | 1:25.98 | 2026-02-14 | 2026 Best ValenTimes Meet venue | |
| 200 Individual Medley | SCY | 2:45.09 | +0.40s to B | 2025-05-17 | 2025 USSC Spring Into Summer |
| 50 Freestyle | SCM | 38.47 | +4.08s to B | 2025-06-26 | June 2025 Life Time Michigan Intersquad venue |
| 100 Freestyle | SCM | 1:26.47 | +11.88s to B | 2025-05-20 | May 2025 Life Time Michigan Intersquad venue |
| 50 Backstroke | SCM | 45.33 | +6.24s to B | 2025-06-26 | June 2025 Life Time Michigan Intersquad venue |
| 50 Breaststroke | SCM | 54.00 | +9.31s to B | 2025-05-20 | May 2025 Life Time Michigan Intersquad venue |
| 50 Butterfly | SCM | 49.73 | +11.44s to B | 2025-06-26 | June 2025 Life Time Michigan Intersquad venue |
| 100 Individual Medley | SCM | 1:41.38 | 2025-05-20 | May 2025 Life Time Michigan Intersquad venue | |
| 50 Freestyle | LCM | 30.45 | A+1.16s to AA | 2025-06-21 | 2025 Life Time Michigan Summerfest |
| 100 Freestyle | LCM | 1:28.27 | +10.08s to B | 2025-07-12 | 2025 Grizzly Summer Sizzler venue |
| 200 Freestyle | LCM | 3:17.19 | +27.20s to B | 2025-06-22 | 2025 Life Time Michigan Summerfest venue |
| 50 Backstroke | LCM | 49.47 | +8.28s to B | 2025-07-12 | 2025 Grizzly Summer Sizzler venue |
| 100 Backstroke | LCM | 1:47.36 | +19.97s to B | 2025-06-22 | 2025 Life Time Michigan Summerfest venue |
| 50 Breaststroke | LCM | 53.18 | +7.29s to B | 2025-06-22 | 2025 Life Time Michigan Summerfest venue |
| 100 Breaststroke | LCM | 1:54.94 | +17.75s to B | 2025-07-12 | 2025 Grizzly Summer Sizzler venue |
| 200 Individual Medley | LCM | 3:53.39 | +43.00s to B | 2025-07-12 | 2025 Grizzly Summer Sizzler venue |
Cuts are USA Swimming single-age motivational standards (B → AAAA) at age 13.
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 |
|---|---|---|---|---|---|---|
| 100 Freestyle | LCM | 1:25.02 | flying | 400 Free Relay (leg 4) | 2025-06-22 | 2025 Life Time Michigan Summerfest |
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 · SCY
1082 points (4/6 events — incomplete)
| Event | Time | Points |
|---|---|---|
| 500 FR SCY | 7:11.78 | 300 |
| 200 BK SCY | 3:10.91 | 224 |
| 200 BR SCY | 3:48.41 | 189 |
| 200 IM SCY | 2:45.09 | 369 |
| 200 FL SCY | — | 0 |
| 400 IM SCY | — | 0 |
IMR 13-14 · SCY
1441 points (5/5 events)
| Event | Time | Points |
|---|---|---|
| 200 FR SCY | 2:34.27 | 332 |
| 100 BK SCY | 1:23.86 | 259 |
| 100 BR SCY | 1:33.88 | 266 |
| 100 FL SCY | 1:28.28 | 215 |
| 200 IM SCY | 2:45.09 | 369 |
Scored against AAAA motivational base times: ordering is exact, absolute points run ~25% above the official USA Swimming scale.
PR splits
100 Freestyle SCY 1:10.15
Front half 33.83s · back half 36.32s
200 Freestyle SCY 2:34.27
Front half 73.67s · back half 80.60s
100 Backstroke SCY 1:23.86
Front half 40.40s · back half 43.46s
200 Backstroke SCY 3:10.91
100 Breaststroke SCY 1:33.88
Front half 43.62s · back half 50.26s
200 Breaststroke SCY 3:48.41
100 Butterfly SCY 1:28.28
Front half 40.57s · back half 47.71s
100 Individual Medley SCY 1:25.98
Front half 43.11s · back half 42.87s
100 Freestyle LCM 1:28.27
Front half 40.73s · back half 47.54s
100 Breaststroke LCM 1:54.94
Front half 56.03s · back half 58.91s
200 Individual Medley LCM 3:53.39
Front half 121.35s · back half 112.04s
Progression
Faster times are higher. One card per event, all courses & history.