swimChengshuang Liu
Personal records
| Event | Course | Best | Cut | Date | Meet |
|---|---|---|---|---|---|
| 50 Freestyle | SCY | 30.51 | BB+1.12s to A | 2025-12-06 | SI 2025 RSD All Ages WAG Max venue |
| 100 Freestyle | SCY | 1:07.16 | BB+3.07s to A | 2026-02-22 | 2026 SI JBST Age Group Champs Max venue |
| 200 Freestyle | SCY | 2:31.72 | B+0.03s to BB | 2025-01-01 | FAST - CA |
| 500 Freestyle | SCY | 7:03.25 | B+17.16s to BB | 2025-05-17 | 2025 SI SBA NTS Meet venue |
| 50 Backstroke | SCY | 37.63 | B+1.54s to BB | 2026-02-22 | 2026 SI JBST Age Group Champs Max venue |
| 100 Backstroke | SCY | 1:22.33 | B+2.54s to BB | 2026-02-21 | 2026 SI JBST Age Group Champs Max venue |
| 50 Breaststroke | SCY | 35.53 | AA+0.94s to AAA | 2026-03-06 | 2026 SI 14U AGE GRP CHAMPIONSHIPS |
| 100 Breaststroke | SCY | 1:19.23 | A+0.54s to AA | 2026-03-06 | 2026 SI 14U AGE GRP CHAMPIONSHIPS |
| 200 Breaststroke | SCY | 2:57.88 | BB+1.39s to A | 2026-02-13 | 2026 MVN Lunar AAPI Festival venue |
| 50 Butterfly | SCY | 36.38 | B+2.09s to BB | 2025-10-04 | 2025 SI CAST Pentathlon 14&U - copied venue |
| 100 Butterfly | SCY | 1:29.17 | +3.08s to B | 2026-02-22 | 2026 SI JBST Age Group Champs Max venue |
| 100 Individual Medley | SCY | 1:16.63 | BB+3.54s to A | 2026-02-21 | 2026 SI JBST Age Group Champs Max venue |
| 200 Individual Medley | SCY | 2:52.65 | B+1.86s to BB | 2025-12-07 | SI 2025 RSD All Ages WAG Max venue |
| 50 Freestyle | LCM | 35.41 | BB+2.02s to A | 2026-06-20 | 2026 SI Splash and Dash fast pool |
| 100 Freestyle | LCM | 1:19.16 | BB+5.67s to A | 2026-06-19 | 2026 SI Splash and Dash fast pool |
| 200 Freestyle | LCM | 2:58.73 | B+5.24s to BB | 2025-07-13 | 2025 SI SDSA All Ages NTS Meet venue |
| 50 Breaststroke | LCM | 40.06 | AA+0.97s to AAA | 2026-06-19 | 2026 SI Splash and Dash fast pool |
| 100 Breaststroke | LCM | 1:31.78 | A+1.79s to AA | 2026-06-20 | 2026 SI Splash and Dash fast pool |
| 200 Breaststroke | LCM | 3:24.50 | BB+1.11s to A | 2025-06-22 | 2025 SI SPLASH AND DASH venue |
| 50 Butterfly | LCM | 46.10 | +4.31s to B | 2025-06-22 | 2025 SI SPLASH AND DASH venue |
| 100 Butterfly | LCM | 2:10.81 | +32.42s to B | 2024-06-09 | 2024 SI SPLASH AND DASH slow pool |
Cuts are USA Swimming single-age motivational standards (B → AAAA) at age 12.
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 Breaststroke | SCY | 35.53 | flying | 200 Medley Relay (leg 2) | 2026-02-13 | 2026 MVN Lunar AAPI Festival |
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 · SCY
2480 points (5/5 events)
| Event | Time | Points |
|---|---|---|
| 500 FR SCY | 7:03.25 | 464 |
| 100 BK SCY | 1:22.33 | 441 |
| 100 BR SCY | 1:19.23 | 734 |
| 100 FL SCY | 1:29.17 | 332 |
| 200 IM SCY | 2:52.65 | 509 |
IMR 11-12 · SCY
2798 points (5/5 events)
| Event | Time | Points |
|---|---|---|
| 200 FR SCY | 2:31.72 | 518 |
| 50 BK SCY | 37.63 | 461 |
| 50 BR SCY | 35.53 | 800 |
| 50 FL SCY | 36.38 | 440 |
| 100 IM SCY | 1:16.63 | 579 |
Scored against AAAA motivational base times: ordering is exact, absolute points run ~25% above the official USA Swimming scale.
PR splits
100 Freestyle SCY 1:07.16
Front half 31.85s · back half 35.31s
500 Freestyle SCY 7:03.25
Front half 203.59s · back half 219.66s
100 Backstroke SCY 1:22.33
Front half 39.74s · back half 42.59s
200 Breaststroke SCY 2:57.88
Front half 82.17s · back half 95.71s
100 Butterfly SCY 1:29.17
Front half 37.54s · back half 51.63s
100 Individual Medley SCY 1:16.63
Front half 37.37s · back half 39.26s
200 Individual Medley SCY 2:52.65
Front half 85.11s · back half 87.54s
100 Breaststroke LCM 1:31.78
Front half 42.62s · back half 49.16s
200 Breaststroke LCM 3:24.50
Front half 96.65s · back half 107.85s
Progression
Faster times are higher. One card per event, all courses & history.