swimMason Zhu
Personal records
| Event | Course | Best | Cut | Date | Meet |
|---|---|---|---|---|---|
| 25 Freestyle | SCY | 14.93 | 2024-02-17 | 2024 Last Chance Meet venue | |
| 50 Freestyle | SCY | 24.80 | AAA+0.21s to AAAA | 2025-10-03 | SPA FRIDAY NITE RACES OCT 3 2025 |
| 100 Freestyle | SCY | 1:06.12 | BB+4.83s to A | 2025-10-12 | WFLA Halloween Invitational venue |
| 200 Freestyle | SCY | 2:29.97 | B+5.08s to BB | 2024-11-02 | CAT Fall Harvest Championship Meet venue |
| 50 Backstroke | SCY | 36.17 | B+0.58s to BB | 2026-01-24 | BLOOMIN' FAST SWIM MEET venue |
| 100 Backstroke | SCY | 1:17.63 | B+1.94s to BB | 2026-01-25 | BLOOMIN' FAST SWIM MEET venue |
| 50 Breaststroke | SCY | 34.48 | AA+1.19s to AAA | 2025-10-10 | WFLA Halloween Invitational |
| 100 Breaststroke | SCY | 1:19.84 | BB+1.45s to A | 2026-03-05 | 2026 Florida Swimming FLAGS NORTH |
| 200 Breaststroke | SCY | 2:53.49 | BB+5.10s to A | 2026-03-05 | 2026 Florida Swimming FLAGS NORTH |
| 25 Butterfly | SCY | 17.42 | 2024-02-17 | 2024 Last Chance Meet venue | |
| 50 Butterfly | SCY | 30.48 | A+0.79s to AA | 2026-02-27 | 2026 Spring Area 3 Championships venue |
| 100 Butterfly | SCY | 1:08.55 | A+2.66s to AA | 2026-03-07 | 2026 Florida Swimming FLAGS NORTH venue |
| 200 Butterfly | SCY | 2:37.47 | BB+5.98s to A | 2026-03-05 | 2026 Florida Swimming FLAGS NORTH |
| 100 Individual Medley | SCY | 1:14.30 | BB+4.31s to A | 2025-10-11 | WFLA Halloween Invitational venue |
| 200 Individual Medley | SCY | 2:52.08 | B+6.29s to BB | 2024-12-08 | 2024 CAT Jingle Bell Invitational Meet venue |
| 50 Freestyle | LCM | 29.46 | AA+0.07s to AAA | 2026-04-17 | 2026 SAINT PETE'S 1st LONG COURSE MEET |
| 100 Freestyle | LCM | 1:13.92 | BB+3.53s to A | 2026-05-03 | 2026 WFLA SPRING OPEN venue |
| 50 Backstroke | LCM | 44.13 | B+2.94s to BB | 2024-06-08 | Escape the Heat 2024 slow pool |
| 100 Backstroke | LCM | 1:36.89 | B+7.30s to BB | 2025-01-19 | 2025 CAT Al Soltis Memorial Invitational Meet venue |
| 50 Breaststroke | LCM | 41.72 | A+1.73s to AA | 2026-06-05 | 2026 TAMPA BAY SWIM CLASSIC |
| 100 Breaststroke | LCM | 1:31.81 | BB+0.52s to A | 2026-06-05 | 2026 TAMPA BAY SWIM CLASSIC |
| 200 Breaststroke | LCM | 3:31.34 | BB+15.95s to A | 2026-05-03 | 2026 WFLA SPRING OPEN venue |
| 50 Butterfly | LCM | 33.72 | A+0.13s to AA | 2026-06-05 | 2026 TAMPA BAY SWIM CLASSIC |
| 100 Butterfly | LCM | 1:18.37 | A+2.78s to AA | 2026-06-05 | 2026 TAMPA BAY SWIM CLASSIC |
| 200 Individual Medley | LCM | 2:59.36 | BB+5.17s to A | 2026-04-19 | 2026 SAINT PETE'S 1st LONG COURSE MEET venue |
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 Freestyle | SCY | 28.01 | flat | 200 Free Relay | 2026-03-05 | 2026 Florida Swimming FLAGS NORTH |
| 50 Freestyle | SCY | 26.62 | flying | 200 Free Relay (leg 4) | 2024-10-26 | 2024 GTSA TYR Swim Classic at Berkeley |
| 50 Backstroke | SCY | 38.61 | flat | 200 Medley Relay | 2024-03-02 | 2024 Florida Swimming FLAGS NORTH |
| 50 Breaststroke | SCY | 43.38 | flying | 200 Medley Relay (leg 2) | 2024-04-07 | 2024 GTSA TYR Spring Championship |
| 50 Butterfly | SCY | 30.01 | flying | 200 Medley Relay (leg 3) | 2026-03-07 | 2026 Florida Swimming FLAGS NORTH |
| 100 Butterfly | SCY | 1:09.04 | flying | 400 Medley Relay (leg 3) | 2026-03-05 | 2026 Florida Swimming FLAGS NORTH |
| 50 Freestyle | LCM | 32.55 | flying | 200 Free Relay (leg 4) | 2026-06-06 | 2026 TAMPA BAY SWIM CLASSIC |
| 50 Butterfly | LCM | 40.89 | flying | 200 Medley Relay (leg 3) | 2026-06-07 | 2026 TAMPA BAY SWIM CLASSIC |
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 · LCM
2257 points (4/5 events — incomplete)
| Event | Time | Points |
|---|---|---|
| 100 BK LCM | 1:36.89 | 383 |
| 100 BR LCM | 1:31.81 | 636 |
| 100 FL LCM | 1:18.37 | 647 |
| 200 IM LCM | 2:59.36 | 591 |
| 400 FR LCM | — | 0 |
IMR 11-12 · SCY
2934 points (5/5 events)
| Event | Time | Points |
|---|---|---|
| 200 FR SCY | 2:29.97 | 474 |
| 50 BK SCY | 36.17 | 473 |
| 50 BR SCY | 34.48 | 761 |
| 50 FL SCY | 30.48 | 671 |
| 100 IM SCY | 1:14.30 | 555 |
Scored against AAAA motivational base times: ordering is exact, absolute points run ~25% above the official USA Swimming scale.
PR splits
100 Freestyle SCY 1:06.12
Front half 31.44s · back half 34.68s
200 Freestyle SCY 2:29.97
Front half 71.81s · back half 78.16s
100 Backstroke SCY 1:17.63
Front half 37.50s · back half 40.13s
100 Butterfly SCY 1:08.55
Front half 31.86s · back half 36.69s
100 Individual Medley SCY 1:14.30
Front half 34.96s · back half 39.34s
200 Individual Medley SCY 2:52.08
Front half 80.68s · back half 91.40s
100 Backstroke LCM 1:36.89
Front half 45.94s · back half 50.95s
100 Breaststroke LCM 1:31.81
Front half 43.43s · back half 48.38s
200 Breaststroke LCM 3:31.34
Front half 99.65s · back half 111.69s
100 Butterfly LCM 1:18.37
Front half 35.90s · back half 42.47s
200 Individual Medley LCM 2:59.36
Front half 84.05s · back half 95.31s
Progression
Faster times are higher. One card per event, all courses & history.