swimJoanna Zhu
Personal records
| Event | Course | Best | Cut | Date | Meet |
|---|---|---|---|---|---|
| 25 Freestyle | SCY | 23.67 | 2025-07-06 | 2025 Metro Committee Summer Festival venue | |
| 50 Freestyle | SCY | 41.07 | 2026-02-15 | 2026 Metro Champs @ La Mirada Armada venue | |
| 100 Freestyle | SCY | 1:28.53 | 2026-03-07 | 2026 CA Arcadia Riptides "Last Ditch" Meet fast pool | |
| 25 Backstroke | SCY | 29.42 | 2025-07-06 | 2025 Metro Committee Summer Festival venue | |
| 50 Backstroke | SCY | 47.09 | 2026-03-08 | 2026 CA Arcadia Riptides "Last Ditch" Meet fast pool | |
| 100 Backstroke | SCY | 1:44.90 | 2026-02-15 | 2026 Metro Champs @ La Mirada Armada venue | |
| 25 Breaststroke | SCY | 24.82 | 2025-11-08 | 2025 CA Downey Dolphins SC Swim Meet venue | |
| 50 Breaststroke | SCY | 50.63 | 2026-03-07 | 2026 CA Arcadia Riptides "Last Ditch" Meet fast pool | |
| 100 Breaststroke | SCY | 1:47.43 | 2026-03-08 | 2026 CA Arcadia Riptides "Last Ditch" Meet fast pool | |
| 25 Butterfly | SCY | 32.89 | 2025-07-06 | 2025 Metro Committee Summer Festival venue | |
| 50 Butterfly | SCY | 48.85 | 2026-03-07 | 2026 CA Arcadia Riptides "Last Ditch" Meet fast pool | |
| 100 Butterfly | SCY | 2:26.43 | 2025-09-13 | 2025 DARE Launch & Lunge Season Opener venue | |
| 100 Individual Medley | SCY | 1:40.79 | 2025-12-07 | 2025 CA Trident Swim Club SC Dec Meet venue | |
| 50 Freestyle | LCM | 1:04.30 | 2025-05-31 | 2025 CA Downey Dolphins Swim Team LC Meet slow pool | |
| 100 Freestyle | LCM | 2:13.49 | 2025-06-01 | 2025 CA Downey Dolphins Swim Team LC Meet slow pool | |
| 50 Backstroke | LCM | 1:20.09 | 2025-05-31 | 2025 CA Downey Dolphins Swim Team LC Meet slow pool |
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 | 42.83 | flat | 200 Free Relay | 2026-01-10 | 2026 CA Commerce Aquatics SC Swim Meet - |
| 50 Backstroke | SCY | 50.87 | flat | 200 Medley Relay | 2026-02-15 | 2026 Metro Champs @ La Mirada Armada |
| 50 Butterfly | SCY | 53.54 | flying | 200 Medley Relay (leg 3) | 2026-01-11 | 2026 CA Commerce Aquatics SC Swim Meet - |
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 10 & under · SCY
832 points (3/5 events — incomplete)
| Event | Time | Points |
|---|---|---|
| 100 BK SCY | 1:44.90 | 304 |
| 100 BR SCY | 1:47.43 | 415 |
| 100 FL SCY | 2:26.43 | 113 |
| 200 FR SCY | — | 0 |
| 200 IM SCY | — | 0 |
IMR 10 & under · SCY
1668 points (5/5 events)
| Event | Time | Points |
|---|---|---|
| 100 FR SCY | 1:28.53 | 340 |
| 50 BK SCY | 47.09 | 331 |
| 50 BR SCY | 50.63 | 386 |
| 50 FL SCY | 48.85 | 262 |
| 100 IM SCY | 1:40.79 | 349 |
Scored against AAAA motivational base times: ordering is exact, absolute points run ~25% above the official USA Swimming scale.
PR splits
100 Freestyle SCY 1:28.53
Front half 42.45s · back half 46.08s
100 Backstroke SCY 1:44.90
Front half 50.22s · back half 54.68s
100 Breaststroke SCY 1:47.43
Front half 51.85s · back half 55.58s
100 Butterfly SCY 2:26.43
Front half 63.53s · back half 82.90s
100 Individual Medley SCY 1:40.79
Front half 47.93s · back half 52.86s
Progression
Faster times are higher. One card per event, all courses & history.