swimEthan Zhou
Personal records
| Event | Course | Best | Cut | Date | Meet |
|---|---|---|---|---|---|
| 50 Freestyle | SCY | 22.28 | AAA+0.89s to AAAA | 2024-12-21 | King Marlin Pro-Am Classic venue |
| 100 Freestyle | SCY | 54.29 | BB+0.80s to A | 2023-03-03 | 2023 SE Speedo Southern Premier |
| 200 Freestyle | SCY | 1:47.58 | AA+0.49s to AAA | 2024-03-01 | 2024 Texas Age Group Swimming Short Course Ch venue |
| 50 Backstroke | SCY | 29.06 | BB+1.77s to A | 2023-03-03 | 2023 SE Speedo Southern Premier |
| 50 Breaststroke | SCY | 29.32 | AA+0.43s to AAA | 2023-03-03 | 2023 SE Speedo Southern Premier |
| 100 Breaststroke | SCY | 55.03 | AAAA | 2025-01-01 | 2025 Speedo Winter Junior Championships - West |
| 200 Breaststroke | SCY | 1:58.75 | AAAA | 2025-01-01 | 2025 Speedo Winter Junior Championships - West |
| 100 Butterfly | SCY | 51.67 | AAA+1.18s to AAAA | 2025-11-12 | nt Hz9zkqJTTBhC9chx8 |
| 100 Individual Medley | SCY | 1:00.61 | 2023-03-03 | 2023 SE Speedo Southern Premier | |
| 200 Individual Medley | SCY | 1:50.28 | AAAA | 2025-01-01 | 2025 Speedo Winter Junior Championships - West |
| 400 Individual Medley | SCY | 4:21.60 | AA+7.11s to AAA | 2024-03-01 | 2024 Texas Age Group Swimming Short Course Ch venue |
| 50 Freestyle | LCM | 24.99 | AAA+0.20s to AAAA | 2024-07-21 | 2024 Texas Age Group Swimming LC Champs venue |
| 100 Freestyle | LCM | 54.53 | AAA+0.64s to AAAA | 2024-07-18 | 2024 Texas Age Group Swimming LC Champs venue |
| 200 Freestyle | LCM | 2:00.38 | AAA+2.39s to AAAA | 2024-07-19 | 2024 Texas Age Group Swimming LC Champs venue |
| 200 Backstroke | LCM | 2:25.81 | A+4.32s to AA | 2026-05-04 | nt E4apkSor5FZEkWtbr |
| 50 Breaststroke | LCM | 29.69 | AAAA | 2025-07-31 | 2025 Speedo Junior National Championships fast pool |
| 100 Breaststroke | LCM | 1:05.20 | AAAA | 2025-07-30 | 2025 Speedo Junior National Championships fast pool |
| 200 Breaststroke | LCM | 2:18.57 | AAAA | 2025-08-02 | 2025 Speedo Junior National Championships fast pool |
| 100 Butterfly | LCM | 1:01.90 | AA+1.41s to AAA | 2026-05-04 | nt E4apkSor5FZEkWtbr |
| 200 Individual Medley | LCM | 2:15.60 | AAA+3.21s to AAAA | 2024-07-18 | 2024 Texas Age Group Swimming LC Champs venue |
Cuts are USA Swimming single-age motivational standards (B → AAAA) at age 16.
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 | 36.33 | flying | 200 Medley Relay (leg 2) | 2020-03-08 | 2020 Short Course TAGS Championships |
| 100 Breaststroke | SCY | 56.47 | flying | 400 Medley Relay (leg 2) | 2024-12-21 | King Marlin Pro-Am 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 15-16 · SCY
2968 points (3/6 events — incomplete)
| Event | Time | Points |
|---|---|---|
| 200 BR SCY | 1:58.75 | 1100 |
| 200 IM SCY | 1:50.28 | 1081 |
| 400 IM SCY | 4:21.60 | 787 |
| 500 FR SCY | — | 0 |
| 200 BK SCY | — | 0 |
| 200 FL SCY | — | 0 |
IMR 15-16 · SCY
3960 points (4/5 events — incomplete)
| Event | Time | Points |
|---|---|---|
| 200 FR SCY | 1:47.58 | 852 |
| 100 BR SCY | 55.03 | 1100 |
| 100 FL SCY | 51.67 | 927 |
| 200 IM SCY | 1:50.28 | 1081 |
| 100 BK SCY | — | 0 |
Scored against AAAA motivational base times: ordering is exact, absolute points run ~25% above the official USA Swimming scale.
PR splits
200 Freestyle SCY 1:47.58
Front half 52.46s · back half 55.12s
400 Individual Medley SCY 4:21.60
Front half 129.92s · back half 131.68s
100 Freestyle LCM 54.53
Front half 26.35s · back half 28.18s
200 Freestyle LCM 2:00.38 RT 0.68s
Front half 58.01s · back half 62.37s
200 Backstroke LCM 2:25.81 split/total mismatch
100 Breaststroke LCM 1:05.20 RT 0.66s
Front half 30.50s · back half 34.70s
200 Breaststroke LCM 2:18.57 RT 0.66s
Front half 66.66s · back half 71.91s
100 Butterfly LCM 1:01.90 split/total mismatch
Front half 32.67s · back half 29.23s
200 Individual Medley LCM 2:15.60
Front half 67.65s · back half 67.95s
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.