swimSean Zhou
Personal records
| Event | Course | Best | Cut | Date | Meet |
|---|---|---|---|---|---|
| 50 Freestyle | SCY | 22.39 | AA+0.30s to AAA·+0.10s to Sectionals | 2026-02-27 | Meet Results for |
| 100 Freestyle | SCY | 48.51 | AA+0.22s to AAA·+0.22s to Sectionals | 2025-01-01 | 2025 Southern Senior Championships |
| 200 Freestyle | SCY | 1:45.51 | AAA+4.02s to AAAA·Sectionals ✓+3.92s to Futures | 2026-02-27 | Meet Results for |
| 500 Freestyle | SCY | 4:47.79 | AAA+12.30s to AAAA·+1.70s to Sectionals | 2025-02-28 | 2025 Gulf 13 & Over Champs (PEAK)fast pool |
| 1000 Freestyle | SCY | 10:39.55 | A+7.56s to AA·+42.36s to Sectionals | 2024-10-05 | 2024 October KATY Senior Invitationalvenue |
| 100 Backstroke | SCY | 2:10.97 | +64.18s to B·+75.88s to Sectionals | 2024-10-05 | 2024 October KATY Senior Invitationalvenue |
| 200 Backstroke | SCY | 2:05.12 | A+5.13s to AA·+2.83s to Sectionals | 2024-12-08 | 2024 Gulf Southern Senior Championshipsvenue |
| 50 Breaststroke | SCY | 29.82 | A+0.23s to AA·+0.33s to Sectionals | 2024-09-21 | 2024 Katy Purple Black & White Meetvenue |
| 100 Breaststroke | SCY | 1:00.90 | AA+1.51s to AAA·Sectionals ✓+2.91s to Futures | 2026-02-27 | Meet Results for |
| 200 Breaststroke | SCY | 2:20.74 | A+5.85s to AA·+1.45s to Sectionals | 2025-10-04 | 2025 October KATY Senior Invitationalvenue |
| 50 Butterfly | SCY | 25.97 | A+0.38s to AA·+1.68s to Sectionals | 2024-09-21 | 2024 Katy Purple Black & White Meetvenue |
| 100 Butterfly | SCY | 53.59 | AA+1.60s to AAA·+0.90s to Sectionals | 2025-01-01 | 2025 Southern Senior Championships |
| 200 Butterfly | SCY | 2:12.01 | BB+4.52s to A·+13.52s to Sectionals | 2024-10-05 | 2024 October KATY Senior Invitevenue |
| 100 Individual Medley | SCY | 58.30 | 2024-09-21 | 2024 Katy Purple Black & White Meetvenue | |
| 200 Individual Medley | SCY | 2:01.11 | AA+3.62s to AAA·+1.72s to Sectionals | 2025-01-01 | 2025 Southern Senior Championships |
| 400 Individual Medley | SCY | 4:32.83 | A+8.34s to AA·+20.84s to Sectionals | 2026-01-02 | 2026 KATY January Westpark Tollway Classicvenue |
| 50 Freestyle | LCM | 26.29 | AA+0.80s to AAA·+0.70s to Sectionals | 2026-07-11 | 2026 Gulf LC Senior Champsvenue |
| 100 Freestyle | LCM | 52.59 | AAAA·Winter JNs ✓+0.60s to Jr Nationals | 2025-01-03 | 2025 KATY January Westpark Tollway Classicvenue |
| 200 Freestyle | LCM | 1:58.75 | AAA+2.16s to AAAA·Sectionals ✓+0.96s to Futures | 2026-07-29 | 2026 Southern Zone Senior LC Championships |
| 400 Freestyle | LCM | 4:12.94 | AAA+4.25s to AAAA·Sectionals ✓+2.95s to Futures | 2026-07-29 | 2026 Southern Zone Senior LC Championships |
| 800 Freestyle | LCM | 9:40.50 | A+14.31s to AA·+44.91s to Sectionals | 2025-01-01 | 2025 Texas Senior Circuit I |
| 50 Backstroke | LCM | 1:08.85 | +31.46s to B·+38.66s to Sectionals | 2026-06-26 | 2026 BATS June Invite |
| 100 Backstroke | LCM | 1:05.13 | A+0.44s to AA·+0.64s to Sectionals | 2026-07-11 | 2026 Gulf LC Senior Champsvenue |
| 200 Backstroke | LCM | 2:32.80 | BB+5.71s to A·+12.11s to Sectionals | 2026-04-17 | 2026 Aggieland April Long Course Invitational |
| 50 Breaststroke | LCM | 34.96 | A+1.37s to AA·+0.77s to Sectionals | 2024-07-14 | 2024 Long Course Gulf Age Group Championshipsvenue |
| 100 Breaststroke | LCM | 1:12.41 | A+0.02s to AA·+0.02s to Sectionals | 2026-06-26 | 2026 BATS June Invite |
| 200 Breaststroke | LCM | 2:32.27 | AA+1.28s to AAA·Sectionals ✓+3.18s to Futures | 2025-01-03 | 2025 KATY January Westpark Tollway Classicvenue |
| 50 Butterfly | LCM | 27.32 | AAA+0.93s to AAAA·Sectionals ✓+1.03s to Futures | 2026-07-29 | 2026 Southern Zone Senior LC Championships |
| 100 Butterfly | LCM | 56.84 | AAAA·Futures ✓+0.35s to Winter JNs | 2025-01-03 | 2025 KATY January Westpark Tollway Classicvenue |
| 200 Butterfly | LCM | 2:19.83 | A+0.54s to AA·+2.44s to Sectionals | 2026-06-26 | 2026 BATS June Invite |
| 200 Individual Medley | LCM | 2:16.33 | AA+0.14s to AAA·Sectionals ✓+3.54s to Futures | 2026-07-29 | 2026 Southern Zone Senior LC Championships |
| 400 Individual Medley | LCM | 5:06.28 | A+0.59s to AA·+12.39s to Sectionals | 2026-05-02 | Hosted by Katy Aquatics |
Cuts are USA Swimming single-age motivational standards (B → AAAA) at age 17.
National cuts (Sectionals → Nationals) are the current-season meet qualifying times for the swimmer's zone and age group; ✓ marks the hardest cut already achieved.
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 | SCY | 52.61 | flat | 400 Free Relay | 2024-03-03 | 2024 Gulf 13 & Over Champs (SHRK) |
| 100 Freestyle | SCY | 48.76 | flying | 400 Free Relay (leg 4) | 2024-12-06 | 2024 Gulf Southern Senior Championships |
| 100 Butterfly | SCY | 58.27 | flying | 400 Medley Relay (leg 3) | 2024-03-02 | 2024 Gulf 13 & Over Champs (SHRK) |
| 50 Freestyle | LCM | 25.46 | flying | 200 Free Relay (leg 2) | 2025-07-23 | 2025 TNAQ Senior Summer Showdown |
| 100 Freestyle | LCM | 56.67 | flying | 400 Free Relay (leg 4) | 2025-07-25 | 2025 TNAQ Senior Summer Showdown |
| 100 Freestyle | LCM | 55.63 | flying | 400 Medley Relay (leg 4) | 2026-07-11 | 2026 Gulf LC Senior Champs |
| 200 Freestyle | LCM | 2:05.47 | flying | 800 Free Relay (leg 2) | 2025-07-24 | 2025 TNAQ Senior Summer Showdown |
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 17-18 · LCM
4583 points (6/6 events)
| Event | Time | Points |
|---|---|---|
| 400 FR LCM | 4:12.94 | 907 |
| 200 BK LCM | 2:32.80 | 572 |
| 200 BR LCM | 2:32.27 | 809 |
| 200 FL LCM | 2:19.83 | 719 |
| 200 IM LCM | 2:16.33 | 847 |
| 400 IM LCM | 5:06.28 | 729 |
IMR 17-18 · LCM
4141 points (5/5 events)
| Event | Time | Points |
|---|---|---|
| 200 FR LCM | 1:58.75 | 900 |
| 100 BK LCM | 1:05.13 | 713 |
| 100 BR LCM | 1:12.41 | 726 |
| 100 FL LCM | 56.84 | 955 |
| 200 IM LCM | 2:16.33 | 847 |
Scored against AAAA motivational base times: ordering is exact, absolute points run ~25% above the official USA Swimming scale.
PR splits
500 Freestyle SCY 4:47.79
Front half 142.45s · back half 145.34s
200 Backstroke SCY 2:05.12
Front half 60.76s · back half 64.36s
200 Breaststroke SCY 2:20.74
200 Butterfly SCY 2:12.01
Front half 61.53s · back half 70.48s
100 Individual Medley SCY 58.30
Front half 27.15s · back half 31.15s
800 Freestyle LCM 9:40.50 split/total mismatch
100 Backstroke LCM 1:05.13
Front half 31.42s · back half 33.71s
200 Butterfly LCM 2:19.83 split/total mismatch
400 Individual Medley LCM 5:06.28
Front half 153.10s · back half 153.18s
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.
Swim history
Every recorded swim, newest first
| Date | Event | Course | Time | Age | Round | Meet |
|---|
Individual swims with a recorded date and time — including disqualifications — plus reconstructed relay legs (marked). Assembled in the browser from this page’s data.
Progression
Faster times are higher. One card per event, all courses & history.