swimZhiyuan Zhou
Personal records
| Event | Course | Best | Cut | Date | Meet |
|---|---|---|---|---|---|
| 50 Freestyle | SCY | 24.45 | A+0.76s to AA·+1.26s to Sectionals | 2026-01-24 | 2026 Zone 1 North Championshipsvenue |
| 100 Freestyle | SCY | 52.95 | A+0.96s to AA·+1.96s to Sectionals | 2026-01-25 | 2026 Zone 1 North Championshipsvenue |
| 500 Freestyle | SCY | 5:33.37 | BB+10.78s to A·+30.68s to Sectionals | 2026-03-28 | PSL March CBA+venue |
| 50 Backstroke | SCY | 28.36 | BB+0.37s to A·+4.67s to Futures | 2026-01-11 | SSF NEW YEAR SPLASH C/B/A+venue |
| 50 Breaststroke | SCY | 28.87 | AAA+0.78s to AAAA·+2.58s to Futures | 2026-01-10 | SSF NEW YEAR SPLASH C/B/A+venue |
| 100 Breaststroke | SCY | 1:02.28 | AA+0.49s to AAA·Sectionals ✓+4.29s to Futures | 2026-03-08 | BAC Race to AGCsvenue |
| 50 Butterfly | SCY | 24.97 | AAA+0.68s to AAAA·+2.08s to Futures | 2026-01-11 | SSF NEW YEAR SPLASH C/B/A+venue |
| 100 Butterfly | SCY | 55.52 | AA+1.53s to AAA·+0.33s to Sectionals | 2026-01-10 | SSF NEW YEAR SPLASH C/B/A+venue |
| 100 Individual Medley | SCY | 59.92 | 2026-02-07 | PASA CBA+ SCY Meet Feb 2026venue | |
| 200 Individual Medley | SCY | 2:12.75 | BB+0.56s to A·+8.76s to Sectionals | 2026-01-24 | 2026 Zone 1 North Championshipsvenue |
| 50 Freestyle | LCM | 27.85 | A+0.46s to AA·+0.86s to Sectionals | 2026-07-11 | Pacific Swimming Long Course Senior Openvenue |
| 50 Breaststroke | LCM | 31.63 | AAAA·+0.74s to Futures | 2026-07-24 | 2026 PC Novato CA/NV Speedo Sectionalsvenue |
| 100 Breaststroke | LCM | 1:12.25 | AA+0.46s to AAA·Sectionals ✓+4.06s to Futures | 2026-07-25 | 2026 PC Novato CA/NV Speedo Sectionalsvenue |
| 200 Breaststroke | LCM | 2:51.89 | BB+0.50s to A·+11.01s to Sectionals | 2026-07-10 | Pacific Swimming Long Course Senior Openvenue |
| 50 Butterfly | LCM | 29.35 | AA+0.66s to AAA·+3.06s to Futures | 2026-07-10 | Pacific Swimming Long Course Senior Openvenue |
Cuts are USA Swimming single-age motivational standards (B → AAAA) at age 15.
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.
Fastest relay legs
| Leg | Course | Time | Start | Relay | Date | Meet |
|---|---|---|---|---|---|---|
| 50 Breaststroke | SCY | 28.50 | flying | 200 Medley Relay (leg 2) | 2026-01-25 | 2026 Zone 1 North Championships |
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
1188 points (2/6 events — incomplete)
| Event | Time | Points |
|---|---|---|
| 500 FR SCY | 5:33.37 | 569 |
| 200 IM SCY | 2:12.75 | 619 |
| 200 BK SCY | — | 0 |
| 200 BR SCY | — | 0 |
| 200 FL SCY | — | 0 |
| 400 IM SCY | — | 0 |
IMR 15-16 · SCY
2160 points (3/5 events — incomplete)
| Event | Time | Points |
|---|---|---|
| 100 BR SCY | 1:02.28 | 794 |
| 100 FL SCY | 55.52 | 747 |
| 200 IM SCY | 2:12.75 | 619 |
| 200 FR SCY | — | 0 |
| 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
100 Freestyle SCY 52.95
Front half 25.55s · back half 27.40s
100 Breaststroke SCY 1:02.28
Front half 29.23s · back half 33.05s
200 Individual Medley SCY 2:12.75
Front half 64.14s · back half 68.61s
100 Breaststroke LCM 1:12.25
Front half 33.72s · back half 38.53s
200 Breaststroke LCM 2:51.89
Front half 83.88s · back half 88.01s
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.