swimSerena Zhang
Personal records
| Event | Course | Best | Cut | Date | Meet |
|---|---|---|---|---|---|
| 50 Freestyle | SCY | 26.95 | AAA+1.16s to AAAA·+2.16s to Sectionals | 2026-03-19 | 2026 NJS & Scarlet 11 & Over Gold Champs |
| 200 Freestyle | SCY | 2:07.43 | AAA+4.94s to AAAA·+12.44s to Sectionals | 2026-03-19 | 2026 NJS & Scarlet 11 & Over Gold Champs |
| 50 Backstroke | SCY | 30.31 | AAA+1.22s to AAAA·+4.02s to Futures | 2026-03-19 | 2026 NJS & Scarlet 11 & Over Gold Champs |
| 100 Backstroke | SCY | 1:14.55 | BB+1.56s to A·+15.26s to Sectionals | 2024-03-30 | 2024 Eastern Zone SC Age Group Championshipsvenue |
| 50 Breaststroke | SCY | 31.80 | AAAA·+2.01s to Futures | 2026-03-19 | 2026 NJS & Scarlet 11 & Over Gold Champs |
| 100 Breaststroke | SCY | 1:10.41 | AAAA·+2.22s to Sectionals | 2026-03-19 | 2026 NJS & Scarlet 11 & Over Gold Champs |
| 100 Individual Medley | SCY | 1:06.59 | AAA+2.60s to AAAA | 2025-03-20 | 2025 NJS & Scarlet Gold Championship |
| 200 Individual Medley | SCY | 2:20.76 | AAA+2.77s to AAAA·+10.07s to Sectionals | 2026-03-19 | 2026 NJS & Scarlet 11 & Over Gold Champs |
| 50 Freestyle | LCM | 30.28 | AAA+0.99s to AAAA·+1.99s to Sectionals | 2026-08-01 | 2026 EZ LC Age Group Championshipfast pool |
| 50 Backstroke | LCM | 37.18 | A+0.29s to AA·+6.29s to Futures | 2024-08-09 | 2024 EZ LC Age Group Championshipvenue |
| 100 Backstroke | LCM | 1:21.79 | A+1.00s to AA·+13.90s to Sectionals | 2024-08-08 | 2024 EZ LC Age Group Championshipvenue |
| 50 Breaststroke | LCM | 36.30 | AAAA·+1.51s to Futures | 2026-07-30 | 2026 EZ LC Age Group Championshipfast pool |
| 100 Breaststroke | LCM | 1:19.39 | AAAA·+1.50s to Sectionals | 2026-07-31 | 2026 EZ LC Age Group Championshipfast pool |
| 200 Breaststroke | LCM | 2:58.50 | AAA+0.51s to AAAA·+9.11s to Sectionals | 2026-08-01 | 2026 EZ LC Age Group Championshipfast pool |
| 50 Butterfly | LCM | 33.80 | AA+0.91s to AAA·+4.31s to Futures | 2026-07-31 | 2026 EZ LC Age Group Championshipfast pool |
| 200 Individual Medley | LCM | 2:43.52 | AAA+5.43s to AAAA·+15.13s to Sectionals | 2026-07-29 | 2026 EZ LC Age Group Championshipfast pool |
Cuts are USA Swimming single-age motivational standards (B → AAAA) at age 12.
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 |
|---|---|---|---|---|---|---|
| 50 Freestyle | LCM | 29.35 | flying | 200 Free Relay (leg 2) | 2026-07-29 | 2026 EZ LC Age Group Championship |
| 100 Freestyle | LCM | 1:04.78 | flying | 400 Free Relay (leg 4) | 2026-07-31 | 2026 EZ LC Age Group Championship |
| 50 Backstroke | LCM | 38.10 | flat | 200 Medley Relay | 2024-08-10 | 2024 EZ LC Age Group Championship |
| 100 Backstroke | LCM | 1:24.50 | flat | 400 Medley Relay | 2024-08-08 | 2024 EZ LC Age Group Championship |
| 50 Breaststroke | LCM | 36.93 | flying | 200 Medley Relay (leg 2) | 2026-08-01 | 2026 EZ LC Age Group Championship |
| 100 Breaststroke | LCM | 1:21.20 | flying | 400 Medley Relay (leg 2) | 2026-07-30 | 2026 EZ LC Age Group Championship |
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
2701 points (3/5 events — incomplete)
| Event | Time | Points |
|---|---|---|
| 100 BK LCM | 1:21.79 | 707 |
| 100 BR LCM | 1:19.39 | 1093 |
| 200 IM LCM | 2:43.52 | 901 |
| 400 FR LCM | — | 0 |
| 100 FL LCM | — | 0 |
IMR 11-12 · SCY
3742 points (4/5 events — incomplete)
| Event | Time | Points |
|---|---|---|
| 200 FR SCY | 2:07.43 | 875 |
| 50 BK SCY | 30.31 | 884 |
| 50 BR SCY | 31.80 | 1100 |
| 100 IM SCY | 1:06.59 | 883 |
| 50 FL SCY | — | 0 |
Scored against AAAA motivational base times: ordering is exact, absolute points run ~25% above the official USA Swimming scale.
PR splits
100 Backstroke SCY 1:14.55
Front half 36.58s · back half 37.97s
100 Backstroke LCM 1:21.79
Front half 40.50s · back half 41.29s
100 Breaststroke LCM 1:19.39
Front half 38.41s · back half 40.98s
200 Breaststroke LCM 2:58.50
Front half 87.34s · back half 91.16s
200 Individual Medley LCM 2:43.52
Front half 79.14s · back half 84.38s
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.