swimDavid Zhou
Personal records
| Event | Course | Best | Cut | Date | Meet |
|---|---|---|---|---|---|
| 50 Freestyle | SCY | 24.72 | AAA+0.13s to AAAA·+1.53s to Sectionals | 2025-11-24 | 1663578 |
| 100 Freestyle | SCY | 57.09 | AA+0.90s to AAA·+6.10s to Sectionals | 2025-02-22 | 2025 PN IST Feb Invitational |
| 200 Freestyle | SCY | 2:25.02 | B+0.13s to BB·+33.23s to Sectionals | 2026-02-27 | 2026 PN February AGI, Div 1-Approved |
| 500 Freestyle | SCY | 5:16.74 | AAA+1.75s to AAAA·+14.05s to Sectionals | 2025-03-07 | 2025 BBST Seize the Day Invitational |
| 50 Backstroke | SCY | 31.59 | A+0.40s to AA·+7.90s to Futures | 2026-02-16 | 2026 PN IST Feb Winter Invitational-Approved |
| 100 Backstroke | SCY | 1:09.25 | A+3.26s to AA·+13.76s to Sectionals | 2024-02-04 | 2024 PN IST February Time Trial Invitational |
| 200 Backstroke | SCY | 2:35.24 | BB+7.05s to A·+33.95s to Sectionals | 2025-11-24 | 1663578 |
| 50 Breaststroke | SCY | 42.31 | B+2.22s to BB·+16.02s to Futures | 2025-11-23 | 2025 PN November AGI, Div 3 (UPAC) venue |
| 100 Breaststroke | SCY | 1:30.02 | B+4.53s to BB·+26.83s to Sectionals | 2026-01-01 | Sanction #: 2603-SP04 |
| 200 Breaststroke | SCY | 3:19.39 | +2.90s to B·+62.10s to Sectionals | 2026-01-24 | 2026 PN IST January Invitational |
| 50 Butterfly | SCY | 35.06 | B+0.87s to BB·+12.17s to Futures | 2025-11-23 | 2025 PN November AGI, Div 3 (UPAC) venue |
| 100 Butterfly | SCY | 1:21.17 | B+5.08s to BB·+25.98s to Sectionals | 2026-01-24 | 2026 PN IST January Invitational |
| 100 Individual Medley | SCY | 1:06.92 | AA+2.93s to AAA | 2025-03-29 | 2025 PN Spring Finale, Division 1 |
| 200 Individual Medley | SCY | 2:44.79 | BB+12.50s to A·+40.80s to Sectionals | 2026-01-01 | Sanction #: 2603-SP04 |
| 50 Freestyle | LCM | 32.82 | BB+0.73s to A·+5.83s to Sectionals | 2026-06-14 | 2026 PN IST June Invtational- Approved venue |
| 100 Freestyle | LCM | 1:14.65 | BB+4.26s to A·+15.66s to Sectionals | 2026-05-17 | 2026 PN IST Sockeye Springtime Madness App. venue |
| 200 Freestyle | LCM | 2:42.69 | BB+9.10s to A·+34.00s to Sectionals | 2026-05-21 | 2026 PN IST Sockeye Springtime Madness App. |
| 400 Freestyle | LCM | 6:09.20 | B+15.21s to BB·+94.81s to Sectionals | 2026-06-13 | 2026 PN IST June Invtational- Approved venue |
| 50 Backstroke | LCM | 39.47 | BB+1.68s to A·+11.58s to Futures | 2026-05-17 | 2026 PN IST Sockeye Springtime Madness App. venue |
| 100 Backstroke | LCM | 1:41.95 | +4.76s to B·+36.76s to Sectionals | 2025-05-03 | 2025 PN BC May Flowers venue |
| 200 Backstroke | LCM | 3:12.83 | B+4.34s to BB·+51.34s to Sectionals | 2026-06-13 | 2026 PN IST June Invtational- Approved venue |
| 50 Breaststroke | LCM | 47.93 | B+2.04s to BB·+17.04s to Futures | 2026-05-16 | 2026 PN IST Sockeye Springtime Madness App. venue |
| 100 Breaststroke | LCM | 1:58.59 | +10.80s to B·+44.89s to Sectionals | 2025-06-14 | 2025 IST June Invtational venue |
| 200 Breaststroke | LCM | 3:16.57 | BB+1.18s to A·+35.69s to Sectionals | 2026-06-13 | 2026 PN IST June Invtational- Approved |
| 50 Butterfly | LCM | 37.70 | BB+2.41s to A·+11.41s to Futures | 2026-06-13 | 2026 PN IST June Invtational- Approved venue |
| 100 Butterfly | LCM | 1:31.03 | B+3.74s to BB·+27.94s to Sectionals | 2026-05-16 | 2026 PN IST Sockeye Springtime Madness App. venue |
| 200 Individual Medley | LCM | 3:13.51 | B+3.92s to BB·+48.82s to Sectionals | 2026-05-16 | 2026 PN IST Sockeye Springtime Madness App. venue |
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.
Fastest relay legs
| Leg | Course | Time | Start | Relay | Date | Meet |
|---|---|---|---|---|---|---|
| 100 Freestyle | SCY | 1:03.53 | flying | 400 Medley Relay (leg 4) | 2026-03-21 | 2026 NW Region Age Group Champs- Approved |
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 · SCY
2943 points (5/5 events)
| Event | Time | Points |
|---|---|---|
| 500 FR SCY | 5:16.74 | 983 |
| 100 BK SCY | 1:09.25 | 633 |
| 100 BR SCY | 1:30.02 | 427 |
| 100 FL SCY | 1:21.17 | 385 |
| 200 IM SCY | 2:44.79 | 515 |
IMR 11-12 · SCY
2848 points (5/5 events)
| Event | Time | Points |
|---|---|---|
| 200 FR SCY | 2:25.02 | 525 |
| 50 BK SCY | 31.59 | 710 |
| 50 BR SCY | 42.31 | 412 |
| 50 FL SCY | 35.06 | 441 |
| 100 IM SCY | 1:06.92 | 760 |
Scored against AAAA motivational base times: ordering is exact, absolute points run ~25% above the official USA Swimming scale.
PR splits
200 Freestyle SCY 2:25.02 split/total mismatch
Front half 76.40s · back half 68.62s
400 Freestyle LCM 6:09.20 RT 0.66s
Front half 181.09s · back half 188.11s
200 Backstroke LCM 3:12.83 RT 0.65s
Front half 92.93s · back half 99.90s
200 Individual Medley LCM 3:13.51 RT 0.67s· 16.3 min after 100 Butterfly
Front half 89.25s · back half 104.26s
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.