swimMark Zeng
Personal records
| Event | Course | Best | Cut | Date | Meet |
|---|---|---|---|---|---|
| 25 Freestyle | SCY | 22.07 | 2024-11-01 | 2024 THSC Friday Night Thunder Novembervenue | |
| 50 Freestyle | SCY | 35.49 | +0.40s to B·+12.30s to Sectionals | 2026-01-18 | 2026 THSC 14&U Winter Showcasevenue |
| 100 Freestyle | SCY | 1:22.04 | +5.95s to B·+31.05s to Sectionals | 2026-02-07 | 2026 Forest Grove Coast Range Qualifiervenue |
| 200 Freestyle | SCY | 2:54.09 | +7.50s to B·+62.30s to Sectionals | 2026-02-08 | 2026 Forest Grove Coast Range Qualifiervenue |
| 25 Backstroke | SCY | 25.68 | 2025-01-31 | 2025 THSC January FNTvenue | |
| 50 Backstroke | SCY | 49.76 | +8.57s to B·+26.07s to Futures | 2025-11-08 | 2025 THSC November Openvenue |
| 100 Backstroke | SCY | 1:46.07 | +16.28s to B·+50.58s to Sectionals | 2025-12-05 | 2025 Tualatin Hills Holiday Classicvenue |
| 25 Breaststroke | SCY | 29.24 | 2024-10-11 | 2024 THSC Friday Night Thunder Octobervenue | |
| 50 Breaststroke | SCY | 51.95 | +5.06s to B·+25.66s to Futures | 2025-11-09 | 2025 THSC November Openvenue |
| 100 Breaststroke | SCY | 1:52.22 | +11.93s to B·+49.03s to Sectionals | 2026-02-07 | 2026 Forest Grove Coast Range Qualifiervenue |
| 25 Butterfly | SCY | 29.22 | 2024-11-01 | 2024 THSC Friday Night Thunder Novembervenue | |
| 50 Butterfly | SCY | 37.15 | B+0.26s to BB·+14.26s to Futures | 2026-01-01 | 2026 Oregon Swimming Arena SC 11-14 Age Group Championships, S#: 26-008 |
| 100 Butterfly | SCY | 1:22.27 | BB+6.68s to A·+27.08s to Sectionals | 2026-03-06 | 2026 OSI Arena SC 11-14 Champsfast pool |
| 100 Individual Medley | SCY | 1:35.79 | +7.70s to B | 2026-01-18 | 2026 THSC 14&U Winter Showcasevenue |
| 200 Individual Medley | SCY | 3:20.61 | +7.92s to B·+76.62s to Sectionals | 2026-01-16 | 2026 THSC 14&U Winter Showcasevenue |
| 50 Freestyle | LCM | 37.14 | B+0.05s to BB·+10.15s to Sectionals | 2026-06-14 | 2026 THSC June Openvenue |
| 100 Freestyle | LCM | 1:19.41 | BB+4.12s to A·+20.42s to Sectionals | 2026-07-12 | 2026 OSI Arena Summer LC 12&U Championships -fast pool |
| 200 Freestyle | LCM | 2:56.88 | B+0.69s to BB·+48.19s to Sectionals | 2026-07-11 | 2026 OSI Arena Summer LC 12&U Championships -fast pool |
| 50 Backstroke | LCM | 48.46 | +0.87s to B·+20.57s to Futures | 2026-05-24 | 2026 THSC Memorial Weekend Meetvenue |
| 100 Backstroke | LCM | 1:47.83 | +3.14s to B·+42.64s to Sectionals | 2026-06-14 | 2026 THSC June Openvenue |
| 50 Breaststroke | LCM | 1:02.63 | +9.24s to B·+31.74s to Futures | 2025-06-08 | 2025 THSC June Invitationalvenue |
| 100 Breaststroke | LCM | 1:53.17 | B+4.98s to BB·+39.47s to Sectionals | 2026-06-13 | 2026 THSC June Openvenue |
| 50 Butterfly | LCM | 41.51 | BB+3.52s to A·+15.22s to Futures | 2026-05-23 | 2026 THSC Memorial Weekend Meetvenue |
| 100 Butterfly | LCM | 1:29.79 | BB+3.30s to A·+26.70s to Sectionals | 2026-07-12 | 2026 OSI Arena Summer LC 12&U Championships -fast pool |
Cuts are USA Swimming single-age motivational standards (B → AAAA) at age 11.
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 Butterfly | SCY | 1:23.43 | flying | 400 Medley Relay (leg 3) | 2026-03-06 | 2026 OSI Arena SC 11-14 Champs |
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
1051 points (4/5 events — incomplete)
| Event | Time | Points |
|---|---|---|
| 100 BK SCY | 1:46.07 | 176 |
| 100 BR SCY | 1:52.22 | 220 |
| 100 FL SCY | 1:22.27 | 370 |
| 200 IM SCY | 3:20.61 | 285 |
| 500 FR SCY | — | 0 |
IMR 11-12 · SCY
1335 points (5/5 events)
| Event | Time | Points |
|---|---|---|
| 200 FR SCY | 2:54.09 | 303 |
| 50 BK SCY | 49.76 | 181 |
| 50 BR SCY | 51.95 | 222 |
| 50 FL SCY | 37.15 | 370 |
| 100 IM SCY | 1:35.79 | 259 |
Scored against AAAA motivational base times: ordering is exact, absolute points run ~25% above the official USA Swimming scale.
PR splits
100 Freestyle SCY 1:22.04
Front half 37.70s · back half 44.34s
200 Freestyle SCY 2:54.09
100 Backstroke SCY 1:46.07
Front half 50.72s · back half 55.35s
100 Breaststroke SCY 1:52.22
Front half 50.45s · back half 61.77s
100 Butterfly SCY 1:22.27
Front half 37.24s · back half 45.03s
100 Individual Medley SCY 1:35.79
Front half 44.21s · back half 51.58s
200 Individual Medley SCY 3:20.61
Front half 95.98s · back half 104.63s
100 Freestyle LCM 1:19.41
Front half 37.46s · back half 41.95s
200 Freestyle LCM 2:56.88
Front half 84.51s · back half 92.37s
100 Backstroke LCM 1:47.83
Front half 52.27s · back half 55.56s
100 Breaststroke LCM 1:53.17
Front half 53.33s · back half 59.84s
100 Butterfly LCM 1:29.79
Front half 40.99s · back half 48.80s
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.