swimYiyin Mao
Personal records
| Event | Course | Best | Cut | Date | Meet |
|---|---|---|---|---|---|
| 50 Freestyle | SCY | 30.95 | BB+1.56s to A | 2025-03-07 | 2025 Northwest Region YMCA Championships |
| 100 Freestyle | SCY | 1:07.16 | BB+3.07s to A | 2025-01-11 | 2025 PN PSSA Snowman Invite- Approved slow pool |
| 200 Freestyle | SCY | 2:31.38 | BB+11.39s to A | 2025-03-07 | 2025 Northwest Region YMCA Championships |
| 50 Backstroke | SCY | 33.52 | BB+0.23s to A | 2025-03-01 | 2025 WA YMCA State Championship Meet slow pool |
| 100 Backstroke | SCY | 1:13.00 | BB+0.01s to A | 2025-03-01 | 2025 WA YMCA State Championship Meet slow pool |
| 200 Backstroke | SCY | 2:42.45 | BB+8.06s to A | 2025-03-07 | 2025 Northwest Region YMCA Championships |
| 50 Breaststroke | SCY | 40.54 | BB+2.85s to A | 2024-01-27 | 2024 WA State Championship Meet |
| 100 Breaststroke | SCY | 1:35.62 | B+6.23s to BB | 2024-01-27 | 2024 WA State Championship Meet venue |
| 200 Breaststroke | SCY | 3:08.57 | BB+12.08s to A | 2025-01-11 | 2025 PN PSSA Snowman Invite- Approved slow pool |
| 100 Individual Medley | SCY | 1:15.75 | BB+2.66s to A | 2025-03-07 | 2025 Northwest Region YMCA Championships venue |
Cuts are USA Swimming single-age motivational standards (B → AAAA) at age 12.
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 | SCY | 30.99 | flat | 200 Free Relay | 2025-03-01 | 2025 WA YMCA State Championship Meet |
| 50 Butterfly | SCY | 34.60 | flying | 200 Medley Relay (leg 3) | 2025-03-01 | 2025 WA YMCA State Championship Meet |
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
1050 points (2/5 events — incomplete)
| Event | Time | Points |
|---|---|---|
| 100 BK SCY | 1:13.00 | 633 |
| 100 BR SCY | 1:35.62 | 417 |
| 500 FR SCY | — | 0 |
| 100 FL SCY | — | 0 |
| 200 IM SCY | — | 0 |
IMR 11-12 · SCY
2312 points (4/5 events — incomplete)
| Event | Time | Points |
|---|---|---|
| 200 FR SCY | 2:31.38 | 522 |
| 50 BK SCY | 33.52 | 653 |
| 50 BR SCY | 40.54 | 538 |
| 100 IM SCY | 1:15.75 | 599 |
| 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 1:13.00
Front half 34.47s · back half 38.53s
100 Breaststroke SCY 1:35.62 RT 0.80s
Front half 44.36s · back half 51.26s
100 Individual Medley SCY 1:15.75
Front half 33.95s · back half 41.80s
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.