Alex Du
Personal records
| Event | Course | Best | Cut | Date | Meet |
|---|---|---|---|---|---|
| 50 Freestyle | SCY | 44.42 | +9.33s to B | 2019-10-20 | 2019 Trick or Treat Meet venue |
| 50 Backstroke | SCY | 45.09 | +3.90s to B | 2020-02-02 | Delmar Dolfins February Freeze Invitational venue |
| 100 Breaststroke | SCY | 1:53.55 | +13.26s to B | 2019-10-13 | Delmar Dolfins Fall Challenge slow pool |
Cuts are USA Swimming single-age motivational standards (B → AAAA) at age 11.
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 | 1:06.06 | flying | 200 Free Relay (leg 4) | 2019-06-01 | Dolfins Spring Fling 12 & Under Mini 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
212 points (1/5 events — incomplete)
| Event | Time | Points |
|---|---|---|
| 100 BR SCY | 1:53.55 | 212 |
| 500 FR SCY | — | 0 |
| 100 BK SCY | — | 0 |
| 100 FL SCY | — | 0 |
| 200 IM SCY | — | 0 |
IMR 11-12 · SCY
244 points (1/5 events — incomplete)
| Event | Time | Points |
|---|---|---|
| 50 BK SCY | 45.09 | 244 |
| 200 FR SCY | — | 0 |
| 50 BR SCY | — | 0 |
| 50 FL SCY | — | 0 |
| 100 IM SCY | — | 0 |
Scored against AAAA motivational base times: ordering is exact, absolute points run ~25% above the official USA Swimming scale.
Progression
Faster times are higher. One card per event, all courses & history.