swimDavid Xu
Personal records
| Event | Course | Best | Cut | Date | Meet |
|---|---|---|---|---|---|
| 50 Freestyle | SCY | 22.33 | AA+0.24s to AAA | 2025-03-20 | 2025 NJS & Scarlet Gold Championship |
| 200 Freestyle | SCY | 1:44.00 | AAA+2.51s to AAAA | 2025-03-20 | 2025 NJS & Scarlet Gold Championship |
| 500 Freestyle | SCY | 5:53.09 | B+12.00s to BB | 2018-03-29 | 2018 Eastern Zone Short Course Championships |
| 50 Backstroke | SCY | 1:12.94 | +41.75s to B | 2018-03-29 | 2018 Eastern Zone Short Course Championships |
| 100 Backstroke | SCY | 52.02 | AAA+1.93s to AAAA | 2025-03-29 | 2025 EZ North Speedo Short Course Sectionals venue |
| 200 Backstroke | SCY | 1:52.50 | AAA+2.91s to AAAA | 2024-03-24 | 2024 EZ North Region Speedo Sectional Champs venue |
| 100 Breaststroke | SCY | 1:16.36 | +0.87s to B | 2018-03-29 | 2018 Eastern Zone Short Course Championships |
| 200 Butterfly | SCY | 1:50.98 | AAAA | 2024-03-21 | 2024 EZ North Region Speedo Sectional Champs |
| 200 Individual Medley | SCY | 1:53.99 | AAA+1.80s to AAAA | 2024-03-24 | 2024 EZ North Region Speedo Sectional Champs venue |
| 400 Individual Medley | SCY | 4:00.69 | AAAA | 2024-03-22 | 2024 EZ North Region Speedo Sectional Champs venue |
| 50 Freestyle | LCM | 2:20.76 | +108.27s to B | 2024-08-01 | 2024 LC Senior Zone Championship |
| 200 Backstroke | LCM | 2:20.76 | AA+5.97s to AAA | 2024-08-04 | 2024 LC Senior Zone Championship venue |
| 100 Butterfly | LCM | 59.40 | AAA+2.41s to AAAA | 2024-08-02 | 2024 LC Senior Zone Championship venue |
| 200 Butterfly | LCM | 2:10.20 | AAA+3.01s to AAAA | 2024-08-03 | 2024 LC Senior Zone Championship venue |
| 200 Individual Medley | LCM | 2:13.12 | AAA+3.13s to AAAA | 2024-08-01 | 2024 LC Senior Zone Championship |
| 400 Individual Medley | LCM | 4:54.63 | AA+2.24s to AAA | 2024-08-02 | 2024 LC Senior Zone Championship venue |
Cuts are USA Swimming single-age motivational standards (B → AAAA) at age 17.
Fastest relay legs
| Leg | Course | Time | Start | Relay | Date | Meet |
|---|---|---|---|---|---|---|
| 50 Freestyle | SCY | 21.85 | flying | 200 Free Relay (leg 2) | 2024-03-24 | 2024 EZ North Region Speedo Sectional Champs |
| 200 Freestyle | SCY | 1:43.17 | flying | 800 Free Relay (leg 4) | 2025-03-28 | 2025 EZ North Speedo Short Course Sectionals |
| 50 Backstroke | SCY | 25.40 | flat | 200 Medley Relay | 2024-03-23 | 2024 EZ North Region Speedo Sectional 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 17-18 · SCY
4188 points (5/6 events — incomplete)
| Event | Time | Points |
|---|---|---|
| 500 FR SCY | 5:53.09 | 459 |
| 200 BK SCY | 1:52.50 | 882 |
| 200 FL SCY | 1:50.98 | 968 |
| 200 IM SCY | 1:53.99 | 913 |
| 400 IM SCY | 4:00.69 | 966 |
| 200 BR SCY | — | 0 |
IMR 17-18 · SCY
3031 points (4/5 events — incomplete)
| Event | Time | Points |
|---|---|---|
| 200 FR SCY | 1:44.00 | 894 |
| 100 BK SCY | 52.02 | 830 |
| 100 BR SCY | 1:16.36 | 394 |
| 200 IM SCY | 1:53.99 | 913 |
| 100 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 52.02
Front half 25.12s · back half 26.90s
200 Backstroke SCY 1:52.50
Front half 55.92s · back half 56.58s
100 Breaststroke SCY 1:16.36
200 Butterfly SCY 1:50.98
Front half 52.56s · back half 58.42s
200 Individual Medley SCY 1:53.99
Front half 52.91s · back half 61.08s
400 Individual Medley SCY 4:00.69
Front half 114.05s · back half 126.64s
200 Backstroke LCM 2:20.76
Front half 67.58s · back half 73.18s
100 Butterfly LCM 59.40
Front half 27.85s · back half 31.55s
200 Butterfly LCM 2:10.20
Front half 60.83s · back half 69.37s
200 Individual Medley LCM 2:13.12 split/total mismatch
400 Individual Medley LCM 4:54.63
Front half 137.93s · back half 156.70s
Progression
Faster times are higher. One card per event, all courses & history.