swimChenghao Xu
Personal records
| Event | Course | Best | Cut | Date | Meet |
|---|---|---|---|---|---|
| 50 Freestyle | SCY | 23.73 | A+0.04s to AA | 2024-10-20 | 2024 NE CRIM OCTOBER TEAM SPECIALTY W/ DIST venue |
| 100 Freestyle | SCY | 51.17 | AA+1.38s to AAA | 2024-10-19 | 2024 NE CRIM OCTOBER TEAM SPECIALTY W/ DIST venue |
| 200 Freestyle | SCY | 1:52.92 | AA+4.23s to AAA | 2024-02-22 | 2024 NE CRA 11-14 SCY Age Group Championship |
| 500 Freestyle | SCY | 5:06.80 | AA+11.11s to AAA | 2024-10-18 | 2024 NE CRIM OCTOBER TEAM SPECIALTY W/ DIST venue |
| 1000 Freestyle | SCY | 11:01.42 | A+17.63s to AA | 2024-10-26 | 2024 NE CRA Oct Distance & Specialty venue |
| 50 Backstroke | SCY | 27.12 | A+0.23s to AA | 2024-12-15 | 2024 NE CRA Winter Invitational venue |
| 100 Backstroke | SCY | 57.39 | A+0.30s to AA | 2025-01-04 | 2025 NE CRIM Jan Team Specialty venue |
| 200 Backstroke | SCY | 2:15.02 | BB+4.93s to A | 2024-08-02 | 2024 NE CRA August End of Season Invite venue |
| 50 Butterfly | SCY | 27.23 | A+0.64s to AA | 2024-08-02 | 2024 NE CRA August End of Season Invite venue |
| 100 Butterfly | SCY | 57.35 | A+0.96s to AA | 2025-01-05 | 2025 NE CRIM Jan Team Specialty venue |
| 100 Individual Medley | SCY | 1:00.60 | 2025-01-04 | 2025 NE CRIM Jan Team Specialty venue | |
| 50 Freestyle | LCM | 28.31 | A+0.92s to AA | 2024-07-28 | 2024 CRA July LC P/Fand Specialty Meet venue |
| 100 Freestyle | LCM | 1:00.66 | A+0.97s to AA | 2024-07-27 | 2024 CRA July LC P/Fand Specialty Meet venue |
| 200 Freestyle | LCM | 2:13.25 | A+1.76s to AA | 2024-06-01 | 2024 NE CRA MIT Team Specialty LC Meet venue |
| 400 Freestyle | LCM | 4:44.52 | A+4.63s to AA | 2024-07-26 | 2024 CRA July LC P/Fand Specialty Meet venue |
| 100 Backstroke | LCM | 1:12.82 | BB+3.23s to A | 2024-07-27 | 2024 CRA July LC P/Fand Specialty Meet venue |
| 200 Backstroke | LCM | 2:41.53 | BB+10.44s to A | 2024-07-28 | 2024 CRA July LC P/Fand Specialty Meet venue |
| 100 Butterfly | LCM | 1:07.88 | BB+0.59s to A | 2024-07-27 | 2024 CRA July LC P/Fand Specialty Meet venue |
Cuts are USA Swimming single-age motivational standards (B → AAAA) at age 15.
Fastest relay legs
| Leg | Course | Time | Start | Relay | Date | Meet |
|---|---|---|---|---|---|---|
| 50 Freestyle | SCY | 23.76 | flat | 200 Free Relay | 2024-02-23 | 2024 NE CRA 11-14 SCY Age Group Championship |
| 100 Freestyle | SCY | 52.07 | flat | 400 Free Relay | 2024-03-23 | 2024 EZ North Region Speedo Sectional Champs |
| 100 Freestyle | SCY | 51.65 | flying | 400 Free Relay (leg 4) | 2024-02-25 | 2024 NE CRA 11-14 SCY Age Group Championship |
| 50 Backstroke | SCY | 27.96 | 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 15-16 · SCY
1280 points (2/6 events — incomplete)
| Event | Time | Points |
|---|---|---|
| 500 FR SCY | 5:06.80 | 730 |
| 200 BK SCY | 2:15.02 | 550 |
| 200 BR SCY | — | 0 |
| 200 FL SCY | — | 0 |
| 200 IM SCY | — | 0 |
| 400 IM SCY | — | 0 |
IMR 15-16 · SCY
2103 points (3/5 events — incomplete)
| Event | Time | Points |
|---|---|---|
| 200 FR SCY | 1:52.92 | 736 |
| 100 BK SCY | 57.39 | 689 |
| 100 FL SCY | 57.35 | 678 |
| 100 BR SCY | — | 0 |
| 200 IM SCY | — | 0 |
Scored against AAAA motivational base times: ordering is exact, absolute points run ~25% above the official USA Swimming scale.
PR splits
100 Freestyle SCY 51.17
Front half 24.63s · back half 26.54s
200 Freestyle SCY 1:52.92 split/total mismatch
500 Freestyle SCY 5:06.80
Front half 149.28s · back half 157.52s
1000 Freestyle SCY 11:01.42
Front half 326.86s · back half 334.56s
100 Backstroke SCY 57.39
Front half 27.95s · back half 29.44s
200 Backstroke SCY 2:15.02
Front half 64.59s · back half 70.43s
100 Butterfly SCY 57.35
Front half 27.00s · back half 30.35s
100 Individual Medley SCY 1:00.60
Front half 26.98s · back half 33.62s
100 Freestyle LCM 1:00.66
Front half 29.06s · back half 31.60s
200 Freestyle LCM 2:13.25
Front half 63.47s · back half 69.78s
400 Freestyle LCM 4:44.52
Front half 135.37s · back half 149.15s
100 Backstroke LCM 1:12.82
Front half 35.52s · back half 37.30s
200 Backstroke LCM 2:41.53
Front half 77.40s · back half 84.13s
100 Butterfly LCM 1:07.88
Front half 31.91s · back half 35.97s
Progression
Faster times are higher. One card per event, all courses & history.