swimRenzhi Dong
Personal records
| Event | Course | Best | Cut | Date | Meet |
|---|---|---|---|---|---|
| 25 Freestyle | SCY | 16.71 | 2024-11-17 | 2024 NE CRA November Distance & Specialty venue | |
| 50 Freestyle | SCY | 31.92 | BB+0.73s to A | 2025-10-10 | 2025 NE CRA October Distance & Specialty Meet |
| 100 Freestyle | SCY | 1:10.40 | BB+0.21s to A | 2025-12-11 | 2025 NE CRA Winter Invitational |
| 200 Freestyle | SCY | 2:31.68 | A+6.29s to AA | 2025-12-11 | 2025 NE CRA Winter Invitational |
| 500 Freestyle | SCY | 6:49.67 | BB+6.08s to A | 2025-07-31 | 2025 NE CRA August End of Season Invite |
| 25 Backstroke | SCY | 19.09 | 2024-11-17 | 2024 NE CRA November Distance & Specialty venue | |
| 50 Backstroke | SCY | 36.00 | A+0.01s to AA | 2026-02-14 | 2026 NE SAC 10 & Under Champs fast pool |
| 100 Backstroke | SCY | 1:17.84 | A+1.55s to AA | 2026-02-15 | 2026 NE SAC 10 & Under Champs fast pool |
| 50 Breaststroke | SCY | 38.81 | AA+0.52s to AAA | 2025-12-11 | 2025 NE CRA Winter Invitational |
| 100 Breaststroke | SCY | 1:24.63 | AA+0.94s to AAA | 2025-11-14 | 2025 NECRA Nov Distance & Specialty Meet |
| 25 Butterfly | SCY | 18.97 | 2024-11-16 | 2024 NE CRA November Distance & Specialty venue | |
| 50 Butterfly | SCY | 33.60 | AA+1.01s to AAA | 2026-03-13 | 2026 NE CRA End of Season March Invitational |
| 100 Butterfly | SCY | 1:17.92 | AA+3.03s to AAA | 2025-12-11 | 2025 NE CRA Winter Invitational |
| 100 Individual Medley | SCY | 1:16.03 | AA+2.84s to AAA | 2025-12-11 | 2025 NE CRA Winter Invitational |
| 200 Individual Medley | SCY | 2:43.07 | AA+4.68s to AAA | 2025-12-11 | 2025 NE CRA Winter Invitational |
| 50 Freestyle | LCM | 34.82 | A+0.43s to AA | 2026-01-01 | 2026 ne sun summer solstice results |
| 100 Freestyle | LCM | 1:19.34 | A+2.55s to AA | 2025-07-27 | 2025 NE CRA July LC P/Fand Specialty Meet venue |
| 200 Freestyle | LCM | 2:49.04 | A+2.65s to AA | 2026-01-01 | 2026 ne sun summer solstice results |
| 50 Backstroke | LCM | 39.06 | AA+0.07s to AAA | 2026-05-08 | 2026 NE CRA MIT Team Specialty LC Meet |
| 100 Backstroke | LCM | 1:25.00 | AA+0.91s to AAA | 2026-01-01 | 2026 ne sun summer solstice results |
| 50 Breaststroke | LCM | 44.61 | AA+1.02s to AAA | 2026-01-01 | 2026 ne sun summer solstice results |
| 100 Breaststroke | LCM | 1:37.48 | AA+0.99s to AAA | 2026-05-08 | 2026 NE CRA MIT Team Specialty LC Meet |
| 50 Butterfly | LCM | 38.14 | AA+1.55s to AAA | 2026-01-01 | 2026 ne sun summer solstice results |
| 100 Butterfly | LCM | 1:31.78 | A+1.09s to AA | 2026-05-08 | 2026 NE CRA MIT Team Specialty LC Meet |
| 200 Individual Medley | LCM | 3:06.24 | AA+5.15s to AAA | 2026-05-08 | 2026 NE CRA MIT Team Specialty LC Meet |
Cuts are USA Swimming single-age motivational standards (B → AAAA) at age 10.
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 Breaststroke | SCY | 50.51 | flying | 200 Medley Relay (leg 2) | 2025-12-12 | 2025 NE CRA Winter Invitational |
| 50 Butterfly | SCY | 30.21 | flying | 200 Medley Relay (leg 3) | 2025-02-15 | 2025 NE UVAC 10 & Under 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 10 & under · LCM
3829 points (5/5 events)
| Event | Time | Points |
|---|---|---|
| 200 FR LCM | 2:49.04 | 722 |
| 100 BK LCM | 1:25.00 | 833 |
| 100 BR LCM | 1:37.48 | 832 |
| 100 FL LCM | 1:31.78 | 652 |
| 200 IM LCM | 3:06.24 | 790 |
IMR 10 & under · LCM
3875 points (5/5 events)
| Event | Time | Points |
|---|---|---|
| 100 FR LCM | 1:19.34 | 680 |
| 50 BK LCM | 39.06 | 849 |
| 50 BR LCM | 44.61 | 804 |
| 50 FL LCM | 38.14 | 752 |
| 200 IM LCM | 3:06.24 | 790 |
Scored against AAAA motivational base times: ordering is exact, absolute points run ~25% above the official USA Swimming scale.
PR splits
100 Freestyle SCY 1:10.40 split/total mismatch
Front half 33.96s · back half 36.44s
200 Freestyle SCY 2:31.68 split/total mismatch
500 Freestyle SCY 6:49.67 split/total mismatch
100 Backstroke SCY 1:17.84
Front half 38.49s · back half 39.35s
100 Breaststroke SCY 1:24.63 split/total mismatch
Front half 40.36s · back half 44.27s
100 Butterfly SCY 1:17.92 split/total mismatch
Front half 36.72s · back half 41.20s
100 Individual Medley SCY 1:16.03 split/total mismatch
Front half 36.01s · back half 40.02s
200 Individual Medley SCY 2:43.07 split/total mismatch
100 Freestyle LCM 1:19.34
Front half 37.52s · back half 41.82s
100 Backstroke LCM 1:25.00 split/total mismatch
Front half 41.68s · back half 43.32s
200 Individual Medley LCM 3:06.24 split/total mismatch
Front half 91.87s · back half 94.37s
Progression
Faster times are higher. One card per event, all courses & history.