swimNathaniel Du
Personal records
| Event | Course | Best | Cut | Date | Meet |
|---|---|---|---|---|---|
| 50 Freestyle | SCY | 29.38 | BB+1.29s to A | 2026-02-07 | 2026 ST AQTX STX Champs North venue |
| 100 Freestyle | SCY | 1:04.28 | BB+2.99s to A | 2026-01-17 | 2026 ST AQTX B Champs North venue |
| 200 Freestyle | SCY | 2:16.97 | BB+3.28s to A | 2026-01-31 | 2026 ST NTRO Fiery Flames venue |
| 500 Freestyle | SCY | 6:03.93 | BB+3.94s to A | 2026-02-08 | 2026 ST AQTX STX Champs North venue |
| 50 Backstroke | SCY | 33.01 | BB+0.32s to A | 2026-02-08 | 2026 ST AQTX STX Champs North venue |
| 100 Backstroke | SCY | 1:08.57 | A+2.58s to AA | 2026-02-07 | 2026 ST AQTX STX Champs North venue |
| 200 Backstroke | SCY | 2:26.70 | A+4.71s to AA | 2026-02-08 | 2026 ST AQTX STX Champs North venue |
| 50 Breaststroke | SCY | 38.48 | BB+1.79s to A | 2026-01-17 | 2026 ST AQTX B Champs North venue |
| 100 Breaststroke | SCY | 1:23.62 | BB+5.23s to A | 2026-01-18 | 2026 ST AQTX B Champs North venue |
| 200 Breaststroke | SCY | 3:05.14 | B+2.75s to BB | 2025-09-27 | 2025 ST NTRO Autumn Classic venue |
| 50 Butterfly | SCY | 34.14 | BB+2.95s to A | 2026-01-17 | 2026 ST AQTX B Champs North venue |
| 100 Butterfly | SCY | 1:17.91 | B+1.82s to BB | 2026-01-18 | 2026 ST AQTX B Champs North venue |
| 100 Individual Medley | SCY | 1:08.44 | A+1.45s to AA | 2025-02-21 | 2025 ST AAAA STAGS Championship |
| 200 Individual Medley | SCY | 2:38.19 | BB+5.90s to A | 2026-01-31 | 2026 ST NTRO Fiery Flames venue |
| 400 Individual Medley | SCY | 5:23.62 | BB+0.13s to A | 2026-02-06 | 2026 ST AQTX STX Champs North venue |
| 50 Freestyle | LCM | 32.18 | BB+0.09s to A | 2026-06-26 | 2026 NEAT Long Course STX Championship |
| 100 Freestyle | LCM | 1:06.59 | AA+2.10s to AAA | 2026-06-11 | 2026 ST NIST George Block Invitational |
| 200 Freestyle | LCM | 2:31.79 | A+4.60s to AA | 2025-06-27 | 2025 ST HPAC Long Course STX Championship |
| 400 Freestyle | LCM | 5:24.63 | A+11.54s to AA | 2026-06-26 | 2026 NEAT Long Course STX Championship venue |
| 800 Freestyle | LCM | 12:18.03 | BB+50.14s to A | 2025-06-08 | 2025 ST NTRO LC June Distance Invite venue |
| 50 Backstroke | LCM | 36.72 | A+0.63s to AA | 2026-06-26 | 2026 NEAT Long Course STX Championship venue |
| 100 Backstroke | LCM | 1:19.65 | A+1.56s to AA | 2026-04-25 | 2026 ST TXLA 11&O Long Course Kick Off venue |
| 200 Backstroke | LCM | 2:48.08 | A+1.39s to AA | 2026-04-26 | 2026 ST TXLA 11&O Long Course Kick Off venue |
| 50 Breaststroke | LCM | 41.92 | A+1.93s to AA | 2026-06-26 | 2026 NEAT Long Course STX Championship |
| 100 Breaststroke | LCM | 1:45.51 | B+5.92s to BB | 2025-05-25 | 2025 ST NTRO LC School's Out |
| 200 Breaststroke | LCM | 3:11.31 | A+4.12s to AA | 2026-06-26 | 2026 NEAT Long Course STX Championship |
| 50 Butterfly | LCM | 36.91 | BB+1.62s to A | 2026-05-17 | 2026 ST TXLA 11&O End of School Splash venue |
| 100 Butterfly | LCM | 1:26.11 | BB+6.62s to A | 2026-06-20 | 2026 ST NTRO LC Summer Classic venue |
| 200 Individual Medley | LCM | 2:52.75 | A+6.26s to AA | 2026-05-17 | 2026 ST TXLA 11&O End of School Splash venue |
| 400 Individual Medley | LCM | 5:39.72 | AAA+11.33s to AAAA | 2026-06-11 | 2026 ST NIST George Block Invitational |
Cuts are USA Swimming single-age motivational standards (B → AAAA) at age 12.
Fastest relay legs
| Leg | Course | Time | Start | Relay | Date | Meet |
|---|---|---|---|---|---|---|
| 100 Freestyle | SCY | 1:12.40 | flat | 400 Free Relay | 2025-02-22 | 2025 ST AAAA STAGS Championship |
| 50 Breaststroke | SCY | 37.28 | flying | 200 Medley Relay (leg 2) | 2026-01-17 | 2026 ST AQTX B Champs North |
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 · LCM
2941 points (5/5 events)
| Event | Time | Points |
|---|---|---|
| 400 FR LCM | 5:24.63 | 683 |
| 100 BK LCM | 1:19.65 | 690 |
| 100 BR LCM | 1:45.51 | 419 |
| 100 FL LCM | 1:26.11 | 487 |
| 200 IM LCM | 2:52.75 | 662 |
IMR 11-12 · LCM
3245 points (5/5 events)
| Event | Time | Points |
|---|---|---|
| 200 FR LCM | 2:31.79 | 694 |
| 50 BK LCM | 36.72 | 699 |
| 50 BR LCM | 41.92 | 638 |
| 50 FL LCM | 36.91 | 552 |
| 200 IM LCM | 2:52.75 | 662 |
Scored against AAAA motivational base times: ordering is exact, absolute points run ~25% above the official USA Swimming scale.
PR splits
100 Freestyle SCY 1:04.28
Front half 30.82s · back half 33.46s
200 Freestyle SCY 2:16.97
Front half 65.44s · back half 71.53s
500 Freestyle SCY 6:03.93
Front half 177.97s · back half 185.96s
100 Backstroke SCY 1:08.57 RT 0.54s
Front half 33.36s · back half 35.21s
200 Backstroke SCY 2:26.70 RT 0.56s
Front half 71.81s · back half 74.89s
100 Breaststroke SCY 1:23.62
Front half 39.95s · back half 43.67s
200 Breaststroke SCY 3:05.14
Front half 90.08s · back half 95.06s
100 Butterfly SCY 1:17.91
Front half 35.22s · back half 42.69s
100 Individual Medley SCY 1:08.44
200 Individual Medley SCY 2:38.19
Front half 75.37s · back half 82.82s
400 Individual Medley SCY 5:23.62
Front half 158.91s · back half 164.71s
400 Freestyle LCM 5:24.63
Front half 159.66s · back half 164.97s
800 Freestyle LCM 12:18.03
Front half 370.59s · back half 367.44s
200 Backstroke LCM 2:48.08
Front half 82.32s · back half 85.76s
100 Butterfly LCM 1:26.11 · 60.0 min after 200 Freestyle
Front half 39.11s · back half 47.00s
200 Individual Medley LCM 2:52.75
Front half 82.22s · back half 90.53s
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.