swimNathan Stoffregen
Personal records
| Event | Course | Best | Cut | Date | Meet |
|---|---|---|---|---|---|
| 25 Freestyle | SCY | 29.29 | 2019-12-07 | LCN 2019 Reindeer Splash venue | |
| 50 Freestyle | SCY | 31.67 | +0.58s to B | 2026-02-27 | 2026 IES Short Course Championships fast pool |
| 100 Freestyle | SCY | 1:13.77 | +6.18s to B | 2026-01-18 | 2026 Hells Canyon Invitational fast pool |
| 200 Freestyle | SCY | 2:58.10 | +30.31s to B | 2025-09-28 | Cougar Fall Fury fast pool |
| 25 Backstroke | SCY | 37.97 | 2020-01-04 | January Storm venue | |
| 50 Backstroke | SCY | 38.78 | +3.39s to B | 2026-01-18 | 2026 Hells Canyon Invitational fast pool |
| 100 Backstroke | SCY | 1:24.12 | +9.73s to B | 2026-01-17 | 2026 Hells Canyon Invitational fast pool |
| 50 Breaststroke | SCY | 43.69 | +3.20s to B | 2026-01-17 | 2026 Hells Canyon Invitational fast pool |
| 100 Breaststroke | SCY | 1:31.72 | +7.43s to B | 2026-02-27 | 2026 IES Short Course Championships fast pool |
| 200 Breaststroke | SCY | 3:29.13 | +26.14s to B | 2024-12-07 | 2024 SWAT Winter Invite venue |
| 50 Butterfly | SCY | 37.44 | +2.75s to B | 2026-01-18 | 2026 Hells Canyon Invitational fast pool |
| 100 Individual Medley | SCY | 1:26.26 | 2024-12-08 | 2024 SWAT Winter Invite venue | |
| 200 Individual Medley | SCY | 2:50.45 | +5.76s to B | 2026-01-17 | 2026 Hells Canyon Invitational fast pool |
| 50 Freestyle | LCM | 35.71 | +0.02s to B | 2026-07-05 | Pendleton Open 2026 venue |
| 100 Freestyle | LCM | 1:17.89 | B+5.30s to BB | 2026-05-16 | 2026 Chris Engledow Memorial Meet venue |
| 200 Freestyle | LCM | 2:53.75 | +3.76s to B | 2026-07-04 | Pendleton Open 2026 venue |
| 400 Freestyle | LCM | 6:10.11 | +10.22s to B | 2026-05-17 | 2026 Chris Engledow Memorial Meet venue |
| 800 Freestyle | LCM | 12:50.14 | +18.85s to B | 2026-05-16 | 2026 Chris Engledow Memorial Meet venue |
| 50 Backstroke | LCM | 42.40 | +1.21s to B | 2026-07-05 | Pendleton Open 2026 venue |
| 100 Backstroke | LCM | 1:35.41 | +8.02s to B | 2025-05-17 | 2025 Chris Engledow Memorial Meet venue |
| 200 Backstroke | LCM | 3:07.03 | B+10.84s to BB | 2026-05-16 | 2026 Chris Engledow Memorial Meet venue |
| 50 Breaststroke | LCM | 47.28 | +1.39s to B | 2026-07-04 | Pendleton Open 2026 venue |
| 100 Breaststroke | LCM | 1:42.28 | +5.09s to B | 2026-07-05 | Pendleton Open 2026 venue |
| 200 Breaststroke | LCM | 3:48.71 | +15.32s to B | 2025-07-06 | Pendleton Open 2025 venue |
| 50 Butterfly | LCM | 37.20 | B+0.91s to BB | 2026-05-16 | 2026 Chris Engledow Memorial Meet venue |
| 100 Butterfly | LCM | 1:36.02 | +11.93s to B | 2026-05-17 | 2026 Chris Engledow Memorial Meet venue |
| 200 Individual Medley | LCM | 3:09.96 | B+13.17s to BB | 2026-07-05 | Pendleton Open 2026 venue |
Cuts are USA Swimming single-age motivational standards (B → AAAA) at age 13.
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 | 31.57 | flying | 200 Free Relay (leg 3) | 2026-03-01 | 2026 IES Short Course Championships |
| 50 Backstroke | SCY | 38.84 | flat | 200 Medley Relay | 2026-01-17 | 2026 Hells Canyon Invitational |
| 50 Butterfly | SCY | 41.36 | flying | 200 Medley Relay (leg 3) | 2025-01-11 | 2025 Hells Canyon Invitational |
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 13-14 · LCM
1407 points (4/6 events — incomplete)
| Event | Time | Points |
|---|---|---|
| 400 FR LCM | 6:10.11 | 351 |
| 200 BK LCM | 3:07.03 | 386 |
| 200 BR LCM | 3:48.71 | 294 |
| 200 IM LCM | 3:09.96 | 376 |
| 200 FL LCM | — | 0 |
| 400 IM LCM | — | 0 |
IMR 13-14 · LCM
1586 points (5/5 events)
| Event | Time | Points |
|---|---|---|
| 200 FR LCM | 2:53.75 | 354 |
| 100 BK LCM | 1:35.41 | 285 |
| 100 BR LCM | 1:42.28 | 324 |
| 100 FL LCM | 1:36.02 | 247 |
| 200 IM LCM | 3:09.96 | 376 |
Scored against AAAA motivational base times: ordering is exact, absolute points run ~25% above the official USA Swimming scale.
PR splits
100 Freestyle SCY 1:13.77
Front half 35.18s · back half 38.59s
200 Freestyle SCY 2:58.10
Front half 84.14s · back half 93.96s
100 Backstroke SCY 1:24.12
Front half 41.78s · back half 42.34s
100 Breaststroke SCY 1:31.72
Front half 43.98s · back half 47.74s
200 Breaststroke SCY 3:29.13
Front half 101.76s · back half 107.37s
100 Individual Medley SCY 1:26.26
Front half 39.15s · back half 47.11s
200 Individual Medley SCY 2:50.45
Front half 80.45s · back half 90.00s
200 Freestyle LCM 2:53.75
Front half 84.15s · back half 89.60s
400 Freestyle LCM 6:10.11 · 240.0 min after 50 Freestyle
800 Freestyle LCM 12:50.14 · 240.0 min after 50 Backstroke
Front half 390.15s · back half 379.99s
100 Backstroke LCM 1:35.41
Front half 47.76s · back half 47.65s
200 Backstroke LCM 3:07.03
Front half 91.26s · back half 95.77s
200 Breaststroke LCM 3:48.71
Front half 111.12s · back half 117.59s
200 Individual Medley LCM 3:09.96
Front half 92.16s · back half 97.80s
Progression
Faster times are higher. One card per event, all courses & history.