swimJack Chamberlin
Personal records
| Event | Course | Best | Cut | Date | Meet |
|---|---|---|---|---|---|
| 50 Freestyle | SCY | 27.57 | B+0.78s to BB | 2025-11-02 | 2025 MN TUNA Turkey Trot venue |
| 100 Freestyle | SCY | 1:16.94 | +13.65s to B | 2022-02-19 | 2022 RRV Mile Meet venue |
| 500 Freestyle | SCY | 5:52.78 | B+3.29s to BB | 2025-11-01 | 2025 MN TUNA Turkey Trot venue |
| 50 Backstroke | SCY | 43.53 | +10.84s to B | 2022-02-20 | 2022 RRV Mile Meet venue |
| 100 Backstroke | SCY | 1:12.14 | +2.65s to B | 2025-10-05 | 2025 MN AQJT 4th Annual Shootout Invite - cop |
| 50 Breaststroke | SCY | 42.60 | +5.11s to B | 2022-02-20 | 2022 RRV Mile Meet venue |
| 100 Breaststroke | SCY | 1:14.66 | B+1.67s to BB | 2025-11-02 | 2025 MN TUNA Turkey Trot venue |
| 200 Breaststroke | SCY | 2:45.05 | B+5.86s to BB | 2025-11-02 | 2025 MN TUNA Turkey Trot venue |
| 50 Butterfly | SCY | 41.52 | +9.13s to B | 2022-02-19 | 2022 RRV Mile Meet venue |
| 400 Individual Medley | SCY | 5:09.85 | B+1.96s to BB | 2025-11-01 | 2025 MN TUNA Turkey Trot venue |
| 50 Freestyle | LCM | 39.23 | +5.94s to B | 2021-07-23 | 2021 ND LC Championship venue |
| 100 Freestyle | LCM | 1:27.06 | +14.37s to B | 2021-07-25 | 2021 ND LC Championship venue |
| 200 Freestyle | LCM | 2:23.57 | BB+6.38s to A | 2026-05-09 | WFF 2026 Spring Sprint venue |
| 400 Freestyle | LCM | 4:59.66 | BB+7.57s to A | 2026-06-14 | 2026 Island Park Invite venue |
| 800 Freestyle | LCM | 12:14.99 | +30.40s to B | 2023-08-04 | 2023 Central Zone 14 & U Championship - KS slow pool |
| 50 Backstroke | LCM | 36.02 | B+0.13s to BB | 2026-05-16 | 2026 Red Dragon Invite |
| 100 Backstroke | LCM | 1:17.77 | B+2.38s to BB | 2026-05-16 | 2026 Red Dragon Invite |
| 50 Breaststroke | LCM | 39.07 | BB+2.58s to A | 2026-06-14 | 2026 Island Park Invite venue |
| 100 Breaststroke | LCM | 1:24.84 | BB+6.45s to A | 2026-06-12 | 2026 Island Park Invite venue |
| 200 Breaststroke | LCM | 3:17.18 | B+11.49s to BB | 2023-08-05 | 2023 Central Zone 14 & U Championship - KS slow pool |
| 50 Butterfly | LCM | 33.57 | BB+2.28s to A | 2026-05-09 | WFF 2026 Spring Sprint venue |
| 100 Butterfly | LCM | 1:13.22 | B+0.33s to BB | 2026-06-14 | 2026 Island Park Invite venue |
| 200 Butterfly | LCM | 2:49.01 | B+5.92s to BB | 2026-06-13 | 2026 Island Park Invite venue |
| 200 Individual Medley | LCM | 2:43.16 | BB+9.97s to A | 2026-06-12 | 2026 Island Park Invite venue |
Cuts are USA Swimming single-age motivational standards (B → AAAA) at age 15.
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 | LCM | 32.93 | flying | 200 Free Relay (leg 2) | 2023-08-04 | 2023 Central Zone 14 & U Championship - KS |
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 · LCM
1961 points (4/6 events — incomplete)
| Event | Time | Points |
|---|---|---|
| 400 FR LCM | 4:59.66 | 584 |
| 200 BR LCM | 3:17.18 | 405 |
| 200 FL LCM | 2:49.01 | 442 |
| 200 IM LCM | 2:43.16 | 530 |
| 200 BK LCM | — | 0 |
| 400 IM LCM | — | 0 |
IMR 15-16 · LCM
2505 points (5/5 events)
| Event | Time | Points |
|---|---|---|
| 200 FR LCM | 2:23.57 | 548 |
| 100 BK LCM | 1:17.77 | 447 |
| 100 BR LCM | 1:24.84 | 494 |
| 100 FL LCM | 1:13.22 | 486 |
| 200 IM LCM | 2:43.16 | 530 |
Scored against AAAA motivational base times: ordering is exact, absolute points run ~25% above the official USA Swimming scale.
PR splits
100 Freestyle SCY 1:16.94
Front half 37.27s · back half 39.67s
500 Freestyle SCY 5:52.78
Front half 175.43s · back half 177.35s
100 Backstroke SCY 1:12.14 split/total mismatch
100 Breaststroke SCY 1:14.66
Front half 35.60s · back half 39.06s
200 Breaststroke SCY 2:45.05
Front half 80.22s · back half 84.83s
400 Individual Medley SCY 5:09.85
Front half 155.73s · back half 154.12s
100 Freestyle LCM 1:27.06
Front half 43.33s · back half 43.73s
200 Freestyle LCM 2:23.57
Front half 70.19s · back half 73.38s
400 Freestyle LCM 4:59.66
Front half 147.03s · back half 152.63s
800 Freestyle LCM 12:14.99
Front half 371.11s · back half 363.88s
100 Breaststroke LCM 1:24.84
Front half 40.90s · back half 43.94s
200 Breaststroke LCM 3:17.18
Front half 96.87s · back half 100.31s
100 Butterfly LCM 1:13.22
Front half 34.34s · back half 38.88s
200 Butterfly LCM 2:49.01
Front half 80.17s · back half 88.84s
200 Individual Medley LCM 2:43.16
Front half 79.15s · back half 84.01s
Progression
Faster times are higher. One card per event, all courses & history.