swimJohn Jacobson
Personal records
| Event | Course | Best | Cut | Date | Meet |
|---|---|---|---|---|---|
| 25 Freestyle | SCY | 29.81 | 2018-11-03 | 2018 MW NYA Jenna Krivohlavek Memorial Invite | |
| 50 Freestyle | SCY | 26.38 | A+0.79s to AA | 2026-01-01 | 1660388 |
| 100 Freestyle | SCY | 56.85 | A+1.36s to AA | 2026-01-01 | 1660388 |
| 200 Freestyle | SCY | 2:02.99 | A+1.60s to AA | 2026-01-01 | 1660388 |
| 500 Freestyle | SCY | 5:29.29 | A+1.80s to AA | 2026-01-01 | 1660388 |
| 50 Backstroke | SCY | 32.56 | BB+2.17s to A | 2025-11-08 | 2025 MW NYA Jenna Krivohlavek Memorial venue |
| 100 Breaststroke | SCY | 1:20.61 | B+2.32s to BB | 2025-01-11 | 2025 14&Under Midwest All Star Championships |
| 100 Butterfly | SCY | 1:06.99 | BB+3.80s to A | 2025-11-08 | 2025 MW NYA Jenna Krivohlavek Memorial venue |
| 100 Individual Medley | SCY | 1:05.21 | 2026-01-01 | 1660388 | |
| 200 Individual Medley | SCY | 2:18.17 | A+2.88s to AA | 2026-01-11 | 2026 Midwest All Stars venue |
| 50 Freestyle | LCM | 30.66 | BB+0.07s to A | 2026-06-27 | 2026 SD SFST Summer Surge Classic venue |
| 100 Freestyle | LCM | 1:07.05 | A+2.76s to AA | 2026-06-26 | 2026 SD SFST Summer Surge Classic venue |
| 200 Freestyle | LCM | 2:21.21 | A+1.52s to AA | 2026-06-28 | 2026 SD SFST Summer Surge Classic venue |
| 400 Freestyle | LCM | 5:06.04 | A+10.35s to AA | 2024-08-08 | Central Zone 14&U Championship |
| 50 Backstroke | LCM | 1:35.74 | +54.55s to B | 2018-06-30 | 2018 MW SLS First Splash |
| 100 Backstroke | LCM | 1:16.78 | BB+1.89s to A | 2026-06-28 | 2026 SD SFST Summer Surge Classic venue |
| 50 Breaststroke | LCM | 46.45 | +0.56s to B | 2023-08-04 | 2023 Central Zone 14 & U Championship - KS slow pool |
| 100 Breaststroke | LCM | 1:27.14 | BB+3.85s to A | 2026-06-27 | 2026 SD SFST Summer Surge Classic venue |
| 200 Breaststroke | LCM | 3:06.62 | BB+3.73s to A | 2026-06-26 | 2026 SD SFST Summer Surge Classic venue |
| 100 Butterfly | LCM | 1:13.04 | BB+0.95s to A | 2026-06-26 | 2026 SD SFST Summer Surge Classic |
| 200 Individual Medley | LCM | 2:39.62 | A+3.23s to AA | 2026-06-28 | 2026 SD SFST Summer Surge Classic 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 Breaststroke | SCY | 34.18 | flying | 200 Medley Relay (leg 2) | 2025-11-08 | 2025 MW NYA Jenna Krivohlavek Memorial |
| 50 Freestyle | LCM | 35.52 | flat | 200 Free Relay | 2023-08-04 | 2023 Central Zone 14 & U Championship - KS |
| 50 Breaststroke | LCM | 47.12 | flying | 200 Medley Relay (leg 2) | 2023-08-05 | 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 13-14 · LCM
1797 points (3/6 events — incomplete)
| Event | Time | Points |
|---|---|---|
| 400 FR LCM | 5:06.04 | 622 |
| 200 BR LCM | 3:06.62 | 541 |
| 200 IM LCM | 2:39.62 | 634 |
| 200 BK LCM | — | 0 |
| 200 FL LCM | — | 0 |
| 400 IM LCM | — | 0 |
IMR 13-14 · LCM
2926 points (5/5 events)
| Event | Time | Points |
|---|---|---|
| 200 FR LCM | 2:21.21 | 660 |
| 100 BK LCM | 1:16.78 | 546 |
| 100 BR LCM | 1:27.14 | 524 |
| 100 FL LCM | 1:13.04 | 562 |
| 200 IM LCM | 2:39.62 | 634 |
Scored against AAAA motivational base times: ordering is exact, absolute points run ~25% above the official USA Swimming scale.
PR splits
100 Breaststroke SCY 1:20.61 split/total mismatch
Front half 38.08s · back half 42.53s
100 Butterfly SCY 1:06.99
Front half 31.08s · back half 35.91s
200 Individual Medley SCY 2:18.17
Front half 65.35s · back half 72.82s
100 Freestyle LCM 1:07.05
Front half 31.73s · back half 35.32s
200 Freestyle LCM 2:21.21
Front half 67.27s · back half 73.94s
400 Freestyle LCM 5:06.04 split/total mismatch
100 Backstroke LCM 1:16.78
Front half 37.11s · back half 39.67s
100 Breaststroke LCM 1:27.14
Front half 40.81s · back half 46.33s
200 Breaststroke LCM 3:06.62
Front half 89.53s · back half 97.09s
200 Individual Medley LCM 2:39.62
Front half 74.72s · back half 84.90s
Progression
Faster times are higher. One card per event, all courses & history.