James Jacobsen
Personal records
| Event | Course | Best | Cut | Date | Meet |
|---|---|---|---|---|---|
| 50 Freestyle | SCY | 22.93 | AAA+0.54s to AAAA | 2026-03-07 | 2026 MW Midwestern Senior Short Course Champs fast pool |
| 100 Freestyle | SCY | 48.55 | AAAA | 2026-01-01 | 1660388 |
| 200 Freestyle | SCY | 1:46.75 | AAAA | 2026-03-06 | 2026 MW Midwestern Senior Short Course Champs fast pool |
| 500 Freestyle | SCY | 4:48.78 | AAAA | 2026-01-01 | 1660388 |
| 50 Backstroke | SCY | 25.34 | AAA+0.05s to AAAA | 2026-02-20 | 2026 MW Midwestern Age Group Short Course |
| 100 Backstroke | SCY | 54.44 | AAA+0.95s to AAAA | 2026-03-07 | 2026 MW Midwestern Senior Short Course Champs fast pool |
| 200 Backstroke | SCY | 1:59.84 | AAA+3.45s to AAAA | 2026-01-01 | 1660388 |
| 100 Breaststroke | SCY | 1:06.70 | A+0.51s to AA | 2025-12-14 | 2025 MW CBSC NTS Holiday Classic venue |
| 200 Breaststroke | SCY | 2:28.45 | A+4.46s to AA | 2025-12-13 | 2025 MW CBSC NTS Holiday Classic |
| 100 Butterfly | SCY | 59.18 | A+1.29s to AA | 2025-10-04 | 2025 MW ACE River Races |
| 100 Individual Medley | SCY | 55.46 | 2026-02-20 | 2026 MW Midwestern Age Group Short Course | |
| 200 Individual Medley | SCY | 1:59.10 | AAA+0.61s to AAAA | 2026-03-08 | 2026 MW Midwestern Senior Short Course Champs fast pool |
| 400 Individual Medley | SCY | 4:36.00 | AA+10.61s to AAA | 2025-11-01 | 2025 MW SCSC November Classic |
| 50 Freestyle | LCM | 25.71 | AAA+0.02s to AAAA | 2026-06-26 | 2026 MW LSS Capital City Classic |
| 100 Freestyle | LCM | 55.51 | AAAA | 2026-06-26 | 2026 MW LSS Capital City Classic |
| 200 Freestyle | LCM | 2:03.88 | AAA+0.89s to AAAA | 2026-05-01 | 2026 MW Swim Omaha Spring Classic |
| 400 Freestyle | LCM | 4:28.95 | AAA+6.46s to AAAA | 2026-06-26 | 2026 MW LSS Capital City Classic venue |
| 800 Freestyle | LCM | 10:37.28 | BB+15.89s to A | 2023-08-04 | 2023 Central Zone 14 & U Championship - KS slow pool |
| 1500 Freestyle | LCM | 17:55.58 | AAA+32.09s to AAAA | 2024-08-08 | Central Zone 14&U Championship |
| 50 Backstroke | LCM | 30.27 | AAA+0.58s to AAAA | 2024-08-08 | Central Zone 14&U Championship |
| 100 Backstroke | LCM | 1:05.23 | AAA+2.44s to AAAA | 2026-06-26 | 2026 MW LSS Capital City Classic |
| 200 Backstroke | LCM | 2:21.76 | AAA+5.27s to AAAA | 2026-06-26 | 2026 MW LSS Capital City Classic |
| 50 Breaststroke | LCM | 38.73 | BB+0.94s to A | 2024-07-26 | 2024 MW Midwestern LC Championship |
| 100 Breaststroke | LCM | 1:19.29 | A+2.10s to AA | 2026-04-25 | 2026 MW GOAL Sprint Cup venue |
| 50 Butterfly | LCM | 31.38 | A+0.79s to AA | 2024-05-11 | 2024 IA DSMY May LCM Invitational slow pool |
| 200 Individual Medley | LCM | 2:24.74 | AA+0.95s to AAA | 2026-06-26 | 2026 MW LSS Capital City Classic venue |
| 400 Individual Medley | LCM | 5:09.95 | AA+2.46s to AAA | 2026-05-01 | 2026 MW Swim Omaha Spring Classic |
Cuts are USA Swimming single-age motivational standards (B → AAAA) at age 14.
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 | 22.25 | flying | 200 Medley Relay (leg 4) | 2026-03-13 | 2026 MV Region VIII Speedo Spring Sectionals |
| 100 Freestyle | SCY | 49.08 | flying | 400 Free Relay (leg 3) | 2026-03-14 | Region VIII Speedo Spring Sectionals |
| 100 Freestyle | SCY | 49.86 | flying | 400 Medley Relay (leg 4) | 2026-03-15 | Region VIII Speedo Spring Sectionals |
| 50 Freestyle | LCM | 27.34 | flying | 200 Free Relay (leg 4) | 2024-08-02 | 2024 Central Zone 14 & U Championship - ND |
| 100 Freestyle | LCM | 1:10.47 | flat | 400 Free Relay | 2023-08-06 | 2023 Central Zone 14 & U Championship - KS |
| 100 Freestyle | LCM | 1:01.95 | flying | 400 Free Relay (leg 4) | 2024-08-04 | 2024 Central Zone 14 & U Championship - ND |
| 50 Backstroke | LCM | 33.12 | flat | 200 Medley Relay | 2024-08-03 | 2024 Central Zone 14 & U Championship - ND |
| 100 Backstroke | LCM | 1:12.86 | flat | 400 Medley Relay | 2024-08-03 | 2024 Central Zone 14 & U Championship - ND |
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 · SCY
4357 points (5/6 events — incomplete)
| Event | Time | Points |
|---|---|---|
| 500 FR SCY | 4:48.78 | 1005 |
| 200 BK SCY | 1:59.84 | 906 |
| 200 BR SCY | 2:28.45 | 690 |
| 200 IM SCY | 1:59.10 | 984 |
| 400 IM SCY | 4:36.00 | 772 |
| 200 FL SCY | — | 0 |
IMR 13-14 · SCY
4390 points (5/5 events)
| Event | Time | Points |
|---|---|---|
| 200 FR SCY | 1:46.75 | 1003 |
| 100 BK SCY | 54.44 | 948 |
| 100 BR SCY | 1:06.70 | 742 |
| 100 FL SCY | 59.18 | 713 |
| 200 IM SCY | 1:59.10 | 984 |
Scored against AAAA motivational base times: ordering is exact, absolute points run ~25% above the official USA Swimming scale.
PR splits
200 Freestyle SCY 1:46.75
Front half 52.47s · back half 54.28s
100 Backstroke SCY 54.44
Front half 26.60s · back half 27.84s
100 Breaststroke SCY 1:06.70
Front half 31.66s · back half 35.04s
200 Individual Medley SCY 1:59.10
Front half 56.23s · back half 62.87s
400 Freestyle LCM 4:28.95
Front half 134.12s · back half 134.83s
800 Freestyle LCM 10:37.28
Front half 322.43s · back half 314.85s
1500 Freestyle LCM 17:55.58 split/total mismatch
100 Breaststroke LCM 1:19.29
Front half 37.86s · back half 41.43s
200 Individual Medley LCM 2:24.74
Front half 70.20s · back half 74.54s
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.