swimJack Boysen
Personal records
| Event | Course | Best | Cut | Date | Meet |
|---|---|---|---|---|---|
| 50 Freestyle | SCY | 21.38 | AAA+0.69s to AAAA | 2024-01-07 | KATY Westpark Tollway Classic slow pool |
| 100 Freestyle | SCY | 47.49 | AAA+2.00s to AAAA | 2024-09-22 | 2024 FCST Red v Blue Challenge venue |
| 200 Freestyle | SCY | 1:46.83 | AA+1.44s to AAA | 2024-10-20 | 2024 FCST Oct Tri Meet venue |
| 500 Freestyle | SCY | 4:45.82 | AAA+12.23s to AAAA | 2024-03-01 | 2024 Gulf 13 & Over Champs (SHRK) venue |
| 100 Backstroke | SCY | 55.36 | A+1.47s to AA | 2024-09-21 | 2024 FCST Red v Blue Challenge venue |
| 200 Backstroke | SCY | 2:05.68 | BB+1.89s to A | 2024-01-06 | KATY Westpark Tollway Classic slow pool |
| 100 Breaststroke | SCY | 1:05.16 | BB+0.97s to A | 2024-09-21 | 2024 FCST Red v Blue Challenge venue |
| 200 Breaststroke | SCY | 2:23.67 | BB+4.08s to A | 2024-10-20 | 2024 FCST Oct Tri Meet venue |
| 100 Butterfly | SCY | 53.23 | AA+1.64s to AAA | 2024-09-22 | 2024 FCST Red v Blue Challenge venue |
| 200 Butterfly | SCY | 2:11.09 | BB+4.60s to A | 2024-01-07 | KATY Westpark Tollway Classic slow pool |
| 200 Individual Medley | SCY | 2:01.19 | AA+5.00s to AAA | 2024-11-08 | 2024 FCST Nov Tri-Meet venue |
| 400 Individual Medley | SCY | 4:10.44 | AAA+11.05s to AAAA | 2025-02-28 | 2025 Gulf 13 & Over Champs (PEAK) fast pool |
| 50 Freestyle | LCM | 23.00 | AAAA | 2025-08-03 | 2025 Speedo Junior National Championships fast pool |
| 100 Freestyle | LCM | 51.87 | AAAA | 2024-07-24 | 2024 Futures Championships - Austin |
| 200 Freestyle | LCM | 1:57.66 | AAA+2.47s to AAAA | 2024-07-24 | 2024 Futures Championships - Austin venue |
| 400 Freestyle | LCM | 4:34.70 | A+5.71s to AA | 2024-04-21 | 2024 FCST April LC Invite venue |
| 1500 Freestyle | LCM | 18:03.98 | A+6.19s to AA | 2024-06-23 | 2024 FCST Summer Splash venue |
| 50 Backstroke | LCM | 27.79 | AAAA | 2025-07-30 | 2025 Speedo Junior National Championships fast pool |
| 100 Backstroke | LCM | 1:03.72 | AA+2.33s to AAA | 2024-01-07 | KATY Westpark Tollway Classic slow pool |
| 200 Backstroke | LCM | 2:22.03 | A+2.24s to AA | 2024-01-06 | KATY Westpark Tollway Classic slow pool |
| 100 Breaststroke | LCM | 1:17.72 | BB+3.03s to A | 2024-04-20 | 2024 FCST April LC Invite venue |
| 200 Breaststroke | LCM | 2:53.67 | BB+10.38s to A | 2024-04-21 | 2024 FCST April LC Invite venue |
| 50 Butterfly | LCM | 25.76 | AAAA | 2025-08-02 | 2025 Speedo Junior National Championships fast pool |
| 100 Butterfly | LCM | 1:00.82 | AA+1.93s to AAA | 2024-01-06 | KATY Westpark Tollway Classic slow pool |
| 200 Butterfly | LCM | 2:34.72 | BB+10.83s to A | 2024-04-21 | 2024 FCST April LC Invite venue |
| 200 Individual Medley | LCM | 2:22.82 | A+0.93s to AA | 2024-04-19 | 2024 FCST April LC Invite venue |
| 400 Individual Medley | LCM | 5:12.92 | A+8.13s to AA | 2024-04-20 | 2024 FCST April LC Invite venue |
Cuts are USA Swimming single-age motivational standards (B → AAAA) at age 18.
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 | 22.63 | flying | 200 Medley Relay (leg 4) | 2025-08-01 | 2025 Speedo Junior National Championships |
| 50 Freestyle | LCM | 22.97 | flying | 200 Free Relay (leg 4) | 2025-07-30 | 2025 Speedo Junior National Championships |
| 100 Freestyle | LCM | 51.68 | flat | 400 Free Relay | 2025-08-02 | 2025 Speedo Junior National Championships |
| 100 Freestyle | LCM | 52.69 | flying | 400 Medley Relay (leg 4) | 2025-08-03 | 2025 Speedo Junior National Championships |
| 200 Freestyle | LCM | 2:00.35 | flying | 800 Free Relay (leg 3) | 2024-07-25 | 2024 Futures Championships - Austin |
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 17-18 · SCY
4308 points (6/6 events)
| Event | Time | Points |
|---|---|---|
| 500 FR SCY | 4:45.82 | 865 |
| 200 BK SCY | 2:05.68 | 632 |
| 200 BR SCY | 2:23.67 | 607 |
| 200 FL SCY | 2:11.09 | 587 |
| 200 IM SCY | 2:01.19 | 759 |
| 400 IM SCY | 4:10.44 | 858 |
IMR 17-18 · LCM
3790 points (5/5 events)
| Event | Time | Points |
|---|---|---|
| 200 FR LCM | 1:57.66 | 926 |
| 100 BK LCM | 1:03.72 | 761 |
| 100 BR LCM | 1:17.72 | 587 |
| 100 FL LCM | 1:00.82 | 780 |
| 200 IM LCM | 2:22.82 | 736 |
Scored against AAAA motivational base times: ordering is exact, absolute points run ~25% above the official USA Swimming scale.
PR splits
100 Freestyle SCY 47.49
Front half 23.09s · back half 24.40s
200 Freestyle SCY 1:46.83
Front half 52.04s · back half 54.79s
500 Freestyle SCY 4:45.82
Front half 138.02s · back half 147.80s
100 Backstroke SCY 55.36
Front half 26.74s · back half 28.62s
200 Backstroke SCY 2:05.68
Front half 60.86s · back half 64.82s
100 Breaststroke SCY 1:05.16
Front half 30.64s · back half 34.52s
200 Breaststroke SCY 2:23.67
Front half 69.11s · back half 74.56s
100 Butterfly SCY 53.23
Front half 24.94s · back half 28.29s
200 Butterfly SCY 2:11.09
Front half 60.71s · back half 70.38s
200 Individual Medley SCY 2:01.19
Front half 56.14s · back half 65.05s
400 Individual Medley SCY 4:10.44
200 Freestyle LCM 1:57.66
Front half 55.89s · back half 61.77s
400 Freestyle LCM 4:34.70
Front half 135.89s · back half 138.81s
1500 Freestyle LCM 18:03.98
100 Backstroke LCM 1:03.72
Front half 31.25s · back half 32.47s
200 Backstroke LCM 2:22.03
Front half 68.91s · back half 73.12s
200 Breaststroke LCM 2:53.67
Front half 85.72s · back half 87.95s
100 Butterfly LCM 1:00.82
Front half 28.85s · back half 31.97s
200 Butterfly LCM 2:34.72
Front half 71.92s · back half 82.80s
200 Individual Medley LCM 2:22.82
Front half 65.56s · back half 77.26s
400 Individual Medley LCM 5:12.92
Front half 150.04s · back half 162.88s
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.