swimJameson Von Rosenberg
Personal records
| Event | Course | Best | Cut | Date | Meet |
|---|---|---|---|---|---|
| 50 Freestyle | SCY | 22.01 | AAA+0.32s to AAAA | 2026-03-05 | LAC Spring Speedo Sectionals |
| 100 Freestyle | SCY | 49.31 | AAA+1.82s to AAAA | 2026-02-28 | 2026 ST AAAA SC Senior Champs venue |
| 200 Freestyle | SCY | 1:49.46 | AA+0.77s to AAA | 2026-02-27 | 2026 ST AAAA SC Senior Champs venue |
| 500 Freestyle | SCY | 6:09.65 | B+20.16s to BB | 2025-01-18 | 2025 ST AQTX B Champs North venue |
| 100 Backstroke | SCY | 1:04.29 | BB+4.70s to A | 2025-09-21 | 2025 ST AQTX Round Rock Unclassified venue |
| 200 Backstroke | SCY | 2:42.72 | +10.93s to B | 2024-09-21 | 2024 ST AQTX Round Rock Unclassified venue |
| 100 Breaststroke | SCY | 1:18.07 | B+5.08s to BB | 2025-10-18 | 2025 ST TXLA 11&Over Fall Kick Off Invite venue |
| 50 Butterfly | SCY | 25.45 | AA+0.06s to AAA | 2025-12-12 | 2025 ST AAAA NS Winter Wonderland fast pool |
| 100 Butterfly | SCY | 53.96 | AAA+2.47s to AAAA | 2026-03-01 | 2026 ST AAAA SC Senior Champs venue |
| 200 Individual Medley | SCY | 2:15.12 | BB+2.93s to A | 2025-12-12 | 2025 ST AAAA NS Winter Wonderland fast pool |
| 400 Individual Medley | SCY | 5:50.88 | +19.29s to B | 2024-12-15 | 2024 ST AAAA NS Winter Wonderland venue |
| 50 Freestyle | LCM | 24.75 | AAAA | 2026-06-14 | 2026 ST NIST George Block Invitational fast pool |
| 100 Freestyle | LCM | 55.52 | AAA+1.03s to AAAA | 2026-06-11 | 2026 ST NIST George Block Invitational fast pool |
| 200 Freestyle | LCM | 2:09.10 | AA+3.31s to AAA | 2026-06-13 | 2026 ST NIST George Block Invitational fast pool |
| 400 Freestyle | LCM | 4:40.39 | A+0.50s to AA | 2026-06-14 | 2026 ST NIST George Block Invitational fast pool |
| 100 Backstroke | LCM | 1:09.14 | A+2.45s to AA | 2026-06-13 | 2026 ST NIST George Block Invitational fast pool |
| 50 Butterfly | LCM | 27.31 | AAAA | 2026-06-11 | 2026 ST NIST George Block Invitational |
| 100 Butterfly | LCM | 1:02.78 | AA+1.09s to AAA | 2026-06-12 | 2026 ST NIST George Block Invitational fast pool |
| 200 Individual Medley | LCM | 2:52.68 | B+6.69s to BB | 2025-04-27 | 2025 ST NTRO Splashing into Long Course 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.
IMX / IMR
IMX 15-16 · SCY
1644 points (4/6 events — incomplete)
| Event | Time | Points |
|---|---|---|
| 500 FR SCY | 6:09.65 | 417 |
| 200 BK SCY | 2:42.72 | 314 |
| 200 IM SCY | 2:15.12 | 587 |
| 400 IM SCY | 5:50.88 | 326 |
| 200 BR SCY | — | 0 |
| 200 FL SCY | — | 0 |
IMR 15-16 · SCY
3102 points (5/5 events)
| Event | Time | Points |
|---|---|---|
| 200 FR SCY | 1:49.46 | 808 |
| 100 BK SCY | 1:04.29 | 490 |
| 100 BR SCY | 1:18.07 | 403 |
| 100 FL SCY | 53.96 | 814 |
| 200 IM SCY | 2:15.12 | 587 |
Scored against AAAA motivational base times: ordering is exact, absolute points run ~25% above the official USA Swimming scale.
PR splits
100 Freestyle SCY 49.31
Front half 23.25s · back half 26.06s
500 Freestyle SCY 6:09.65
Front half 182.15s · back half 187.50s
100 Backstroke SCY 1:04.29
Front half 31.69s · back half 32.60s
200 Backstroke SCY 2:42.72
Front half 81.13s · back half 81.59s
100 Breaststroke SCY 1:18.07
Front half 36.02s · back half 42.05s
100 Butterfly SCY 53.96
Front half 25.33s · back half 28.63s
200 Individual Medley SCY 2:15.12
Front half 62.72s · back half 72.40s
400 Individual Medley SCY 5:50.88
Front half 172.89s · back half 177.99s
100 Freestyle LCM 55.52
Front half 27.07s · back half 28.45s
200 Freestyle LCM 2:09.10
Front half 61.51s · back half 67.59s
400 Freestyle LCM 4:40.39
Front half 138.65s · back half 141.74s
100 Backstroke LCM 1:09.14
Front half 34.45s · back half 34.69s
100 Butterfly LCM 1:02.78
Front half 29.14s · back half 33.64s
200 Individual Medley LCM 2:52.68
Front half 80.72s · back half 91.96s
Progression
Faster times are higher. One card per event, all courses & history.