swimJayson Rosario
Personal records
| Event | Course | Best | Cut | Date | Meet |
|---|---|---|---|---|---|
| 50 Freestyle | SCY | 29.48 | A+0.69s to AA | 2026-02-21 | 2026 FG SCY BB Championships SOUTH fast pool |
| 100 Freestyle | SCY | 1:05.80 | BB+0.61s to A | 2026-02-15 | NMST-BMHG February BC Invite 26 venue |
| 200 Freestyle | SCY | 2:27.77 | BB+4.98s to A | 2025-04-26 | NMST - BMHG April Invite 25 venue |
| 50 Backstroke | SCY | 31.96 | AA+0.17s to AAA | 2026-03-08 | 2026 FG Age Group SCY Championships fast pool |
| 100 Backstroke | SCY | 1:09.36 | AA+0.77s to AAA | 2026-03-07 | 2026 FG Age Group SCY Championships fast pool |
| 200 Backstroke | SCY | 2:41.79 | BB+1.00s to A | 2025-11-21 | 2025 SoFlo Last Chance and Holiday Classic venue |
| 50 Breaststroke | SCY | 40.14 | BB+0.65s to A | 2026-02-14 | NMST-BMHG February BC Invite 26 venue |
| 100 Breaststroke | SCY | 1:26.03 | BB+1.04s to A | 2026-02-15 | NMST-BMHG February BC Invite 26 venue |
| 50 Butterfly | SCY | 33.04 | A+0.95s to AA | 2026-02-22 | 2026 FG SCY BB Championships SOUTH fast pool |
| 100 Butterfly | SCY | 1:20.17 | BB+4.58s to A | 2026-02-14 | NMST-BMHG February BC Invite 26 venue |
| 100 Individual Medley | SCY | 1:13.15 | A+1.06s to AA | 2026-02-21 | 2026 FG SCY BB Championships SOUTH fast pool |
| 200 Individual Medley | SCY | 2:42.29 | A+5.80s to AA | 2026-02-22 | 2026 FG SCY BB Championships SOUTH fast pool |
| 50 Freestyle | SCM | 35.87 | BB+2.68s to A | 2025-06-21 | NMST-BMHG June Summer Invite SCM 25 venue |
| 100 Freestyle | SCM | 1:19.95 | B+1.96s to BB | 2025-06-21 | NMST-BMHG June Summer Invite SCM 25 venue |
| 200 Freestyle | SCM | 2:54.60 | B+3.61s to BB | 2025-06-21 | NMST-BMHG June Summer Invite SCM 25 venue |
| 50 Backstroke | SCM | 37.25 | A+0.36s to AA | 2025-06-21 | NMST-BMHG June Summer Invite SCM 25 venue |
| 50 Breaststroke | SCM | 47.78 | BB+4.09s to A | 2025-06-21 | NMST-BMHG June Summer Invite SCM 25 venue |
| 50 Butterfly | SCM | 41.14 | B+0.35s to BB | 2025-06-21 | NMST-BMHG June Summer Invite SCM 25 venue |
| 100 Butterfly | SCM | 1:36.94 | B+5.25s to BB | 2025-06-21 | NMST-BMHG June Summer Invite SCM 25 venue |
| 200 Individual Medley | SCM | 3:16.17 | BB+15.28s to A | 2025-06-21 | NMST-BMHG June Summer Invite SCM 25 venue |
| 50 Freestyle | LCM | 32.91 | A+0.12s to AA | 2026-06-28 | 2026 Michael Lohberg Invitational venue |
| 100 Freestyle | LCM | 1:13.28 | A+1.19s to AA | 2026-04-19 | SCS Under the Sun Invitational venue |
| 200 Freestyle | LCM | 2:44.85 | BB+2.16s to A | 2026-04-18 | SCS Under the Sun Invitational venue |
| 400 Freestyle | LCM | 6:16.54 | B+3.45s to BB | 2025-05-16 | Jesse Vasallo Swimming Invitational 2025 venue |
| 50 Backstroke | LCM | 35.65 | AAA+0.76s to AAAA | 2026-06-27 | 2026 Michael Lohberg Invitational venue |
| 100 Backstroke | LCM | 1:18.66 | AAA+2.77s to AAAA | 2026-06-28 | 2026 Michael Lohberg Invitational venue |
| 50 Breaststroke | LCM | 43.49 | A+0.60s to AA | 2026-06-26 | 2026 Michael Lohberg Invitational venue |
| 100 Breaststroke | LCM | 1:35.12 | A+0.33s to AA | 2026-05-23 | 2026 Doral Swim Club LCM Spring Invite fast pool |
| 50 Butterfly | LCM | 37.63 | A+1.44s to AA | 2026-05-22 | 2026 Doral Swim Club LCM Spring Invite fast pool |
| 100 Butterfly | LCM | 1:25.30 | A+3.11s to AA | 2026-06-27 | 2026 Michael Lohberg Invitational venue |
| 200 Individual Medley | LCM | 2:58.12 | AA+7.23s to AAA | 2026-05-23 | 2026 Doral Swim Club LCM Spring Invite fast pool |
Cuts are USA Swimming single-age motivational standards (B → AAAA) at age 11.
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 | 28.30 | flying | 200 Free Relay (leg 3) | 2026-03-08 | 2026 FG Age Group SCY Championships |
| 50 Freestyle | SCY | 28.28 | flying | 200 Medley Relay (leg 4) | 2026-03-08 | 2026 FG Age Group SCY Championships |
| 100 Freestyle | SCY | 1:01.83 | flying | 400 Medley Relay (leg 4) | 2026-03-06 | 2026 FG Age Group SCY Championships |
| 50 Backstroke | SCY | 36.15 | flat | 200 Medley Relay | 2025-03-08 | 2025 FG Age Group SCY Championships |
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 11-12 · LCM
2830 points (5/5 events)
| Event | Time | Points |
|---|---|---|
| 400 FR LCM | 6:16.54 | 437 |
| 100 BK LCM | 1:18.66 | 716 |
| 100 BR LCM | 1:35.12 | 572 |
| 100 FL LCM | 1:25.30 | 501 |
| 200 IM LCM | 2:58.12 | 604 |
IMR 11-12 · LCM
3000 points (5/5 events)
| Event | Time | Points |
|---|---|---|
| 200 FR LCM | 2:44.85 | 541 |
| 50 BK LCM | 35.65 | 763 |
| 50 BR LCM | 43.49 | 571 |
| 50 FL LCM | 37.63 | 521 |
| 200 IM LCM | 2:58.12 | 604 |
Scored against AAAA motivational base times: ordering is exact, absolute points run ~25% above the official USA Swimming scale.
PR splits
100 Freestyle SCY 1:05.80
Front half 32.27s · back half 33.53s
100 Backstroke SCY 1:09.36
Front half 34.54s · back half 34.82s
200 Backstroke SCY 2:41.79
Front half 79.38s · back half 82.41s
100 Breaststroke SCY 1:26.03
Front half 41.51s · back half 44.52s
100 Butterfly SCY 1:20.17
Front half 37.62s · back half 42.55s
100 Individual Medley SCY 1:13.15
Front half 33.79s · back half 39.36s
200 Individual Medley SCY 2:42.29
Front half 78.36s · back half 83.93s
200 Freestyle SCM 2:54.60
Front half 85.84s · back half 88.76s
100 Butterfly SCM 1:36.94
Front half 44.90s · back half 52.04s
200 Individual Medley SCM 3:16.17
Front half 92.20s · back half 103.97s
200 Freestyle LCM 2:44.85
Front half 82.33s · back half 82.52s
400 Freestyle LCM 6:16.54
Front half 187.84s · back half 188.70s
100 Backstroke LCM 1:18.66
Front half 39.37s · back half 39.29s
200 Individual Medley LCM 2:58.12
Front half 86.15s · back half 91.97s
Progression
Faster times are higher. One card per event, all courses & history.