Ronaldo Serna
Personal records
| Event | Course | Best | Cut | Date | Meet |
|---|---|---|---|---|---|
| 50 Freestyle | SCY | 24.47 | BB+0.08s to A | 2026-05-09 | 2026 SCSL Spring Meet #3 venue |
| 100 Freestyle | SCY | 55.11 | BB+1.62s to A | 2026-02-14 | 2026 Metro Champs @ La Mirada Armada venue |
| 200 Freestyle | SCY | 1:59.60 | BB+2.81s to A | 2026-05-09 | 2026 SCSL Spring Meet #3 venue |
| 50 Backstroke | SCY | 31.46 | B+1.87s to BB | 2025-11-08 | 2025 CA Downey Dolphins SC Swim Meet venue |
| 100 Backstroke | SCY | 1:03.59 | B+0.70s to BB | 2026-05-09 | 2026 SCSL Spring Meet #3 venue |
| 200 Backstroke | SCY | 2:35.74 | +7.25s to B | 2024-11-23 | 2024 CA SCSL Fall Meet #4 venue |
| 100 Breaststroke | SCY | 1:21.00 | +4.01s to B | 2025-06-22 | SCSL Summer Championship Meet 2025 venue |
| 50 Butterfly | SCY | 31.14 | B+1.65s to BB | 2025-01-26 | SCSL Winter Championship Meet 2025 venue |
| 100 Butterfly | SCY | 1:04.28 | B+1.79s to BB | 2026-02-15 | 2026 Metro Champs @ La Mirada Armada venue |
| 200 Individual Medley | SCY | 2:23.94 | B+3.45s to BB | 2026-01-11 | 2026 CA Commerce Aquatics SC Swim Meet - venue |
| 50 Freestyle | LCM | 28.39 | BB+0.10s to A | 2026-05-02 | 26 ESA Dolphins Swim Team venue |
| 100 Freestyle | LCM | 1:02.12 | BB+0.53s to A | 2026-06-07 | 026 SEA Dolphins Swim Team venue |
| 200 Freestyle | LCM | 2:17.72 | BB+2.93s to A | 2026-06-06 | 026 SEA Dolphins Swim Team venue |
| 100 Backstroke | LCM | 1:14.19 | B+0.40s to BB | 2026-05-23 | LVSC Memorial Day Invite 2026 venue |
| 200 Backstroke | LCM | 2:50.04 | B+10.05s to BB | 2026-05-24 | LVSC Memorial Day Invite 2026 venue |
| 50 Breaststroke | LCM | 40.61 | B+1.72s to BB | 2026-04-12 | Armada Lc April Meet -April 11-12-2026 venue |
| 100 Breaststroke | LCM | 1:30.15 | +0.26s to B | 2026-04-11 | Armada Lc April Meet -April 11-12-2026 venue |
| 100 Butterfly | LCM | 1:11.29 | BB+5.30s to A | 2026-05-02 | 26 ESA Dolphins Swim Team venue |
| 200 Individual Medley | LCM | 2:43.90 | B+0.01s to BB | 2026-05-03 | 26 ESA Dolphins Swim Team venue |
Cuts are USA Swimming single-age motivational standards (B → AAAA) at age 16.
Fastest relay legs
| Leg | Course | Time | Start | Relay | Date | Meet |
|---|---|---|---|---|---|---|
| 50 Butterfly | SCY | 26.72 | flying | 200 Medley Relay (leg 3) | 2025-06-21 | SCSL Summer Championship Meet 2025 |
| 50 Freestyle | LCM | 28.12 | flying | 200 Free Relay (leg 4) | 2025-06-12 | 2025 CA SCS RAA June Age Group Championships |
| 50 Breaststroke | LCM | 35.56 | flying | 200 Medley Relay (leg 2) | 2026-06-14 | ARMADA-2026 SCS June AG Invite |
| 50 Butterfly | LCM | 30.20 | flying | 200 Medley Relay (leg 3) | 2025-06-15 | 2025 CA SCS RAA June Age Group 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 15-16 · LCM
961 points (2/6 events — incomplete)
| Event | Time | Points |
|---|---|---|
| 200 BK LCM | 2:50.04 | 438 |
| 200 IM LCM | 2:43.90 | 523 |
| 400 FR LCM | — | 0 |
| 200 BR LCM | — | 0 |
| 200 FL LCM | — | 0 |
| 400 IM LCM | — | 0 |
IMR 15-16 · LCM
2597 points (5/5 events)
| Event | Time | Points |
|---|---|---|
| 200 FR LCM | 2:17.72 | 620 |
| 100 BK LCM | 1:14.19 | 515 |
| 100 BR LCM | 1:30.15 | 412 |
| 100 FL LCM | 1:11.29 | 527 |
| 200 IM LCM | 2:43.90 | 523 |
Scored against AAAA motivational base times: ordering is exact, absolute points run ~25% above the official USA Swimming scale.
PR splits
100 Freestyle SCY 55.11
Front half 26.54s · back half 28.57s
200 Freestyle SCY 1:59.60
Front half 56.16s · back half 63.44s
100 Backstroke SCY 1:03.59
Front half 31.44s · back half 32.15s
100 Breaststroke SCY 1:21.00
Front half 38.57s · back half 42.43s
100 Butterfly SCY 1:04.28
Front half 28.87s · back half 35.41s
200 Individual Medley SCY 2:23.94
Front half 69.69s · back half 74.25s
100 Backstroke LCM 1:14.19
Front half 36.15s · back half 38.04s
200 Backstroke LCM 2:50.04
Front half 81.04s · back half 89.00s
100 Breaststroke LCM 1:30.15
Front half 43.16s · back half 46.99s
200 Individual Medley LCM 2:43.90
Front half 77.98s · back half 85.92s
Progression
Faster times are higher. One card per event, all courses & history.