swimJosephine Rivera
Personal records
| Event | Course | Best | Cut | Date | Meet |
|---|---|---|---|---|---|
| 50 Freestyle | SCY | 38.49 | B+2.40s to BB | 2026-03-22 | 2026 CA STOP BC Chmpionship SC venue |
| 100 Freestyle | SCY | 1:39.13 | +8.24s to B | 2025-09-21 | 2025 CA STOP Back To School Invite venue |
| 200 Freestyle | SCY | 3:25.29 | +2.50s to B | 2026-03-21 | 2026 CA STOP BC Chmpionship SC venue |
| 50 Backstroke | SCY | 51.00 | +2.41s to B | 2025-09-21 | 2025 CA STOP Back To School Invite venue |
| 100 Backstroke | SCY | 1:47.36 | +1.57s to B | 2026-04-26 | 2026 OC Committee's April Meet @ Patriot Aq. fast pool |
| 50 Breaststroke | SCY | 52.38 | B+3.69s to BB | 2026-05-17 | 2026 OC Committee's May Meet @ Patriot Aq. fast pool |
| 100 Breaststroke | SCY | 2:07.13 | +6.84s to B | 2025-12-07 | 2025 Patriot Aquatics December venue |
| 50 Butterfly | SCY | 43.95 | B+1.26s to BB | 2026-05-17 | 2026 OC Committee's May Meet @ Patriot Aq. fast pool |
| 100 Butterfly | SCY | 1:42.72 | B+1.33s to BB | 2026-05-16 | 2026 OC Committee's May Meet @ Patriot Aq. fast pool |
| 100 Individual Medley | SCY | 1:40.02 | B+6.23s to BB | 2026-02-21 | CA 2026 AAA February ABC SC Meet venue |
| 200 Individual Medley | SCY | 3:41.16 | B+21.57s to BB | 2026-04-25 | 2026 OC Committee's April Meet @ Patriot Aq. fast pool |
| 100 Freestyle | SCM | 1:38.99 | B+9.30s to BB | 2026-05-23 | 2026 CA STOP SCM Invitational venue |
| 50 Butterfly | SCM | 49.84 | B+2.65s to BB | 2026-05-23 | 2026 CA STOP SCM Invitational venue |
Cuts are USA Swimming single-age motivational standards (B → AAAA) at age 10.
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 | 31.18 | flat | 200 Free Relay | 2025-09-21 | 2025 CA STOP Back To School Invite |
| 50 Freestyle | SCY | 40.02 | flying | 200 Free Relay (leg 2) | 2026-06-20 | 2026 CA OC GOLD June 2026 ABC SC Age Group Me |
| 50 Backstroke | SCY | 1:08.20 | flat | 200 Medley Relay | 2026-01-24 | Orange Committee January 2026 ABC Meet-GWSC |
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 10 & under · SCY
1478 points (5/5 events)
| Event | Time | Points |
|---|---|---|
| 200 FR SCY | 3:25.29 | 291 |
| 100 BK SCY | 1:47.36 | 284 |
| 100 BR SCY | 2:07.13 | 250 |
| 100 FL SCY | 1:42.72 | 328 |
| 200 IM SCY | 3:41.16 | 325 |
IMR 10 & under · SCY
1568 points (5/5 events)
| Event | Time | Points |
|---|---|---|
| 100 FR SCY | 1:39.13 | 242 |
| 50 BK SCY | 51.00 | 260 |
| 50 BR SCY | 52.38 | 349 |
| 50 FL SCY | 43.95 | 360 |
| 100 IM SCY | 1:40.02 | 357 |
Scored against AAAA motivational base times: ordering is exact, absolute points run ~25% above the official USA Swimming scale.
PR splits
100 Freestyle SCY 1:39.13
Front half 46.10s · back half 53.03s
200 Freestyle SCY 3:25.29
Front half 98.10s · back half 107.19s
100 Backstroke SCY 1:47.36
Front half 51.56s · back half 55.80s
100 Breaststroke SCY 2:07.13
Front half 58.59s · back half 68.54s
100 Butterfly SCY 1:42.72
Front half 45.80s · back half 56.92s
200 Individual Medley SCY 3:41.16
Front half 101.48s · back half 119.68s
100 Freestyle SCM 1:38.99
Front half 44.94s · back half 54.05s
Progression
Faster times are higher. One card per event, all courses & history.