Mariana Rivera
Personal records
| Event | Course | Best | Cut | Date | Meet |
|---|---|---|---|---|---|
| 50 Freestyle | SCY | 29.84 | AA+0.15s to AAA | 2026-03-19 | 2026 IN Swimming Age Group Short Course Champ |
| 100 Freestyle | SCY | 1:06.11 | AA+1.02s to AAA | 2026-03-19 | 2026 IN Swimming Age Group Short Course Champ |
| 200 Freestyle | SCY | 2:25.90 | AA+2.31s to AAA | 2026-03-22 | 2026 IN Swimming Age Group Short Course Champ fast pool |
| 50 Backstroke | SCY | 36.78 | A+0.59s to AA | 2026-03-07 | 2026 Spring CE ISI Divisional Championships - venue |
| 100 Backstroke | SCY | 1:23.19 | BB+0.90s to A | 2026-03-08 | 2026 Spring CE ISI Divisional Championships - venue |
| 50 Breaststroke | SCY | 42.10 | A+1.21s to AA | 2026-03-07 | 2026 Spring CE ISI Divisional Championships - venue |
| 100 Breaststroke | SCY | 1:33.61 | BB+0.02s to A | 2026-03-08 | 2026 Spring CE ISI Divisional Championships - venue |
| 50 Butterfly | SCY | 34.60 | AA+1.41s to AAA | 2026-03-19 | 2026 IN Swimming Age Group Short Course Champ |
| 100 Butterfly | SCY | 1:23.78 | A+2.79s to AA | 2026-03-07 | 2026 Spring CE ISI Divisional Championships - venue |
| 200 Individual Medley | SCY | 2:51.19 | A+2.80s to AA | 2026-03-06 | 2026 Spring CE ISI Divisional Championships - 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 | 29.60 | flying | 200 Free Relay (leg 4) | 2026-03-22 | 2026 IN Swimming Age Group Short Course Champ |
| 50 Breaststroke | SCY | 43.31 | flying | 200 Medley Relay (leg 2) | 2026-03-21 | 2026 IN Swimming Age Group Short Course Champ |
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
3358 points (5/5 events)
| Event | Time | Points |
|---|---|---|
| 200 FR SCY | 2:25.90 | 813 |
| 100 BK SCY | 1:23.19 | 610 |
| 100 BR SCY | 1:33.61 | 628 |
| 100 FL SCY | 1:23.78 | 605 |
| 200 IM SCY | 2:51.19 | 702 |
IMR 10 & under · SCY
2922 points (4/5 events — incomplete)
| Event | Time | Points |
|---|---|---|
| 100 FR SCY | 1:06.11 | 816 |
| 50 BK SCY | 36.78 | 695 |
| 50 BR SCY | 42.10 | 672 |
| 50 FL SCY | 34.60 | 739 |
| 100 IM SCY | — | 0 |
Scored against AAAA motivational base times: ordering is exact, absolute points run ~25% above the official USA Swimming scale.
PR splits
200 Freestyle SCY 2:25.90
Front half 69.91s · back half 75.99s
100 Backstroke SCY 1:23.19
Front half 40.27s · back half 42.92s
100 Breaststroke SCY 1:33.61
Front half 43.86s · back half 49.75s
100 Butterfly SCY 1:23.78
Front half 37.87s · back half 45.91s
200 Individual Medley SCY 2:51.19
Front half 80.09s · back half 91.10s
Progression
Faster times are higher. One card per event, all courses & history.