swimBrianna Keros
Personal records
| Event | Course | Best | Cut | Date | Meet |
|---|---|---|---|---|---|
| 50 Freestyle | SCY | 27.97 | A+0.58s to AA | 2025-12-13 | 2025 DRD Winter Solstice Meet |
| 100 Freestyle | SCY | 1:02.39 | BB+0.30s to A | 2026-03-08 | 2026 Michigan YMCA State Championship fast pool |
| 200 Freestyle | SCY | 2:17.34 | BB+2.15s to A | 2026-03-07 | 2026 Michigan YMCA State Championship fast pool |
| 50 Backstroke | SCY | 38.63 | +1.44s to B | 2025-10-11 | 2025 HVP IMX Challenge Open Invitational venue |
| 50 Breaststroke | SCY | 44.76 | +1.57s to B | 2025-11-09 | Atlantis 2025 Fall Quack-Tack-Ular venue |
| 100 Breaststroke | SCY | 1:47.95 | +16.96s to B | 2025-11-08 | Atlantis 2025 Fall Quack-Tack-Ular venue |
| 50 Butterfly | SCY | 31.14 | A+0.95s to AA | 2026-03-08 | 2026 Michigan YMCA State Championship fast pool |
| 100 Butterfly | SCY | 1:08.05 | BB+0.46s to A | 2026-03-08 | 2026 Michigan YMCA State Championship fast pool |
| 100 Individual Medley | SCY | 1:20.26 | 2025-12-07 | 2025 FFYS Holiday Invitational venue | |
| 200 Individual Medley | SCY | 2:24.33 | AA+5.54s to AAA | 2026-02-21 | 2026 Michigan YMCA Clusters Championship |
| 50 Freestyle | LCM | 33.11 | BB+0.52s to A | 2026-06-14 | 2026 OLY Summer Classic venue |
| 100 Freestyle | LCM | 1:02.33 | AAA+0.24s to AAAA | 2026-06-12 | 2026 OLY Summer Classic |
| 200 Freestyle | LCM | 2:24.87 | AA+3.08s to AAA | 2026-05-29 | 2026 PCC Cruisin into Summer |
| 100 Backstroke | LCM | 1:43.20 | +10.61s to B | 2026-06-20 | DRD Freeze or Fry 2026 venue |
| 100 Breaststroke | LCM | 1:48.73 | +4.04s to B | 2026-06-21 | DRD Freeze or Fry 2026 venue |
| 50 Butterfly | LCM | 36.57 | BB+1.28s to A | 2026-05-31 | 2026 PCC Cruisin into Summer venue |
| 100 Butterfly | LCM | 1:24.80 | B+1.31s to BB | 2026-06-14 | 2026 OLY Summer Classic venue |
| 200 Individual Medley | LCM | 3:11.27 | B+3.38s to BB | 2026-06-19 | DRD Freeze or Fry 2026 venue |
Cuts are USA Swimming single-age motivational standards (B → AAAA) at age 13.
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 | 27.37 | flying | 200 Free Relay (leg 2) | 2026-03-07 | 2026 Michigan YMCA State Championship |
| 50 Freestyle | SCY | 27.76 | flying | 200 Medley Relay (leg 4) | 2026-03-08 | 2026 Michigan YMCA State Championship |
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 13-14 · SCY
710 points (1/6 events — incomplete)
| Event | Time | Points |
|---|---|---|
| 200 IM SCY | 2:24.33 | 710 |
| 500 FR SCY | — | 0 |
| 200 BK SCY | — | 0 |
| 200 BR SCY | — | 0 |
| 200 FL SCY | — | 0 |
| 400 IM SCY | — | 0 |
IMR 13-14 · LCM
2296 points (5/5 events)
| Event | Time | Points |
|---|---|---|
| 200 FR LCM | 2:24.87 | 747 |
| 100 BK LCM | 1:43.20 | 277 |
| 100 BR LCM | 1:48.73 | 352 |
| 100 FL LCM | 1:24.80 | 458 |
| 200 IM LCM | 3:11.27 | 462 |
Scored against AAAA motivational base times: ordering is exact, absolute points run ~25% above the official USA Swimming scale.
PR splits
100 Freestyle SCY 1:02.39
Front half 30.47s · back half 31.92s
200 Freestyle SCY 2:17.34
Front half 66.84s · back half 70.50s
100 Breaststroke SCY 1:47.95
Front half 51.84s · back half 56.11s
100 Butterfly SCY 1:08.05
Front half 31.36s · back half 36.69s
100 Individual Medley SCY 1:20.26
Front half 37.01s · back half 43.25s
100 Butterfly LCM 1:24.80
Front half 39.62s · back half 45.18s
200 Individual Medley LCM 3:11.27
Front half 93.35s · back half 97.92s
Progression
Faster times are higher. One card per event, all courses & history.