Cosmo McGrath
Personal records
| Event | Course | Best | Cut | Date | Meet |
|---|---|---|---|---|---|
| 25 Freestyle | SCY | 23.11 | 2025-01-19 | 2025 BBST Aly Fell Memorial Sprint Classicvenue | |
| 50 Freestyle | SCY | 39.05 | +0.76s to B·+15.86s to Sectionals | 2026-03-07 | 2026 BBST Seize the Day Invitationalvenue |
| 100 Freestyle | SCY | 1:38.23 | +9.74s to B·+47.24s to Sectionals | 2026-05-10 | 2026 PN BBST Take a Chance Invite- Approvedvenue |
| 25 Backstroke | SCY | 23.94 | 2025-01-18 | 2025 BBST Aly Fell Memorial Sprint Classicvenue | |
| 50 Backstroke | SCY | 47.46 | B+4.37s to BB·+23.77s to Futures | 2026-01-25 | 2026 PN BBST Aly Fell Memorial - Approvedvenue |
| 100 Backstroke | SCY | 1:37.58 | B+7.09s to BB·+42.09s to Sectionals | 2026-03-07 | 2026 BBST Seize the Day Invitationalvenue |
| 25 Breaststroke | SCY | 32.67 | 2024-11-02 | 2024 Speedo BBST November Invitationalvenue | |
| 50 Breaststroke | SCY | 53.09 | B+5.30s to BB·+26.80s to Futures | 2026-01-25 | 2026 PN BBST Aly Fell Memorial - Approvedvenue |
| 100 Breaststroke | SCY | 1:57.09 | +1.60s to B·+53.90s to Sectionals | 2026-05-09 | 2026 PN BBST Take a Chance Invite- Approvedvenue |
| 25 Butterfly | SCY | 32.08 | 2025-01-19 | 2025 BBST Aly Fell Memorial Sprint Classicvenue | |
| 50 Butterfly | SCY | 48.01 | +1.52s to B·+25.12s to Futures | 2026-01-01 | Sanction #: 2603-SP04 |
| 100 Individual Medley | SCY | 1:40.52 | +0.73s to B | 2026-03-08 | 2026 BBST Seize the Day Invitationalvenue |
| 50 Freestyle | LCM | 45.07 | +1.18s to B·+18.08s to Sectionals | 2026-06-21 | 2026 IE VS Starlight Open (USAS)slow pool |
| 100 Freestyle | LCM | 1:47.07 | +5.98s to B·+48.08s to Sectionals | 2026-06-19 | 2026 IE VS Starlight Open (USAS)slow pool |
| 200 Freestyle | LCM | 3:57.73 | +20.64s to B·+109.04s to Sectionals | 2026-06-20 | 2026 IE VS Starlight Open (USAS)slow pool |
| 50 Backstroke | LCM | 49.58 | B+0.29s to BB·+21.69s to Futures | 2026-04-26 | 2026 PN SMAC Spring Showers LC Challengevenue |
| 100 Backstroke | LCM | 1:53.37 | B+8.88s to BB·+48.18s to Sectionals | 2026-06-21 | 2026 IE VS Starlight Open (USAS)slow pool |
| 50 Breaststroke | LCM | 55.03 | B+0.64s to BB·+24.14s to Futures | 2026-06-21 | 2026 IE VS Starlight Open (USAS)slow pool |
| 100 Breaststroke | LCM | 2:12.62 | B+13.23s to BB·+58.92s to Sectionals | 2026-06-20 | 2026 IE VS Starlight Open (USAS)slow pool |
| 50 Butterfly | LCM | 56.20 | +3.91s to B·+29.91s to Futures | 2026-04-26 | 2026 PN SMAC Spring Showers LC Challengevenue |
Cuts are USA Swimming single-age motivational standards (B → AAAA) at age 10.
National cuts (Sectionals → Nationals) are the current-season meet qualifying times for the swimmer's zone and age group; ✓ marks the hardest cut already achieved.
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 | 51.22 | flying | 200 Free Relay (leg 4) | 2025-10-05 | 2025 PN BBST Fall Kickoff |
| 50 Freestyle | SCY | 40.59 | flying | 200 Medley Relay (leg 4) | 2026-07-11 | 2026 BBST Final Summer Splash Invite-Approved |
| 50 Backstroke | SCY | 16.18 | flat | 200 Medley Relay | 2024-10-05 | 2024 BBST PN Fall Kick-Off Invitational |
| 50 Breaststroke | LCM | 51.52 | flying | 200 Medley Relay (leg 2) | 2026-07-25 | 2026 PN LC 12&U Championships-Approved |
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 · LCM
940 points (3/5 events — incomplete)
| Event | Time | Points |
|---|---|---|
| 200 FR LCM | 3:57.73 | 259 |
| 100 BK LCM | 1:53.37 | 351 |
| 100 BR LCM | 2:12.62 | 330 |
| 100 FL LCM | — | 0 |
| 200 IM LCM | — | 0 |
IMR 10 & under · SCY
1466 points (5/5 events)
| Event | Time | Points |
|---|---|---|
| 100 FR SCY | 1:38.23 | 235 |
| 50 BK SCY | 47.46 | 312 |
| 50 BR SCY | 53.09 | 322 |
| 50 FL SCY | 48.01 | 263 |
| 100 IM SCY | 1:40.52 | 334 |
Scored against AAAA motivational base times: ordering is exact, absolute points run ~25% above the official USA Swimming scale.
PR splits
100 Freestyle SCY 1:38.23
Front half 44.42s · back half 53.81s
100 Backstroke SCY 1:37.58
Front half 46.91s · back half 50.67s
100 Breaststroke SCY 1:57.09
Front half 53.68s · back half 63.41s
100 Individual Medley SCY 1:40.52
Front half 44.66s · back half 55.86s
Reaction time
From electronically-timed starts only (~2% of corpus swims carry a reaction time). PRs with a recorded reaction show an RT chip in the splits section above.
Swim history
Every recorded swim, newest first
| Date | Event | Course | Time | Age | Round | Meet |
|---|
Individual swims with a recorded date and time — including disqualifications — plus reconstructed relay legs (marked). Assembled in the browser from this page’s data.
Progression
Faster times are higher. One card per event, all courses & history.