swimMarco Costello
Personal records
| Event | Course | Best | Cut | Date | Meet |
|---|---|---|---|---|---|
| 50 Freestyle | SCY | 31.95 | BB+1.86s to A·+9.56s to Sectionals | 2026-02-28 | AD 12 and Under Gold Championshipsvenue |
| 100 Freestyle | SCY | 1:10.81 | B+0.22s to BB·+22.32s to Sectionals | 2026-03-01 | AD 12 and Under Gold Championshipsvenue |
| 200 Freestyle | SCY | 2:46.77 | +0.18s to B·+60.48s to Sectionals | 2026-01-17 | Canajoharie Developmental Meetslow pool |
| 50 Backstroke | SCY | 38.72 | B+0.63s to BB·+15.03s to Futures | 2026-03-01 | AD 12 and Under Gold Championshipsvenue |
| 100 Backstroke | SCY | 1:36.28 | +6.49s to B·+41.79s to Sectionals | 2025-11-01 | Fin-Tastic Fall Meet |
| 50 Breaststroke | SCY | 59.65 | +12.76s to B·+33.36s to Futures | 2025-01-26 | Stingray Splash 2025venue |
| 50 Butterfly | SCY | 39.02 | B+2.13s to BB·+16.13s to Futures | 2026-02-28 | AD 12 and Under Gold Championshipsvenue |
| 100 Individual Medley | SCY | 1:21.92 | B+0.23s to BB | 2026-03-01 | AD 12 and Under Gold Championshipsvenue |
Cuts are USA Swimming single-age motivational standards (B → AAAA) at age 11.
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 | 32.56 | flying | 200 Free Relay (leg 2) | 2026-03-01 | AD 12 and Under Gold Championships |
| 100 Freestyle | SCY | 1:13.90 | flying | 400 Free Relay (leg 3) | 2026-02-27 | AD 12 and Under Gold Championships |
| 50 Butterfly | SCY | 31.05 | flying | 200 Medley Relay (leg 3) | 2026-02-28 | AD 12 and Under Gold 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 11-12 · SCY
235 points (1/5 events — incomplete)
| Event | Time | Points |
|---|---|---|
| 100 BK SCY | 1:36.28 | 235 |
| 500 FR SCY | — | 0 |
| 100 BR SCY | — | 0 |
| 100 FL SCY | — | 0 |
| 200 IM SCY | — | 0 |
IMR 11-12 · SCY
1611 points (5/5 events)
| Event | Time | Points |
|---|---|---|
| 200 FR SCY | 2:46.77 | 345 |
| 50 BK SCY | 38.72 | 385 |
| 50 BR SCY | 59.65 | 147 |
| 50 FL SCY | 39.02 | 320 |
| 100 IM SCY | 1:21.92 | 414 |
Scored against AAAA motivational base times: ordering is exact, absolute points run ~25% above the official USA Swimming scale.
PR splits
100 Freestyle SCY 1:10.81
Front half 33.41s · back half 37.40s
200 Freestyle SCY 2:46.77
Front half 80.06s · back half 86.71s
100 Individual Medley SCY 1:21.92
Front half 40.21s · back half 41.71s
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.