swimMaggie Costello
Personal records
| Event | Course | Best | Cut | Date | Meet |
|---|---|---|---|---|---|
| 50 Freestyle | SCY | 29.00 | BB+1.81s to A·+3.71s to Sectionals | 2025-01-10 | 2025 BAC January Classic Invite |
| 100 Freestyle | SCY | 58.81 | A+2.22s to AA·+4.32s to Sectionals | 2026-01-01 | Ozaukee Aquatics |
| 200 Freestyle | SCY | 2:05.46 | A+3.17s to AA·+7.57s to Sectionals | 2025-11-21 | 2024 Speedo Grand Chalenge |
| 500 Freestyle | SCY | 5:21.06 | AA+5.47s to AAA·+6.07s to Sectionals | 2026-01-01 | Ozaukee Aquatics |
| 1000 Freestyle | SCY | 11:04.44 | AA+11.55s to AAA·+16.05s to Sectionals | 2025-11-21 | 2024 Speedo Grand Chalenge |
| 1650 Freestyle | SCY | 18:16.39 | AAA+49.50s to AAAA·Sectionals ✓+62.00s to Futures | 2025-11-21 | 2024 Speedo Grand Chalenge |
| 3000 Freestyle | SCY | 53:53.01 | 2024-06-27 | 2023 WI Central Zone Open Water Championshipsslow pool | |
| 100 Backstroke | SCY | 1:10.53 | B+1.34s to BB·+10.04s to Sectionals | 2025-05-09 | 2025 Ozaukee Aquatics Spring Sprintvenue |
| 200 Backstroke | SCY | 2:23.16 | BB+4.67s to A·+11.67s to Sectionals | 2025-10-17 | 2025 Ozaukee Aquatics Fall Classic |
| 100 Breaststroke | SCY | 1:13.67 | BB+0.28s to A·+4.18s to Sectionals | 2026-05-08 | 2026 OZ Spring Sprint |
| 200 Breaststroke | SCY | 2:37.21 | A+3.72s to AA·+6.22s to Sectionals | 2026-03-13 | 2026 Speedo Sectionals (North) - West Fargovenue |
| 50 Butterfly | SCY | 29.01 | A+0.42s to AA·+2.32s to Sectionals | 2026-05-08 | 2026 OZ Spring Sprint |
| 100 Butterfly | SCY | 1:07.19 | BB+3.70s to A·+7.60s to Sectionals | 2025-10-17 | 2025 Ozaukee Aquatics Fall Classic |
| 200 Butterfly | SCY | 2:20.87 | A+5.28s to AA·+7.78s to Sectionals | 2025-10-17 | 2025 Ozaukee Aquatics Fall Classic |
| 100 Individual Medley | SCY | 1:06.86 | 2025-11-21 | 2024 Speedo Grand Chalenge | |
| 200 Individual Medley | SCY | 2:23.58 | BB+1.19s to A·+10.59s to Sectionals | 2025-11-21 | 2024 Speedo Grand Chalenge |
| 400 Individual Medley | SCY | 4:47.99 | AA+9.80s to AAA·+4.00s to Sectionals | 2026-03-14 | 2026 Speedo Sectionals (North) - West Fargovenue |
| 50 Freestyle | LCM | 33.64 | B+0.05s to BB·+4.85s to Sectionals | 2024-06-01 | 9th Annual Pirate Plungevenue |
| 100 Freestyle | LCM | 1:12.21 | BB+5.12s to A·+10.42s to Sectionals | 2024-06-09 | Shorewood 2024 Long Course Summer Openvenue |
| 200 Freestyle | LCM | 2:29.14 | BB+3.95s to A·+16.05s to Sectionals | 2025-07-18 | 2025 WI LSC Summer Regionals - EBSC |
| 400 Freestyle | LCM | 5:26.10 | BB+19.41s to A·+43.71s to Sectionals | 2024-05-31 | 9th Annual Pirate Plungevenue |
| 800 Freestyle | LCM | 9:58.44 | AA+15.95s to AAA·+17.05s to Sectionals | 2025-07-31 | Wisconsin Swimming 13 & O LC State Meet 2025 |
| 100 Backstroke | LCM | 1:25.28 | B+4.39s to BB·+14.79s to Sectionals | 2024-06-02 | 9th Annual Pirate Plungevenue |
| 200 Backstroke | LCM | 2:57.86 | B+2.67s to BB·+26.47s to Sectionals | 2024-06-01 | 9th Annual Pirate Plungevenue |
| 100 Breaststroke | LCM | 1:39.36 | +1.07s to B·+19.37s to Sectionals | 2024-06-02 | 9th Annual Pirate Plungevenue |
| 200 Individual Medley | LCM | 2:59.53 | B+2.34s to BB·+28.24s to Sectionals | 2024-06-09 | Shorewood 2024 Long Course Summer Openvenue |
| 400 Individual Medley | LCM | 6:22.93 | B+7.04s to BB·+58.54s to Sectionals | 2024-05-31 | 9th Annual Pirate Plungevenue |
Cuts are USA Swimming single-age motivational standards (B → AAAA) at age 17.
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 | 26.81 | flying | 200 Free Relay (leg 3) | 2026-03-13 | 2026 Speedo Sectionals (North) - West Fargo |
| 100 Freestyle | SCY | 58.00 | flat | 400 Free Relay | 2026-03-14 | 2026 Speedo Sectionals (North) - West Fargo |
| 50 Butterfly | SCY | 33.20 | flying | 200 Medley Relay (leg 3) | 2024-12-07 | 2024 WI Dale Schrank Memorial Meet |
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 17-18 · SCY
4087 points (6/6 events)
| Event | Time | Points |
|---|---|---|
| 500 FR SCY | 5:21.06 | 794 |
| 200 BK SCY | 2:23.16 | 575 |
| 200 BR SCY | 2:37.21 | 683 |
| 200 FL SCY | 2:20.87 | 651 |
| 200 IM SCY | 2:23.58 | 623 |
| 400 IM SCY | 4:47.99 | 761 |
IMR 17-18 · SCY
2974 points (5/5 events)
| Event | Time | Points |
|---|---|---|
| 200 FR SCY | 2:05.46 | 681 |
| 100 BK SCY | 1:10.53 | 473 |
| 100 BR SCY | 1:13.67 | 643 |
| 100 FL SCY | 1:07.19 | 554 |
| 200 IM SCY | 2:23.58 | 623 |
Scored against AAAA motivational base times: ordering is exact, absolute points run ~25% above the official USA Swimming scale.
PR splits
100 Freestyle SCY 58.81 split/total mismatch
Front half 28.56s · back half 30.25s
500 Freestyle SCY 5:21.06 split/total mismatch
100 Backstroke SCY 1:10.53
Front half 34.90s · back half 35.63s
200 Breaststroke SCY 2:37.21
Front half 75.66s · back half 81.55s
400 Individual Medley SCY 4:47.99
Front half 139.71s · back half 148.28s
100 Freestyle LCM 1:12.21
Front half 35.00s · back half 37.21s
400 Freestyle LCM 5:26.10
Front half 160.19s · back half 165.91s
800 Freestyle LCM 9:58.44 split/total mismatch
100 Backstroke LCM 1:25.28
Front half 41.82s · back half 43.46s
200 Backstroke LCM 2:57.86
Front half 87.83s · back half 90.03s
100 Breaststroke LCM 1:39.36
Front half 47.46s · back half 51.90s
200 Individual Medley LCM 2:59.53
Front half 87.77s · back half 91.76s
400 Individual Medley LCM 6:22.93
Front half 188.56s · back half 194.37s
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.