swimMabel Koff
Personal records
| Event | Course | Best | Cut | Date | Meet |
|---|---|---|---|---|---|
| 50 Freestyle | SCY | 23.94 | Sectionals ✓+0.95s to Futures | 2024-02-24 | 2024 MD LSC Senior Champsvenue |
| 100 Freestyle | SCY | 51.25 | Sectionals ✓+1.26s to Futures | 2023-12-17 | 2023 NBAC Christmas Invitationalvenue |
| 200 Freestyle | SCY | 1:48.80 | Sectionals ✓+0.61s to Futures | 2024-02-23 | 2024 MD LSC Senior Champsvenue |
| 500 Freestyle | SCY | 4:57.27 | Sectionals ✓+7.28s to Futures | 2023-12-16 | 2023 NBAC Christmas Invitationalvenue |
| 50 Backstroke | SCY | 25.78 | +0.59s to Futures | 2024-02-23 | 2024 MD LSC Senior Champsvenue |
| 100 Backstroke | SCY | 54.04 | Futures ✓+1.05s to US Open | 2024-02-24 | 2024 MD LSC Senior Champsvenue |
| 200 Backstroke | SCY | 1:55.76 | Futures ✓+0.37s to US Open | 2024-02-25 | 2024 MD LSC Senior Champsvenue |
| 50 Breaststroke | SCY | 30.71 | +1.92s to Futures | 2023-01-21 | 2023 ISCA National Club Championshipsvenue |
| 100 Breaststroke | SCY | 1:04.69 | Sectionals ✓+2.30s to Futures | 2023-12-15 | 2023 NBAC Christmas Invitationalvenue |
| 200 Breaststroke | SCY | 2:22.58 | Sectionals ✓+7.19s to Futures | 2023-01-22 | 2023 ISCA National Club Championshipsvenue |
| 50 Butterfly | SCY | 26.50 | +1.81s to Futures | 2023-12-14 | 2023 NBAC Christmas Invitationalvenue |
| 100 Butterfly | SCY | 56.19 | Sectionals ✓+2.10s to Futures | 2023-02-24 | 2023 MD LSC SR SCY Championhipsvenue |
| 200 Butterfly | SCY | 2:02.50 | Sectionals ✓+2.01s to Futures | 2022-02-26 | 2022 MD LSC Senior Championshipsvenue |
| 100 Individual Medley | SCY | 1:07.70 | 2016-11-19 | 2016 NBAC Fall Warmup Meeslow pool | |
| 200 Individual Medley | SCY | 2:00.15 | Futures ✓+1.76s to US Open | 2024-02-25 | 2024 MD LSC Senior Champsvenue |
| 400 Individual Medley | SCY | 4:27.20 | Sectionals ✓+8.41s to Futures | 2021-12-17 | 2021 NBAC 47th Annual Christmas Invitationalvenue |
| 50 Freestyle | LCM | 27.79 | Sectionals ✓+1.20s to Futures | 2023-07-08 | 2023 NBAC Mid-Summer Classicvenue |
| 100 Freestyle | LCM | 59.04 | Sectionals ✓+1.35s to Futures | 2023-07-09 | 2023 NBAC Mid-Summer Classicvenue |
| 200 Freestyle | LCM | 2:04.13 | Futures ✓+1.04s to US Open | 2024-03-22 | 2024 Speedo Sectional Championshipvenue |
| 400 Freestyle | LCM | 4:28.03 | Sectionals ✓+4.44s to Futures | 2026-05-08 | WRAT Senior Spring Qualifiervenue |
| 50 Backstroke | LCM | 30.04 | +0.25s to Futures | 2023-07-07 | 2023 NBAC Mid-Summer Classicvenue |
| 100 Backstroke | LCM | 1:02.46 | US Open ✓+0.27s to Nationals | 2024-03-23 | 2024 Speedo Sectional Championshipvenue |
| 200 Backstroke | LCM | 2:14.56 | Nationals ✓ | 2024-03-24 | 2024 Speedo Sectional Championshipvenue |
| 50 Breaststroke | LCM | 34.84 | +1.15s to Futures | 2024-05-17 | 2024 NBAC Spring LC Invitational Meetvenue |
| 100 Breaststroke | LCM | 1:15.75 | Sectionals ✓+2.46s to Futures | 2024-05-18 | 2024 NBAC Spring LC Invitational Meetvenue |
| 200 Breaststroke | LCM | 2:44.47 | Sectionals ✓+5.88s to Futures | 2023-07-09 | 2023 NBAC Mid-Summer Classicvenue |
| 50 Butterfly | LCM | 29.33 | +0.94s to Futures | 2024-05-17 | 2024 NBAC Spring LC Invitational Meetvenue |
| 100 Butterfly | LCM | 1:04.26 | Sectionals ✓+1.77s to Futures | 2024-05-18 | 2024 NBAC Spring LC Invitational Meetvenue |
| 200 Butterfly | LCM | 2:23.53 | Sectionals ✓+5.14s to Futures | 2023-07-08 | 2023 NBAC Mid-Summer Classicvenue |
| 200 Individual Medley | LCM | 2:21.49 | Sectionals ✓+0.20s to Futures | 2021-07-10 | 2021 FOX July Long Course Invitationalvenue |
| 400 Individual Medley | LCM | 5:04.94 | Sectionals ✓+4.65s to Futures | 2021-07-09 | 2021 FOX July Long Course Invitationalvenue |
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 | 25.27 | flat | 200 Free Relay | 2021-10-30 | 2021 NBAC Fall Fastival Meet |
| 50 Freestyle | SCY | 23.29 | flying | 200 Free Relay (leg 4) | 2024-02-24 | 2024 MD LSC Senior Champs |
| 100 Freestyle | SCY | 50.86 | flat | 400 Free Relay | 2024-02-25 | 2024 MD LSC Senior Champs |
| 100 Freestyle | SCY | 51.06 | flying | 400 Free Relay (leg 2) | 2022-12-16 | 2022 NBAC Christmas Invitational Meet |
| 200 Freestyle | SCY | 1:49.27 | flat | 800 Free Relay | 2023-02-23 | 2023 MD LSC SR SCY Championhips |
| 200 Freestyle | SCY | 1:49.86 | flying | 800 Free Relay (leg 4) | 2024-02-22 | 2024 MD LSC Senior Champs |
| 50 Backstroke | SCY | 25.68 | flat | 200 Medley Relay | 2024-02-22 | 2024 MD LSC Senior Champs |
| 100 Backstroke | SCY | 54.01 | flat | 400 Medley Relay | 2024-02-23 | 2024 MD LSC Senior Champs |
| 50 Breaststroke | SCY | 30.86 | flying | 200 Medley Relay (leg 2) | 2023-10-22 | 2023 NBAC Fall Fastival Meet |
| 50 Butterfly | SCY | 28.25 | flying | 200 Medley Relay (leg 3) | 2017-03-05 | 2017 MD LSC 14 & U CHAMPIONSHIPS |
| 100 Butterfly | SCY | 1:01.54 | flying | 400 Medley Relay (leg 3) | 2017-03-03 | 2017 MD LSC 14 & U CHAMPIONSHIPS |
| 100 Freestyle | LCM | 57.92 | flat | 400 Free Relay | 2024-03-23 | 2024 Speedo Sectional Championship |
| 200 Freestyle | LCM | 2:04.09 | flying | 800 Free Relay (leg 4) | 2023-07-06 | 2023 NBAC Mid-Summer Classic |
| 50 Backstroke | LCM | 29.99 | flat | 200 Medley Relay | 2023-07-07 | 2023 NBAC Mid-Summer Classic |
| 100 Backstroke | LCM | 1:03.97 | flat | 400 Medley Relay | 2023-07-08 | 2023 NBAC Mid-Summer Classic |
| 100 Breaststroke | LCM | 1:28.64 | flying | 400 Medley Relay (leg 2) | 2016-06-12 | 2016 NBAC Long Course 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.
PR splits
100 Freestyle SCY 51.25
Front half 25.05s · back half 26.20s
200 Freestyle SCY 1:48.80
Front half 52.79s · back half 56.01s
500 Freestyle SCY 4:57.27
Front half 144.53s · back half 152.74s
100 Backstroke SCY 54.04
Front half 26.30s · back half 27.74s
200 Backstroke SCY 1:55.76
Front half 56.14s · back half 59.62s
100 Breaststroke SCY 1:04.69
Front half 30.67s · back half 34.02s
200 Breaststroke SCY 2:22.58
Front half 68.46s · back half 74.12s
100 Butterfly SCY 56.19
Front half 26.46s · back half 29.73s
200 Butterfly SCY 2:02.50
Front half 57.63s · back half 64.87s
100 Individual Medley SCY 1:07.70
Front half 31.35s · back half 36.35s
200 Individual Medley SCY 2:00.15
Front half 56.47s · back half 63.68s
400 Individual Medley SCY 4:27.20
Front half 126.78s · back half 140.42s
100 Freestyle LCM 59.04
Front half 28.78s · back half 30.26s
200 Freestyle LCM 2:04.13
Front half 60.11s · back half 64.02s
100 Backstroke LCM 1:02.46
Front half 30.87s · back half 31.59s
200 Backstroke LCM 2:14.56
Front half 64.97s · back half 69.59s
100 Breaststroke LCM 1:15.75
Front half 35.45s · back half 40.30s
200 Breaststroke LCM 2:44.47
Front half 78.21s · back half 86.26s
100 Butterfly LCM 1:04.26
Front half 30.11s · back half 34.15s
200 Butterfly LCM 2:23.53
Front half 67.36s · back half 76.17s
200 Individual Medley LCM 2:21.49
Front half 65.82s · back half 75.67s
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.