Catherine van Lierop
Personal records
| Event | Course | Best | Cut | Date | Meet |
|---|---|---|---|---|---|
| 25 Freestyle | SCY | 19.41 | 2016-12-10 | Holiday Meet slow pool | |
| 50 Freestyle | SCY | 24.57 | AAA+0.58s to AAAA | 2025-02-22 | 2025 Speedo MD LSC Senior Champs venue |
| 100 Freestyle | SCY | 53.29 | AAA+1.30s to AAAA | 2025-02-03 | John DeBarbadillo Invite |
| 200 Freestyle | SCY | 1:55.78 | AAA+3.69s to AAAA | 2026-02-20 | 2026 Speedo MD LSC Senior Champs venue |
| 500 Freestyle | SCY | 5:25.08 | AA+8.69s to AAA | 2023-11-17 | 2023 NBAC Thanksgiving Meet venue |
| 1000 Freestyle | SCY | 11:14.58 | AA+15.99s to AAA | 2025 NBAC Fall Fastival Meet fast pool | |
| 1650 Freestyle | SCY | 18:34.16 | AA+11.57s to AAA | 2025-10-18 | 2025 NBAC Fall Fastival Meet fast pool |
| 25 Backstroke | SCY | 22.21 | 2016-12-10 | Holiday Meet slow pool | |
| 50 Backstroke | SCY | 26.86 | AAA+0.37s to AAAA | 2025-02-21 | 2025 Speedo MD LSC Senior Champs venue |
| 100 Backstroke | SCY | 59.08 | AA+0.19s to AAA | 2025-02-03 | John DeBarbadillo Invite |
| 200 Backstroke | SCY | 2:11.32 | AA+3.63s to AAA | 2025-12-14 | 2025 NBAC 51st Annual Christmas Invitational venue |
| 50 Breaststroke | SCY | 32.63 | AA+0.14s to AAA | 2023-03-05 | 2023 MD LSC 14 & U Championships venue |
| 100 Breaststroke | SCY | 1:10.23 | AA+2.24s to AAA | 2023-12-15 | 2023 NBAC Christmas Invitational venue |
| 200 Breaststroke | SCY | 2:34.81 | A+0.82s to AA | 2022-12-17 | 2022 NBAC Christmas Invitational Meet venue |
| 50 Butterfly | SCY | 26.21 | AAAA | 2025-02-23 | 2025 Speedo MD LSC Senior Champs venue |
| 100 Butterfly | SCY | 58.44 | AAA+2.35s to AAAA | 2025-02-21 | 2025 Speedo MD LSC Senior Champs venue |
| 200 Butterfly | SCY | 2:21.96 | A+5.27s to AA | 2023-11-19 | 2023 NBAC Thanksgiving Meet venue |
| 100 Individual Medley | SCY | 59.96 | 2026-02-19 | 2026 Speedo MD LSC Senior Champs venue | |
| 200 Individual Medley | SCY | 2:10.17 | AAA+4.68s to AAAA | 2024-12-14 | 2024 NBAC 50th Annual Christmas Invitational venue |
| 400 Individual Medley | SCY | 4:52.43 | AA+10.94s to AAA | 2022-12-16 | 2022 NBAC Christmas Invitational Meet venue |
| 50 Freestyle | LCM | 28.03 | AAA+0.74s to AAAA | 2025-08-02 | 2025 MD LSC LC Championships venue |
| 100 Freestyle | LCM | 1:00.76 | AAA+1.87s to AAAA | 2025-07-13 | 2025 NBAC Mid Summer Classic venue |
| 200 Freestyle | LCM | 2:10.89 | AAA+3.80s to AAAA | 2025-07-31 | 2025 MD LSC LC Championships venue |
| 400 Freestyle | LCM | 5:00.67 | A+5.78s to AA | 2024-07-07 | 2024 NBAC Mid Summer Classic venue |
| 50 Backstroke | LCM | 31.55 | AAA+0.56s to AAAA | 2025-07-30 | 2025 MD LSC LC Championships venue |
| 100 Backstroke | LCM | 1:08.96 | AA+0.17s to AAA | 2025-08-01 | 2025 MD LSC LC Championships venue |
| 200 Backstroke | LCM | 2:31.08 | AA+3.49s to AAA | 2025-07-13 | 2025 NBAC Mid Summer Classic venue |
| 50 Breaststroke | LCM | 38.04 | AA+1.25s to AAA | 2025-07-10 | 2025 NBAC Mid Summer Classic venue |
| 100 Breaststroke | LCM | 1:25.79 | BB+0.70s to A | 2024-06-10 | Chargers Long Course Closed Invitational |
| 200 Breaststroke | LCM | 2:58.33 | A+3.54s to AA | 2023-07-09 | 2023 NBAC Mid-Summer Classic venue |
| 50 Butterfly | LCM | 29.69 | AAA+0.30s to AAAA | 2025-07-10 | 2025 NBAC Mid Summer Classic venue |
| 100 Butterfly | LCM | 1:08.57 | AA+2.28s to AAA | 2025-07-11 | 2025 NBAC Mid Summer Classic venue |
| 200 Individual Medley | LCM | 2:32.84 | AA+2.15s to AAA | 2025-08-02 | 2025 MD LSC LC Championships venue |
| 400 Individual Medley | LCM | 5:27.19 | AA+6.60s to AAA | 2025-07-11 | 2025 NBAC Mid Summer Classic venue |
Cuts are USA Swimming single-age motivational standards (B → AAAA) at age 16.
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 | 24.42 | flying | 200 Free Relay (leg 3) | 2024-03-01 | 2024 MD LSC 14 & U Championships |
| 100 Freestyle | SCY | 58.47 | flat | 400 Free Relay | 2022-03-06 | 2022 MD LSC 14 & U CHAMPIONSHIPS |
| 100 Freestyle | SCY | 54.78 | flying | 400 Free Relay (leg 2) | 2024-03-03 | 2024 MD LSC 14 & U Championships |
| 50 Butterfly | SCY | 28.70 | flying | 200 Medley Relay (leg 3) | 2022-03-03 | 2022 MD LSC 14 & U CHAMPIONSHIPS |
| 100 Butterfly | SCY | 57.16 | flying | 400 Medley Relay (leg 3) | 2025-02-21 | 2025 Speedo MD LSC Senior Champs |
| 100 Freestyle | LCM | 1:00.88 | flying | 400 Free Relay (leg 4) | 2025-07-31 | 2025 MD LSC LC Championships |
| 100 Freestyle | LCM | 1:00.94 | flying | 400 Medley Relay (leg 4) | 2025-08-01 | 2025 MD LSC LC Championships |
| 100 Backstroke | LCM | 1:09.99 | flat | 400 Medley Relay | 2023-08-04 | 2023 Speedo Maryland Long Course 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 15-16 · SCY
4621 points (6/6 events)
| Event | Time | Points |
|---|---|---|
| 500 FR SCY | 5:25.08 | 792 |
| 200 BK SCY | 2:11.32 | 795 |
| 200 BR SCY | 2:34.81 | 731 |
| 200 FL SCY | 2:21.96 | 672 |
| 200 IM SCY | 2:10.17 | 876 |
| 400 IM SCY | 4:52.43 | 755 |
IMR 15-16 · SCY
4275 points (5/5 events)
| Event | Time | Points |
|---|---|---|
| 200 FR SCY | 1:55.78 | 900 |
| 100 BK SCY | 59.08 | 855 |
| 100 BR SCY | 1:10.23 | 774 |
| 100 FL SCY | 58.44 | 870 |
| 200 IM SCY | 2:10.17 | 876 |
Scored against AAAA motivational base times: ordering is exact, absolute points run ~25% above the official USA Swimming scale.
PR splits
200 Freestyle SCY 1:55.78
Front half 56.56s · back half 59.22s
500 Freestyle SCY 5:25.08
Front half 156.66s · back half 168.42s
1650 Freestyle SCY 18:34.16
200 Backstroke SCY 2:11.32
Front half 64.03s · back half 67.29s
100 Breaststroke SCY 1:10.23
Front half 33.02s · back half 37.21s
200 Breaststroke SCY 2:34.81
Front half 73.58s · back half 81.23s
100 Butterfly SCY 58.44
Front half 26.88s · back half 31.56s
200 Butterfly SCY 2:21.96
Front half 66.06s · back half 75.90s
100 Individual Medley SCY 59.96
Front half 27.04s · back half 32.92s
200 Individual Medley SCY 2:10.17
Front half 59.87s · back half 70.30s
400 Individual Medley SCY 4:52.43
Front half 139.28s · back half 153.15s
100 Freestyle LCM 1:00.76
Front half 29.67s · back half 31.09s
200 Freestyle LCM 2:10.89
Front half 62.94s · back half 67.95s
400 Freestyle LCM 5:00.67
Front half 144.79s · back half 155.88s
100 Backstroke LCM 1:08.96
Front half 34.00s · back half 34.96s
200 Backstroke LCM 2:31.08
Front half 74.00s · back half 77.08s
100 Breaststroke LCM 1:25.79 split/total mismatch
Front half 40.35s · back half 45.44s
200 Breaststroke LCM 2:58.33
Front half 85.96s · back half 92.37s
100 Butterfly LCM 1:08.57
Front half 32.20s · back half 36.37s
200 Individual Medley LCM 2:32.84
Front half 71.48s · back half 81.36s
400 Individual Medley LCM 5:27.19
Front half 158.73s · back half 168.46s
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.
Progression
Faster times are higher. One card per event, all courses & history.