swimKatherine Johnson
Personal records
| Event | Course | Best | Cut | Date | Meet |
|---|---|---|---|---|---|
| 50 Freestyle | SCY | 29.53 | A+0.24s to AA | 2026-02-01 | 2026 Mac Crutchfield Invitational venue |
| 100 Freestyle | SCY | 1:05.50 | A+1.71s to AA | 2026-01-31 | 2026 Mac Crutchfield Invitational venue |
| 200 Freestyle | SCY | 2:22.33 | A+3.44s to AA | 2026-02-01 | 2026 Mac Crutchfield Invitational venue |
| 500 Freestyle | SCY | 6:20.73 | A+7.74s to AA | 2026-01-30 | 2026 Mac Crutchfield Invitational venue |
| 50 Backstroke | SCY | 35.15 | BB+0.36s to A | 2025-11-01 | 2025 Peanut Invitational - copied |
| 100 Backstroke | SCY | 1:15.61 | A+2.82s to AA | 2025-11-01 | 2025 Peanut Invitational - copied venue |
| 200 Backstroke | SCY | 2:41.11 | A+5.22s to AA | 2025-07-25 | 2025 Summer Area 4 Championships venue |
| 50 Breaststroke | SCY | 42.89 | B+0.60s to BB | 2025-11-01 | 2025 Peanut Invitational - copied venue |
| 100 Breaststroke | SCY | 1:33.22 | B+0.33s to BB | 2025-11-02 | 2025 Peanut Invitational - copied venue |
| 50 Butterfly | SCY | 31.30 | AA+0.71s to AAA | 2026-03-06 | 2026 Florida Swimming FLAGS NORTH venue |
| 100 Butterfly | SCY | 1:09.00 | AA+0.01s to AAA | 2025-10-18 | ATAC Fall Invite venue |
| 200 Butterfly | SCY | 2:40.20 | AA+5.81s to AAA | 2026-03-08 | 2026 Florida Swimming FLAGS NORTH venue |
| 100 Individual Medley | SCY | 1:14.38 | A+1.59s to AA | 2025-12-06 | 2025 Speedo Gator Holiday Classic fast pool |
| 200 Individual Medley | SCY | 2:31.88 | AA+0.39s to AAA | 2026-03-07 | 2026 Florida Swimming FLAGS NORTH venue |
| 400 Individual Medley | SCY | 5:25.68 | AA+1.89s to AAA | 2026-01-30 | 2026 Mac Crutchfield Invitational venue |
| 50 Freestyle | LCM | 33.80 | A+0.41s to AA | 2026-04-11 | CAT5 LC Open 2026 venue |
| 100 Freestyle | LCM | 1:15.46 | A+2.17s to AA | 2026-06-06 | 2026 Sunshine State Games venue |
| 200 Freestyle | LCM | 2:38.86 | A+0.37s to AA | 2026-06-26 | ATAC Long Course Invitational venue |
| 400 Freestyle | LCM | 5:35.47 | AA+14.28s to AAA | 2026-05-02 | SwimRise IMX/IMR Challenge venue |
| 50 Backstroke | LCM | 38.66 | A+0.17s to AA | 2026-06-27 | ATAC Long Course Invitational venue |
| 100 Backstroke | LCM | 1:22.30 | AA+1.51s to AAA | 2026-06-28 | ATAC Long Course Invitational venue |
| 50 Breaststroke | LCM | 48.11 | BB+3.22s to A | 2026-06-28 | ATAC Long Course Invitational venue |
| 100 Breaststroke | LCM | 1:44.11 | BB+5.32s to A | 2026-06-26 | ATAC Long Course Invitational venue |
| 50 Butterfly | LCM | 33.84 | AAA+1.15s to AAAA | 2026-06-26 | ATAC Long Course Invitational venue |
| 100 Butterfly | LCM | 1:14.11 | AAAA | 2026-06-28 | ATAC Long Course Invitational venue |
| 200 Individual Medley | LCM | 2:55.20 | AA+1.91s to AAA | 2026-06-27 | ATAC Long Course Invitational venue |
Cuts are USA Swimming single-age motivational standards (B → AAAA) at age 11.
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 | 29.06 | flying | 200 Free Relay (leg 2) | 2026-03-05 | 2026 Florida Swimming FLAGS NORTH |
| 100 Freestyle | SCY | 1:04.09 | flying | 400 Free Relay (leg 2) | 2026-03-08 | 2026 Florida Swimming FLAGS NORTH |
| 50 Butterfly | SCY | 30.67 | flying | 200 Medley Relay (leg 3) | 2026-03-07 | 2026 Florida Swimming FLAGS NORTH |
| 100 Butterfly | SCY | 1:10.88 | flying | 400 Medley Relay (leg 3) | 2026-03-05 | 2026 Florida Swimming FLAGS NORTH |
| 50 Freestyle | LCM | 36.58 | flying | 200 Free Relay (leg 2) | 2024-07-14 | 2024 FL Summer Age Group Championships |
| 50 Backstroke | LCM | 44.52 | flat | 200 Medley Relay | 2024-07-13 | 2024 FL Summer Age Group Championships |
| 50 Butterfly | LCM | 36.16 | flying | 200 Medley Relay (leg 3) | 2025-07-12 | 2025 FL Summer Age Group 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 · LCM
3459 points (5/5 events)
| Event | Time | Points |
|---|---|---|
| 400 FR LCM | 5:35.47 | 677 |
| 100 BK LCM | 1:22.30 | 694 |
| 100 BR LCM | 1:44.11 | 484 |
| 100 FL LCM | 1:14.11 | 871 |
| 200 IM LCM | 2:55.20 | 733 |
IMR 11-12 · LCM
3336 points (5/5 events)
| Event | Time | Points |
|---|---|---|
| 200 FR LCM | 2:38.86 | 681 |
| 50 BK LCM | 38.66 | 655 |
| 50 BR LCM | 48.11 | 469 |
| 50 FL LCM | 33.84 | 798 |
| 200 IM LCM | 2:55.20 | 733 |
Scored against AAAA motivational base times: ordering is exact, absolute points run ~25% above the official USA Swimming scale.
PR splits
100 Freestyle SCY 1:05.50
Front half 31.18s · back half 34.32s
200 Freestyle SCY 2:22.33
Front half 67.77s · back half 74.56s
500 Freestyle SCY 6:20.73
Front half 150.15s · back half 230.58s
100 Backstroke SCY 1:15.61
Front half 36.97s · back half 38.64s
200 Backstroke SCY 2:41.11
Front half 80.97s · back half 80.14s
50 Breaststroke SCY 42.89
Front half 20.19s · back half 22.70s
100 Breaststroke SCY 1:33.22
Front half 45.32s · back half 47.90s
100 Butterfly SCY 1:09.00
200 Butterfly SCY 2:40.20
Front half 74.88s · back half 85.32s
100 Individual Medley SCY 1:14.38
Front half 34.32s · back half 40.06s
200 Individual Medley SCY 2:31.88
Front half 71.84s · back half 80.04s
400 Individual Medley SCY 5:25.68
Front half 158.42s · back half 167.26s
100 Freestyle LCM 1:15.46
Front half 37.02s · back half 38.44s
200 Freestyle LCM 2:38.86
Front half 77.99s · back half 80.87s
400 Freestyle LCM 5:35.47
Front half 167.32s · back half 168.15s
200 Individual Medley LCM 2:55.20
Front half 81.66s · back half 93.54s
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.