Katherine Johnson
Personal records
| Event | Course | Best | Cut | Date | Meet |
|---|---|---|---|---|---|
| 50 Freestyle | SCY | 29.53 | BB+0.14s to A·+4.64s to Sectionals | 2026-02-01 | 2026 Mac Crutchfield Invitationalvenue |
| 100 Freestyle | SCY | 1:02.17 | A+0.78s to AA·+8.08s to Sectionals | 2026-07-26 | Area 4fast pool |
| 200 Freestyle | SCY | 2:16.63 | A+2.44s to AA·+19.94s to Sectionals | 2026-09-26 | 2026 Tropic Like It's Hot Openvenue |
| 500 Freestyle | SCY | 5:59.75 | A+0.56s to AA·+49.86s to Sectionals | 2026-09-25 | 2026 Tropic Like It's Hot Openvenue |
| 50 Backstroke | SCY | 33.77 | BB+0.48s to A·+5.18s to Sectionals | 2026-07-26 | Area 4fast pool |
| 100 Backstroke | SCY | 1:13.09 | BB+0.10s to A·+12.30s to Sectionals | 2026-07-25 | Area 4fast pool |
| 200 Backstroke | SCY | 2:41.11 | BB+6.72s to A·+27.82s to Sectionals | 2025-07-25 | 2025 Summer Area 4 Championshipsvenue |
| 50 Breaststroke | SCY | 42.08 | B+1.19s to BB·+8.49s to Sectionals | 2026-09-26 | 2026 Tropic Like It's Hot Openvenue |
| 100 Breaststroke | SCY | 1:28.07 | BB+5.88s to A·+17.18s to Sectionals | 2026-09-27 | 2026 Tropic Like It's Hot Openvenue |
| 50 Butterfly | SCY | 30.42 | A+0.03s to AA·+3.03s to Sectionals | 2026-10-17 | ATAC October 2026 Fall Invitefast pool |
| 100 Butterfly | SCY | 1:05.69 | AA+0.20s to AAA·+6.60s to Sectionals | 2026-07-26 | Area 4fast pool |
| 200 Butterfly | SCY | 2:29.12 | AA+5.03s to AAA·+16.93s to Sectionals | 2026-07-25 | Area 4fast pool |
| 100 Individual Medley | SCY | 1:11.81 | A+1.72s to AA | 2026-07-25 | Area 4fast pool |
| 200 Individual Medley | SCY | 2:31.34 | A+0.25s to AA·+18.75s to Sectionals | 2026-09-25 | 2026 Tropic Like It's Hot Openvenue |
| 400 Individual Medley | SCY | 5:25.68 | A+3.39s to AA·+46.99s to Sectionals | 2026-01-30 | 2026 Mac Crutchfield Invitationalvenue |
| 50 Freestyle | LCM | 33.80 | BB+0.41s to A·+5.41s to Sectionals | 2026-04-11 | CAT5 LC Open 2026 |
| 100 Freestyle | LCM | 1:15.46 | BB+1.97s to A·+14.17s to Sectionals | 2026-06-06 | 2026 Sunshine State Gamesvenue |
| 200 Freestyle | LCM | 2:38.86 | A+5.37s to AA·+26.77s to Sectionals | 2026-06-26 | ATAC Long Course Invitationalvenue |
| 400 Freestyle | LCM | 5:35.47 | A+12.68s to AA·+56.68s to Sectionals | 2026-05-02 | SwimRise IMX/IMR Challengefast pool |
| 50 Backstroke | LCM | 38.66 | BB+0.17s to A·+5.77s to Sectionals | 2026-06-27 | ATAC Long Course Invitationalvenue |
| 100 Backstroke | LCM | 1:22.30 | A+1.51s to AA·+12.51s to Sectionals | 2026-06-28 | ATAC Long Course Invitationalvenue |
| 50 Breaststroke | LCM | 48.11 | B+1.92s to BB·+9.82s to Sectionals | 2026-06-28 | ATAC Long Course Invitationalvenue |
| 100 Breaststroke | LCM | 1:44.11 | B+1.92s to BB·+23.52s to Sectionals | 2026-06-26 | ATAC Long Course Invitationalvenue |
| 50 Butterfly | LCM | 33.18 | AA+0.29s to AAA·+1.89s to Sectionals | 2026-07-10 | 2026 FL Summer Age Group Championshipsvenue |
| 100 Butterfly | LCM | 1:10.82 | AAAA·+3.43s to Sectionals | 2026-07-12 | 2026 FL Summer Age Group Championshipsvenue |
| 200 Butterfly | LCM | 2:45.49 | AAA+7.20s to AAAA·+14.20s to Sectionals | 2026-07-11 | 2026 FL Summer Age Group Championshipsvenue |
| 200 Individual Medley | LCM | 2:55.20 | A+2.01s to AA·+23.81s to Sectionals | 2026-06-27 | ATAC Long Course Invitationalvenue |
Cuts are USA Swimming single-age motivational standards (B → AAAA) at age 12.
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 | 28.74 | flying | 200 Free Relay (leg 2) | 2026-02-01 | 2026 Mac Crutchfield Invitational |
| 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 | 32.03 | flying | 200 Free Relay (leg 2) | 2026-07-10 | 2026 FL Summer Age Group Championships |
| 100 Freestyle | LCM | 1:11.05 | flying | 400 Free Relay (leg 2) | 2026-07-11 | 2026 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 | 33.30 | flying | 200 Medley Relay (leg 3) | 2026-07-09 | 2026 FL Summer Age Group Championships |
| 100 Butterfly | LCM | 1:13.34 | flying | 400 Medley Relay (leg 3) | 2026-07-10 | 2026 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
3586 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 | 1:10.82 | 998 |
| 200 IM LCM | 2:55.20 | 733 |
IMR 11-12 · LCM
3384 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 | 33.18 | 846 |
| 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
200 Freestyle SCY 2:16.63
Front half 67.18s · back half 69.45s
500 Freestyle SCY 5:59.75
Front half 181.60s · back half 178.15s
200 Backstroke SCY 2:41.11
Front half 80.97s · back half 80.14s
50 Breaststroke SCY 42.08
Front half 19.64s · back half 22.44s
100 Breaststroke SCY 1:28.07
Front half 42.05s · back half 46.02s
200 Individual Medley SCY 2:31.34
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
100 Butterfly LCM 1:10.82 RT 0.92s· 510.0 min after 100 Butterfly
Front half 33.78s · back half 37.04s
200 Butterfly LCM 2:45.49 RT 0.94s
Front half 79.48s · back half 86.01s
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.
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.