MacKenzie Johnson
Personal records
| Event | Course | Best | Cut | Date | Meet |
|---|---|---|---|---|---|
| 50 Freestyle | SCY | 29.28 | A+1.09s to AA·+3.99s to Sectionals | 2026-07-18 | 2026 ISI Summer ECST Regionalvenue |
| 100 Freestyle | SCY | 1:21.51 | +6.82s to B·+27.02s to Sectionals | 2024-11-03 | Greater Kalamazoo Arena Challengevenue |
| 500 Freestyle | SCY | 6:31.80 | BB+16.91s to A·+76.81s to Sectionals | 2026-02-28 | 2026 Winter ISI Regionals- HSC - copiedvenue |
| 50 Backstroke | SCY | 42.94 | +4.15s to B·+15.65s to Sectionals | 2024-07-13 | 2024 IL SCST Summer Regional Championshipsvenue |
| 100 Backstroke | SCY | 1:16.52 | BB+3.53s to A·+16.03s to Sectionals | 2026-07-19 | 2026 ISI Summer ECST Regionalvenue |
| 200 Backstroke | SCY | 2:41.23 | BB+6.84s to A·+29.74s to Sectionals | 2026-02-27 | 2026 Winter ISI Regionals- HSC - copiedvenue |
| 50 Breaststroke | SCY | 38.53 | BB+0.84s to A·+7.84s to Sectionals | 2026-07-19 | 2026 ISI Summer ECST Regionalvenue |
| 100 Breaststroke | SCY | 1:22.37 | BB+0.18s to A·+12.88s to Sectionals | 2026-07-18 | 2026 ISI Summer ECST Regionalvenue |
| 200 Breaststroke | SCY | 2:54.10 | A+5.01s to AA·+23.11s to Sectionals | 2026-02-27 | 2026 Winter ISI Regionals- HSC - copiedvenue |
| 50 Butterfly | SCY | 38.94 | +1.95s to B·+12.25s to Sectionals | 2025-07-20 | 2025 ISI Summer LWSA Regionalvenue |
| 100 Butterfly | SCY | 1:19.78 | B+0.59s to BB·+20.19s to Sectionals | 2026-02-28 | 2026 Winter ISI Regionals- HSC - copiedvenue |
| 100 Individual Medley | SCY | 1:15.35 | BB+2.26s to A | 2026-03-01 | 2026 Winter ISI Regionals- HSC - copiedvenue |
| 200 Individual Medley | SCY | 2:39.73 | BB+2.04s to A·+26.74s to Sectionals | 2026-07-18 | 2026 ISI Summer ECST Regionalvenue |
| 400 Individual Medley | SCY | 5:36.60 | BB+0.31s to A·+52.61s to Sectionals | 2026-07-17 | 2026 ISI Summer ECST Regionalvenue |
| 50 Freestyle | LCM | 32.62 | A+0.63s to AA·+3.83s to Sectionals | 2026-05-17 | 2024 Speedo Grand Chalengevenue |
| 100 Freestyle | LCM | 1:14.44 | BB+0.95s to A·+12.65s to Sectionals | 2026-05-16 | 2024 Speedo Grand Chalengevenue |
| 200 Freestyle | LCM | 2:45.85 | BB+5.76s to A·+32.76s to Sectionals | 2026-05-15 | 2024 Speedo Grand Chalengevenue |
| 400 Freestyle | LCM | 5:58.76 | BB+21.97s to A·+76.37s to Sectionals | 2026-05-16 | 2024 Speedo Grand Chalengevenue |
| 50 Breaststroke | LCM | 42.71 | BB+0.02s to A·+7.12s to Sectionals | 2026-05-16 | 2024 Speedo Grand Chalengevenue |
| 100 Breaststroke | LCM | 1:36.38 | BB+2.39s to A·+16.39s to Sectionals | 2026-05-17 | 2024 Speedo Grand Chalengevenue |
| 100 Butterfly | LCM | 1:30.73 | B+0.14s to BB·+22.64s to Sectionals | 2026-05-17 | 2024 Speedo Grand Chalengevenue |
| 200 Individual Medley | LCM | 3:04.39 | BB+3.70s to A·+33.10s to Sectionals | 2026-05-15 | 2024 Speedo Grand Chalengevenue |
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.
Fastest relay legs
| Leg | Course | Time | Start | Relay | Date | Meet |
|---|---|---|---|---|---|---|
| 50 Freestyle | SCY | 29.81 | flat | 200 Free Relay | 2026-07-19 | 2026 ISI Summer ECST Regional |
| 50 Freestyle | LCM | 32.34 | flat | 200 Free Relay | 2026-07-30 | IL Swimming 11-14 Age Group Champs LC 26 |
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 · SCY
2894 points (5/5 events)
| Event | Time | Points |
|---|---|---|
| 500 FR SCY | 6:31.80 | 585 |
| 100 BK SCY | 1:16.52 | 549 |
| 100 BR SCY | 1:22.37 | 653 |
| 100 FL SCY | 1:19.78 | 464 |
| 200 IM SCY | 2:39.73 | 643 |
IMR 11-12 · SCY
1905 points (4/5 events — incomplete)
| Event | Time | Points |
|---|---|---|
| 50 BK SCY | 42.94 | 310 |
| 50 BR SCY | 38.53 | 627 |
| 50 FL SCY | 38.94 | 359 |
| 100 IM SCY | 1:15.35 | 609 |
| 200 FR SCY | — | 0 |
Scored against AAAA motivational base times: ordering is exact, absolute points run ~25% above the official USA Swimming scale.
PR splits
100 Freestyle SCY 1:21.51
Front half 37.94s · back half 43.57s
500 Freestyle SCY 6:31.80
Front half 193.75s · back half 198.05s
100 Backstroke SCY 1:16.52
Front half 37.89s · back half 38.63s
200 Backstroke SCY 2:41.23
Front half 78.35s · back half 82.88s
100 Breaststroke SCY 1:22.37
Front half 38.59s · back half 43.78s
200 Breaststroke SCY 2:54.10
Front half 83.43s · back half 90.67s
100 Butterfly SCY 1:19.78
Front half 37.58s · back half 42.20s
100 Individual Medley SCY 1:15.35
Front half 35.12s · back half 40.23s
200 Individual Medley SCY 2:39.73
Front half 74.86s · back half 84.87s
400 Individual Medley SCY 5:36.60
Front half 164.46s · back half 172.14s
100 Freestyle LCM 1:14.44
Front half 35.71s · back half 38.73s
200 Freestyle LCM 2:45.85
Front half 77.77s · back half 88.08s
400 Freestyle LCM 5:58.76
Front half 171.97s · back half 186.79s
100 Breaststroke LCM 1:36.38
Front half 45.92s · back half 50.46s
100 Butterfly LCM 1:30.73
Front half 42.67s · back half 48.06s
200 Individual Medley LCM 3:04.39
Front half 89.07s · back half 95.32s
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.