swimMackenzie Johnson
Personal records
| Event | Course | Best | Cut | Date | Meet |
|---|---|---|---|---|---|
| 50 Freestyle | SCY | 37.28 | +1.89s to B·+11.99s to Sectionals | 2026-10-24 | 2026 MN SDVL Halloween Spooktacularvenue |
| 100 Freestyle | SCY | 1:24.06 | +6.37s to B·+29.57s to Sectionals | 2026-10-04 | 2026 MN WAVE Fall Frenzyvenue |
| 200 Freestyle | SCY | 3:06.00 | +16.91s to B·+68.11s to Sectionals | 2026-11-08 | 2026 MN TUNA Turkey Trotvenue |
| 500 Freestyle | SCY | 8:42.55 | +68.56s to B·+207.56s to Sectionals | 2026-05-02 | 2026 MN TUNA Spring Splashvenue |
| 50 Backstroke | SCY | 48.30 | +7.71s to B·+21.01s to Sectionals | 2026-02-22 | 2026 MN FOXJ MN Bronze Championshipvenue |
| 100 Backstroke | SCY | 1:45.13 | +14.44s to B·+44.64s to Sectionals | 2025-11-23 | 2025 MN WAVE Tidal Wave Invitevenue |
| 200 Backstroke | SCY | 3:45.17 | +35.48s to B·+93.68s to Sectionals | 2025-12-21 | 2025 MN AQJT Holiday Invitevenue |
| 50 Breaststroke | SCY | 49.85 | +4.36s to B·+19.16s to Sectionals | 2026-10-04 | 2026 MN WAVE Fall Frenzyvenue |
| 100 Breaststroke | SCY | 1:50.53 | +10.24s to B·+41.04s to Sectionals | 2026-10-24 | 2026 MN SDVL Halloween Spooktacularvenue |
| 50 Butterfly | SCY | 48.46 | +9.57s to B·+21.77s to Sectionals | 2026-10-24 | 2026 MN SDVL Halloween Spooktacularvenue |
| 100 Butterfly | SCY | 1:35.22 | +4.43s to B·+35.63s to Sectionals | 2026-05-28 | 2026 MN WAVE A-May-Zing Minni Meetvenue |
| 100 Individual Medley | SCY | 1:42.11 | +13.42s to B | 2026-05-03 | 2026 MN TUNA Spring Splashvenue |
| 200 Individual Medley | SCY | 3:31.45 | +18.66s to B·+78.46s to Sectionals | 2026-11-08 | 2026 MN TUNA Turkey Trotvenue |
| 50 Freestyle | LCM | 44.12 | +3.73s to B·+15.33s to Sectionals | 2026-07-12 | 2026 MN BAC Last Chance Invitationalvenue |
| 100 Freestyle | LCM | 1:39.66 | +10.47s to B·+37.87s to Sectionals | 2026-07-18 | 2026 MN STRM Minnesota Regional Championshipvenue |
| 200 Freestyle | LCM | 3:53.45 | +40.46s to B·+100.36s to Sectionals | 2026-07-12 | 2026 MN BAC Last Chance Invitationalvenue |
| 400 Freestyle | LCM | 8:05.92 | +77.23s to B·+203.53s to Sectionals | 2026-07-19 | 2026 MN STRM Minnesota Regional Championshipvenue |
| 50 Backstroke | LCM | 1:09.06 | +22.27s to B·+37.57s to Sectionals | 2025-06-22 | 2025 MN TUNA Oppor-TUNA-ty 2 Inviteslow pool |
| 100 Backstroke | LCM | 2:18.67 | +32.88s to B·+68.18s to Sectionals | 2026-06-21 | 2026 MN TUNA Summer Splashslow pool |
| 50 Breaststroke | LCM | 59.16 | +6.87s to B·+23.57s to Sectionals | 2026-07-19 | 2026 MN STRM Minnesota Regional Championshipvenue |
| 100 Breaststroke | LCM | 2:00.55 | +4.66s to B·+40.56s to Sectionals | 2026-07-18 | 2026 MN STRM Minnesota Regional Championshipvenue |
| 50 Butterfly | LCM | 59.86 | +16.27s to B·+29.57s to Sectionals | 2026-07-11 | 2026 MN BAC Last Chance Invitationalvenue |
| 200 Individual Medley | LCM | 4:16.71 | +36.12s to B·+105.42s to Sectionals | 2026-07-11 | 2026 MN BAC Last Chance Invitationalvenue |
Cuts are USA Swimming single-age motivational standards (B → AAAA) at age 11.
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 | 44.36 | flat | 200 Free Relay | 2026-02-22 | 2026 MN FOXJ MN Bronze Championship |
| 50 Backstroke | SCY | 48.97 | flat | 200 Medley Relay | 2026-01-10 | 2026 MN MONC New Years Invite |
| 50 Breaststroke | SCY | 53.21 | flying | 200 Medley Relay (leg 2) | 2026-02-28 | 2026 MN MTKA Minnesota Regional Championship |
| 50 Breaststroke | LCM | 1:01.04 | flying | 200 Medley Relay (leg 2) | 2026-07-18 | 2026 MN STRM Minnesota Regional 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 11-12 · SCY
1278 points (5/5 events)
| Event | Time | Points |
|---|---|---|
| 500 FR SCY | 8:42.55 | 246 |
| 100 BK SCY | 1:45.13 | 212 |
| 100 BR SCY | 1:50.53 | 270 |
| 100 FL SCY | 1:35.22 | 273 |
| 200 IM SCY | 3:31.45 | 277 |
IMR 11-12 · SCY
1218 points (5/5 events)
| Event | Time | Points |
|---|---|---|
| 200 FR SCY | 3:06.00 | 281 |
| 50 BK SCY | 48.30 | 218 |
| 50 BR SCY | 49.85 | 289 |
| 50 FL SCY | 48.46 | 186 |
| 100 IM SCY | 1:42.11 | 244 |
Scored against AAAA motivational base times: ordering is exact, absolute points run ~25% above the official USA Swimming scale.
PR splits
100 Freestyle SCY 1:24.06
Front half 43.27s · back half 40.79s
200 Freestyle SCY 3:06.00
Front half 90.75s · back half 95.25s
500 Freestyle SCY 8:42.55
Front half 259.13s · back half 263.42s
100 Backstroke SCY 1:45.13
Front half 49.55s · back half 55.58s
200 Backstroke SCY 3:45.17
Front half 112.05s · back half 113.12s
100 Breaststroke SCY 1:50.53
Front half 53.13s · back half 57.40s
100 Butterfly SCY 1:35.22
100 Individual Medley SCY 1:42.11
Front half 50.98s · back half 51.13s
200 Individual Medley SCY 3:31.45
Front half 104.67s · back half 106.78s
100 Freestyle LCM 1:39.66
Front half 47.92s · back half 51.74s
200 Freestyle LCM 3:53.45
Front half 118.08s · back half 115.37s
400 Freestyle LCM 8:05.92
Front half 246.97s · back half 238.95s
100 Breaststroke LCM 2:00.55
Front half 58.69s · back half 61.86s
200 Individual Medley LCM 4:16.71
Front half 134.63s · back half 122.08s
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.