swimMackenzie Johnson
Personal records
| Event | Course | Best | Cut | Date | Meet |
|---|---|---|---|---|---|
| 50 Freestyle | SCY | 28.42 | A+0.23s to AA·+3.53s to Sectionals | 2019-12-15 | LEXD Sprint to Christmas 2019venue |
| 100 Freestyle | SCY | 1:02.60 | A+1.21s to AA·+8.51s to Sectionals | 2019-11-16 | Kentucky Aquatics Autumn Classicvenue |
| 200 Freestyle | SCY | 2:19.29 | A+5.10s to AA·+22.60s to Sectionals | 2019-11-17 | Kentucky Aquatics Autumn Classicvenue |
| 500 Freestyle | SCY | 6:29.98 | BB+15.09s to A·+80.09s to Sectionals | 2019-11-15 | Kentucky Aquatics Autumn Classicvenue |
| 50 Backstroke | SCY | 33.00 | A+1.11s to AA·+4.41s to Sectionals | 2019-03-10 | LEXD Race to State 2019slow pool |
| 100 Backstroke | SCY | 1:12.60 | A+3.01s to AA·+11.81s to Sectionals | 2019-11-17 | Kentucky Aquatics Autumn Classicvenue |
| 50 Breaststroke | SCY | 38.30 | BB+0.61s to A·+4.71s to Sectionals | 2019-12-15 | LEXD Sprint to Christmas 2019venue |
| 100 Breaststroke | SCY | 1:26.22 | BB+4.03s to A·+15.33s to Sectionals | 2019-11-16 | Kentucky Aquatics Autumn Classicvenue |
| 50 Butterfly | SCY | 33.22 | BB+1.53s to A·+5.83s to Sectionals | 2019-12-15 | LEXD Sprint to Christmas 2019venue |
| 100 Butterfly | SCY | 1:24.50 | B+5.31s to BB·+25.41s to Sectionals | 2019-11-16 | Kentucky Aquatics Autumn Classicvenue |
| 100 Individual Medley | SCY | 1:13.96 | BB+0.87s to A | 2019-12-15 | LEXD Sprint to Christmas 2019venue |
| 200 Individual Medley | SCY | 2:42.08 | BB+4.39s to A·+29.49s to Sectionals | 2019-11-15 | Kentucky Aquatics Autumn Classicvenue |
| 50 Freestyle | LCM | 31.84 | AA+1.15s to AAA·+3.45s to Sectionals | 2019-01-01 | 2019 KY LC 12 & Under State Championship |
| 100 Freestyle | LCM | 1:15.93 | BB+2.44s to A·+14.64s to Sectionals | 2019-05-18 | 2019 KYA Derby Classic Invitationalvenue |
| 200 Freestyle | LCM | 2:53.84 | B+0.35s to BB·+41.75s to Sectionals | 2019-05-19 | 2019 KYA Derby Classic Invitationalvenue |
| 400 Freestyle | LCM | 5:57.16 | BB+20.37s to A·+78.37s to Sectionals | 2019-05-17 | 2019 KYA Derby Classic Invitationalvenue |
| 50 Backstroke | LCM | 37.87 | A+0.98s to AA·+4.98s to Sectionals | 2019-01-01 | 2019 KY LC 12 & Under State Championship |
| 100 Backstroke | LCM | 1:24.56 | A+3.77s to AA·+14.77s to Sectionals | 2019-05-19 | 2019 KYA Derby Classic Invitationalvenue |
| 50 Breaststroke | LCM | 48.78 | B+2.59s to BB·+10.49s to Sectionals | 2019-05-19 | 2019 KYA Derby Classic Invitationalvenue |
| 100 Breaststroke | LCM | 1:47.89 | B+5.70s to BB·+27.30s to Sectionals | 2019-05-18 | 2019 KYA Derby Classic Invitationalvenue |
| 50 Butterfly | LCM | 43.04 | +1.25s to B·+11.75s to Sectionals | 2019-05-18 | 2019 KYA Derby Classic 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 | 28.66 | flying | 200 Free Relay (leg 3) | 2019-03-16 | 2019 12 & U SCY Kentucky Championship |
| 50 Backstroke | SCY | 34.83 | flat | 200 Medley Relay | 2019-03-17 | 2019 12 & U SCY Kentucky Championship |
| 50 Freestyle | LCM | 32.15 | flying | 200 Free Relay (leg 4) | 2019-07-20 | 2019 KY 12 & U LCM State 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
2812 points (5/5 events)
| Event | Time | Points |
|---|---|---|
| 500 FR SCY | 6:29.98 | 593 |
| 100 BK SCY | 1:12.60 | 643 |
| 100 BR SCY | 1:26.22 | 570 |
| 100 FL SCY | 1:24.50 | 391 |
| 200 IM SCY | 2:42.08 | 615 |
IMR 11-12 · SCY
3216 points (5/5 events)
| Event | Time | Points |
|---|---|---|
| 200 FR SCY | 2:19.29 | 670 |
| 50 BK SCY | 33.00 | 684 |
| 50 BR SCY | 38.30 | 639 |
| 50 FL SCY | 33.22 | 579 |
| 100 IM SCY | 1:13.96 | 644 |
Scored against AAAA motivational base times: ordering is exact, absolute points run ~25% above the official USA Swimming scale.
PR splits
100 Freestyle SCY 1:02.60
Front half 29.92s · back half 32.68s
200 Freestyle SCY 2:19.29
Front half 66.21s · back half 73.08s
500 Freestyle SCY 6:29.98
Front half 193.49s · back half 196.49s
100 Backstroke SCY 1:12.60
Front half 35.34s · back half 37.26s
100 Breaststroke SCY 1:26.22
Front half 40.77s · back half 45.45s
100 Butterfly SCY 1:24.50
Front half 38.57s · back half 45.93s
100 Individual Medley SCY 1:13.96
Front half 32.98s · back half 40.98s
200 Individual Medley SCY 2:42.08
Front half 77.09s · back half 84.99s
100 Freestyle LCM 1:15.93
Front half 36.73s · back half 39.20s
200 Freestyle LCM 2:53.84
Front half 81.60s · back half 92.24s
400 Freestyle LCM 5:57.16
Front half 171.89s · back half 185.27s
100 Backstroke LCM 1:24.56 RT 0.67s
Front half 40.09s · back half 44.47s
100 Breaststroke LCM 1:47.89
Front half 50.97s · back half 56.92s
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.