swimMackenzie Burke
Personal records
| Event | Course | Best | Cut | Date | Meet |
|---|---|---|---|---|---|
| 50 Freestyle | SCY | 28.42 | BB+1.43s to A | 2022-03-13 | 2022 MD LSC JR CHAMPS - FSC SITE venue |
| 100 Freestyle | SCY | 1:02.18 | BB+3.59s to A | 2022-12-11 | 2022 ASC Holiday Invitational venue |
| 200 Freestyle | SCY | 2:13.52 | BB+6.13s to A | 2022-12-10 | 2022 ASC Holiday Invitational venue |
| 500 Freestyle | SCY | 5:57.32 | BB+16.03s to A | 2023-12-09 | 2023 ASC Holiday Invitational venue |
| 1000 Freestyle | SCY | 12:39.56 | BB+44.37s to A | 2022 FSC & EST Distance Dual venue | |
| 1650 Freestyle | SCY | 21:00.42 | BB+81.53s to A | 2022-11-12 | 2022 FSC & EST Distance Dual venue |
| 50 Backstroke | SCY | 31.89 | BB+2.00s to A | 2023-03-12 | 2023 Speedo MD LSC JR Champs - FSC Site venue |
| 100 Backstroke | SCY | 1:06.62 | BB+2.83s to A | 2023-01-22 | 2023 CBAC Winter Wake-Up Meet venue |
| 200 Backstroke | SCY | 2:25.34 | BB+6.65s to A | 2022-03-13 | 2022 MD LSC JR CHAMPS - FSC SITE venue |
| 50 Breaststroke | SCY | 35.89 | BB+0.90s to A | 2023-03-11 | 2023 Speedo MD LSC JR Champs - FSC Site venue |
| 100 Breaststroke | SCY | 1:15.28 | BB+2.29s to A | 2022-03-13 | 2022 MD LSC JR CHAMPS - FSC SITE venue |
| 200 Breaststroke | SCY | 2:40.36 | BB+1.87s to A | 2022-03-13 | 2022 MD LSC JR CHAMPS - FSC SITE venue |
| 50 Butterfly | SCY | 32.27 | BB+2.38s to A | 2021-11-20 | 2021 NBAC Thanksgiving Meet venue |
| 100 Butterfly | SCY | 1:10.61 | B+2.02s to BB | 2023-12-09 | 2023 ASC Holiday Invitational |
| 200 Butterfly | SCY | 2:40.90 | B+9.01s to BB | 2021-12-11 | 2021 ASC Holiday Invitational venue |
| 100 Individual Medley | SCY | 1:09.95 | 2021-11-20 | 2021 NBAC Thanksgiving Meet venue | |
| 200 Individual Medley | SCY | 2:28.61 | BB+6.22s to A | 2023-12-09 | 2023 ASC Holiday Invitational |
| 400 Individual Medley | SCY | 5:18.18 | BB+14.79s to A | 2022-03-11 | 2022 MD LSC JR CHAMPS - FSC SITE venue |
| 50 Freestyle | LCM | 27.71 | AAA+0.62s to AAAA | 2023-04-28 | 2023 NAAC Carol Chidester Invite |
| 100 Freestyle | LCM | 1:11.38 | BB+4.39s to A | 2022-06-04 | 2022 Eagle Swim Team Speedo Sizzler venue |
| 200 Freestyle | LCM | 2:32.43 | BB+7.34s to A | 2022-07-29 | 2022 Summer Junior Champs LCM Meet venue |
| 400 Freestyle | LCM | 5:42.60 | B+11.01s to BB | 2021-07-11 | 2021 EST July Invitational venue |
| 800 Freestyle | LCM | 12:17.89 | B+50.60s to BB | 2022-05-01 | 2022 EST 1500 Distance & IMR Sprint Meet slow pool |
| 1500 Freestyle | LCM | 23:30.01 | B+94.12s to BB | 2022-05-01 | 2022 EST 1500 Distance & IMR Sprint Meet slow pool |
| 100 Backstroke | LCM | 1:15.50 | BB+1.31s to A | 2022-07-09 | 2022 Sandbox Invitational venue |
| 200 Backstroke | LCM | 2:46.22 | BB+5.03s to A | 2022-07-10 | 2022 Sandbox Invitational venue |
| 100 Breaststroke | LCM | 1:25.78 | BB+1.49s to A | 2022-07-08 | 2022 Sandbox Invitational venue |
| 200 Breaststroke | LCM | 2:56.72 | A+0.33s to AA | 2023-04-28 | 2023 NAAC Carol Chidester Invite |
| 100 Butterfly | LCM | 1:32.91 | +8.72s to B | 2021-05-14 | EST Virtual LC Meet #1 venue |
| 200 Individual Medley | LCM | 2:32.17 | AA+2.68s to AAA | 2022-04-30 | 2022 Carol Chidester Invite |
| 400 Individual Medley | LCM | 6:09.62 | BB+21.33s to A | 2021-07-23 | Summer Junior Champs LCM Meet venue |
Cuts are USA Swimming single-age motivational standards (B → AAAA) at age 18.
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 |
|---|---|---|---|---|---|---|
| 100 Freestyle | SCY | 1:02.32 | flying | 400 Free Relay (leg 3) | 2023-03-11 | 2023 Speedo MD LSC JR Champs - FSC Site |
| 50 Backstroke | SCY | 33.26 | flat | 200 Medley Relay | 2023-11-19 | 2023 NBAC Thanksgiving Meet |
| 100 Breaststroke | SCY | 36.55 | flying | 400 Medley Relay (leg 2) | 2023-03-12 | 2023 Speedo MD LSC JR Champs - FSC Site |
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 17-18 · SCY
3332 points (6/6 events)
| Event | Time | Points |
|---|---|---|
| 500 FR SCY | 5:57.32 | 576 |
| 200 BK SCY | 2:25.34 | 550 |
| 200 BR SCY | 2:40.36 | 644 |
| 200 FL SCY | 2:40.90 | 436 |
| 200 IM SCY | 2:28.61 | 562 |
| 400 IM SCY | 5:18.18 | 564 |
IMR 17-18 · LCM
2921 points (5/5 events)
| Event | Time | Points |
|---|---|---|
| 200 FR LCM | 2:32.43 | 561 |
| 100 BK LCM | 1:15.50 | 623 |
| 100 BR LCM | 1:25.78 | 618 |
| 100 FL LCM | 1:32.91 | 307 |
| 200 IM LCM | 2:32.17 | 812 |
Scored against AAAA motivational base times: ordering is exact, absolute points run ~25% above the official USA Swimming scale.
PR splits
100 Freestyle SCY 1:02.18
Front half 29.84s · back half 32.34s
200 Freestyle SCY 2:13.52
Front half 65.40s · back half 68.12s
500 Freestyle SCY 5:57.32
Front half 176.07s · back half 181.25s
1650 Freestyle SCY 21:00.42
100 Backstroke SCY 1:06.62
Front half 32.30s · back half 34.32s
200 Backstroke SCY 2:25.34
Front half 69.19s · back half 76.15s
100 Breaststroke SCY 1:15.28
Front half 35.80s · back half 39.48s
200 Breaststroke SCY 2:40.36
Front half 78.12s · back half 82.24s
200 Butterfly SCY 2:40.90
Front half 74.39s · back half 86.51s
100 Individual Medley SCY 1:09.95
Front half 31.86s · back half 38.09s
400 Individual Medley SCY 5:18.18
Front half 152.75s · back half 165.43s
100 Freestyle LCM 1:11.38
Front half 33.30s · back half 38.08s
200 Freestyle LCM 2:32.43
Front half 72.61s · back half 79.82s
400 Freestyle LCM 5:42.60
Front half 164.69s · back half 177.91s
1500 Freestyle LCM 23:30.01
Front half 690.68s · back half 719.33s
100 Backstroke LCM 1:15.50
Front half 35.91s · back half 39.59s
200 Backstroke LCM 2:46.22
Front half 80.65s · back half 85.57s
100 Breaststroke LCM 1:25.78
Front half 41.09s · back half 44.69s
100 Butterfly LCM 1:32.91
Front half 41.86s · back half 51.05s
400 Individual Medley LCM 6:09.62
Front half 181.69s · back half 187.93s
Progression
Faster times are higher. One card per event, all courses & history.