swimMackenzie Kaufenberg
Personal records
| Event | Course | Best | Cut | Date | Meet |
|---|---|---|---|---|---|
| 50 Freestyle | SCY | 25.52 | AA+0.13s to AAA·+0.23s to Sectionals | 2026-01-11 | 2026 MN FOXJ Winter Classic venue |
| 100 Freestyle | SCY | 53.87 | AAA+1.28s to AAAA·Sectionals ✓+1.98s to Futures | 2026-01-10 | 2026 MN FOXJ Winter Classic venue |
| 200 Freestyle | SCY | 1:55.64 | AAA+2.15s to AAAA·Sectionals ✓+3.35s to Futures | 2026-02-14 | 2026 MN RSC President's Day Meet venue |
| 500 Freestyle | SCY | 5:18.32 | AAA+12.23s to AAAA·+3.33s to Sectionals | 2025-12-05 | 2025 MN AQJT 14&U Single Age State Meet - cop venue |
| 50 Backstroke | SCY | 27.57 | AAA+0.58s to AAAA·+0.28s to Sectionals | 2026-03-13 | 2026 MN AQJT Senior SC State Championship venue |
| 100 Backstroke | SCY | 58.22 | AAA+1.23s to AAAA·Sectionals ✓+1.13s to Futures | 2026-01-10 | 2026 MN FOXJ Winter Classic venue |
| 200 Backstroke | SCY | 2:06.16 | AAA+2.47s to AAAA·Sectionals ✓+1.97s to Futures | 2026-02-13 | 2026 MN RSC President's Day Meet venue |
| 100 Butterfly | SCY | 1:00.93 | AA+1.34s to AAA·+1.34s to Sectionals | 2026-01-31 | 2026 MN MTKA TYR Team Challenge venue |
| 100 Individual Medley | SCY | 1:02.13 | 2026-03-14 | 2026 MN AQJT Senior SC State Championship venue | |
| 200 Individual Medley | SCY | 2:25.25 | BB+0.46s to A·+12.26s to Sectionals | 2025-12-21 | 2025 MN AQJT Holiday Invite venue |
| 50 Freestyle | LCM | 29.00 | AA+0.01s to AAA·+0.21s to Sectionals | 2026-06-12 | 2026 MN AQJT Aquajets Summer Spectacular venue |
| 100 Freestyle | LCM | 1:01.95 | AAA+2.26s to AAAA·+0.16s to Sectionals | 2026-06-28 | 2026 STAR Summer Splash Invite fast pool |
| 200 Freestyle | LCM | 2:11.73 | AAA+2.34s to AAAA·Sectionals ✓+3.94s to Futures | 2026-05-29 | 2026 MN WOLF HUFF N PUFF INVITE venue |
| 400 Freestyle | LCM | 4:40.28 | AAA+8.09s to AAAA·Sectionals ✓+11.49s to Futures | 2026-05-28 | 2026 MN WOLF HUFF N PUFF INVITE venue |
| 50 Backstroke | LCM | 31.50 | AAAA·+0.01s to Sectionals | 2026-06-12 | 2026 MN AQJT Aquajets Summer Spectacular venue |
| 100 Backstroke | LCM | 1:07.07 | AAA+0.78s to AAAA·Sectionals ✓+0.28s to Futures | 2026-05-17 | 2026 MN HURR LC Spring Opener venue |
| 200 Backstroke | LCM | 2:23.43 | AAA+0.94s to AAAA·Futures ✓+3.84s to Winter JNs | 2026-06-13 | 2026 MN AQJT Aquajets Summer Spectacular venue |
| 50 Breaststroke | LCM | 40.02 | A+1.33s to AA·+4.43s to Sectionals | 2026-06-07 | 2026 MN NSAC Summer Invite venue |
| 100 Breaststroke | LCM | 1:30.16 | BB+4.27s to A·+10.17s to Sectionals | 2026-06-27 | 2026 STAR Summer Splash Invite fast pool |
| 100 Butterfly | LCM | 1:10.00 | AA+2.61s to AAA·+1.91s to Sectionals | 2026-06-13 | 2026 MN AQJT Aquajets Summer Spectacular venue |
| 200 Individual Medley | LCM | 2:32.44 | AAA+6.55s to AAAA·+1.15s to Sectionals | 2026-06-28 | 2026 STAR Summer Splash Invite fast pool |
Cuts are USA Swimming single-age motivational standards (B → AAAA) at age 15.
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 |
|---|---|---|---|---|---|---|
| 200 Freestyle | SCY | 1:57.76 | flying | 800 Free Relay (leg 4) | 2026-03-12 | 2026 MN AQJT Senior SC 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 15-16 · LCM
2621 points (3/6 events — incomplete)
| Event | Time | Points |
|---|---|---|
| 400 FR LCM | 4:40.28 | 858 |
| 200 BK LCM | 2:23.43 | 931 |
| 200 IM LCM | 2:32.44 | 832 |
| 200 BR LCM | — | 0 |
| 200 FL LCM | — | 0 |
| 400 IM LCM | — | 0 |
IMR 15-16 · LCM
3934 points (5/5 events)
| Event | Time | Points |
|---|---|---|
| 200 FR LCM | 2:11.73 | 893 |
| 100 BK LCM | 1:07.07 | 918 |
| 100 BR LCM | 1:30.16 | 552 |
| 100 FL LCM | 1:10.00 | 739 |
| 200 IM LCM | 2:32.44 | 832 |
Scored against AAAA motivational base times: ordering is exact, absolute points run ~25% above the official USA Swimming scale.
PR splits
100 Freestyle SCY 53.87
Front half 26.21s · back half 27.66s
200 Freestyle SCY 1:55.64
Front half 56.92s · back half 58.72s
500 Freestyle SCY 5:18.32
Front half 155.21s · back half 163.11s
100 Backstroke SCY 58.22
Front half 28.57s · back half 29.65s
200 Backstroke SCY 2:06.16
Front half 61.87s · back half 64.29s
100 Butterfly SCY 1:00.93
Front half 29.32s · back half 31.61s
100 Individual Medley SCY 1:02.13 RT 0.72s
Front half 27.60s · back half 34.53s
200 Individual Medley SCY 2:25.25
Front half 67.45s · back half 77.80s
100 Freestyle LCM 1:01.95
Front half 30.27s · back half 31.68s
200 Freestyle LCM 2:11.73
Front half 64.07s · back half 67.66s
400 Freestyle LCM 4:40.28
Front half 138.18s · back half 142.10s
100 Backstroke LCM 1:07.07
Front half 33.02s · back half 34.05s
200 Backstroke LCM 2:23.43
Front half 70.40s · back half 73.03s
100 Breaststroke LCM 1:30.16
Front half 42.38s · back half 47.78s
100 Butterfly LCM 1:10.00
Front half 33.09s · back half 36.91s
200 Individual Medley LCM 2:32.44
Front half 69.02s · back half 83.42s
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.
Progression
Faster times are higher. One card per event, all courses & history.