swimMackenzie Sederland
Personal records
| Event | Course | Best | Cut | Date | Meet |
|---|---|---|---|---|---|
| 25 Freestyle | SCY | 16.35 | 2022-11-06 | Kelly Kinney Memorial -Splash Out Cancer 2022venue | |
| 50 Freestyle | SCY | 32.94 | B+1.25s to BB·+7.65s to Sectionals | 2023-10-07 | CCS Age Group and Open Swim Meetvenue |
| 100 Freestyle | SCY | 1:10.61 | B+1.22s to BB·+16.12s to Sectionals | 2024-05-05 | LESD May Madnessslow pool |
| 200 Freestyle | SCY | 2:23.82 | BB+3.83s to A·+25.93s to Sectionals | 2024-11-24 | The 2024 Mark J. Braun Fall Classicvenue |
| 500 Freestyle | SCY | 6:23.69 | BB+8.80s to A·+68.70s to Sectionals | 2024-12-06 | 2024 TYR NCAT Winter Invitevenue |
| 1650 Freestyle | SCY | 19:30.59 | AAA+40.00s to AAAA·+74.10s to Sectionals | 2025-11-16 | 2025 OH BGSC Virtual Distance |
| 50 Backstroke | SCY | 34.34 | BB+1.05s to A·+7.05s to Sectionals | 2021-11-21 | The Mark J. Braun Fall Classic 2022fast pool |
| 100 Backstroke | SCY | 1:13.47 | BB+0.48s to A·+12.98s to Sectionals | 2024-11-24 | The 2024 Mark J. Braun Fall Classicvenue |
| 200 Backstroke | SCY | 2:24.87 | AA+3.38s to AAA·+13.38s to Sectionals | 2026-03-15 | 2026 OH SC Junior Championshipsfast pool |
| 25 Breaststroke | SCY | 22.44 | 2022-11-06 | Kelly Kinney Memorial -Splash Out Cancer 2022venue | |
| 50 Breaststroke | SCY | 35.68 | AA+1.09s to AAA·+4.99s to Sectionals | 2026-03-15 | 2026 OH SC Junior Championshipsfast pool |
| 100 Breaststroke | SCY | 1:16.13 | AA+1.04s to AAA·+6.64s to Sectionals | 2026-03-13 | 2026 OH SC Junior Championshipsfast pool |
| 200 Breaststroke | SCY | 2:42.02 | AA+0.23s to AAA·+11.03s to Sectionals | 2026-03-14 | 2026 OH SC Junior Championshipsfast pool |
| 50 Butterfly | SCY | 31.41 | A+1.02s to AA·+4.72s to Sectionals | 2026-03-15 | 2026 OH SC Junior Championshipsfast pool |
| 100 Butterfly | SCY | 1:18.72 | BB+6.43s to A·+19.13s to Sectionals | 2024-11-24 | The 2024 Mark J. Braun Fall Classicvenue |
| 100 Individual Medley | SCY | 1:07.82 | AA+0.83s to AAA | 2026-03-15 | 2026 OH SC Junior Championshipsfast pool |
| 200 Individual Medley | SCY | 2:25.03 | AA+0.44s to AAA·+12.04s to Sectionals | 2026-03-13 | 2026 OH SC Junior Championshipsfast pool |
| 400 Individual Medley | SCY | 5:00.81 | AAA+6.52s to AAAA·+16.82s to Sectionals | 2026-03-12 | 2026 OH SC Junior Championshipsfast pool |
| 50 Freestyle | LCM | 35.45 | BB+2.06s to A·+6.66s to Sectionals | 2021-06-18 | Holtrey Summer Classic |
| 100 Freestyle | LCM | 1:16.73 | BB+3.24s to A·+14.94s to Sectionals | 2024-07-28 | 2024 LE Age Group and Senior LC Championshipsvenue |
| 200 Freestyle | LCM | 2:46.15 | BB+6.06s to A·+33.06s to Sectionals | 2024-05-19 | 2024 Robert F. Busbey Invitationalvenue |
| 400 Freestyle | LCM | 5:01.75 | AAA+7.06s to AAAA·+19.36s to Sectionals | 2026-08-01 | 2026 CZ 14 & U Championship Meet - INfast pool |
| 50 Backstroke | LCM | 40.09 | BB+1.60s to A·+8.60s to Sectionals | 2021-06-18 | Holtrey Summer Classic |
| 100 Backstroke | LCM | 1:25.12 | BB+0.33s to A·+14.63s to Sectionals | 2024-07-28 | 2024 LE Age Group and Senior LC Championshipsvenue |
| 50 Breaststroke | LCM | 40.93 | A+0.04s to AA·+5.34s to Sectionals | 2026-08-02 | 2026 CZ 14 & U Championship Meet - INfast pool |
| 100 Breaststroke | LCM | 1:27.90 | AA+2.01s to AAA·+7.91s to Sectionals | 2026-08-01 | 2026 CZ 14 & U Championship Meet - INfast pool |
| 200 Breaststroke | LCM | 3:06.60 | AA+0.21s to AAA·+13.81s to Sectionals | 2026-07-30 | 2026 CZ 14 & U Championship Meet - INfast pool |
| 50 Butterfly | LCM | 42.70 | +0.91s to B·+12.41s to Sectionals | 2024-07-26 | 2024 LE Age Group and Senior LC Championshipsvenue |
| 100 Butterfly | LCM | 1:34.84 | B+4.25s to BB·+26.75s to Sectionals | 2024-06-15 | Holtrey Summer Classicvenue |
| 200 Individual Medley | LCM | 2:41.16 | AAA+3.07s to AAAA·+9.87s to Sectionals | 2026-08-02 | 2026 CZ 14 & U Championship Meet - INfast pool |
| 400 Individual Medley | LCM | 5:33.55 | AAAA·+9.16s to Sectionals | 2026-07-31 | 2026 CZ 14 & U Championship Meet - INfast pool |
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 | 28.28 | flat | 200 Free Relay | 2026-03-13 | 2026 OH SC Junior Championships |
| 100 Freestyle | SCY | 1:01.54 | flat | 400 Free Relay | 2026-03-15 | 2026 OH SC Junior Championships |
| 50 Butterfly | SCY | 30.22 | flying | 200 Medley Relay (leg 3) | 2026-03-14 | 2026 OH SC Junior Championships |
| 100 Butterfly | SCY | 1:07.55 | flying | 400 Medley Relay (leg 3) | 2026-03-14 | 2026 OH SC Junior Championships |
| 50 Freestyle | LCM | 35.24 | flying | 200 Free Relay (leg 3) | 2024-08-09 | 2025 Central Zone 14 & Under Championship Mee |
| 50 Breaststroke | LCM | 45.28 | flying | 200 Medley Relay (leg 2) | 2024-08-10 | 2025 Central Zone 14 & Under Championship Mee |
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 · LCM
3720 points (5/5 events)
| Event | Time | Points |
|---|---|---|
| 400 FR LCM | 5:01.75 | 931 |
| 100 BK LCM | 1:25.12 | 627 |
| 100 BR LCM | 1:27.90 | 805 |
| 100 FL LCM | 1:34.84 | 415 |
| 200 IM LCM | 2:41.16 | 942 |
IMR 11-12 · SCY
3526 points (5/5 events)
| Event | Time | Points |
|---|---|---|
| 200 FR SCY | 2:23.82 | 608 |
| 50 BK SCY | 34.34 | 607 |
| 50 BR SCY | 35.68 | 790 |
| 50 FL SCY | 31.41 | 685 |
| 100 IM SCY | 1:07.82 | 836 |
Scored against AAAA motivational base times: ordering is exact, absolute points run ~25% above the official USA Swimming scale.
PR splits
100 Freestyle SCY 1:10.61
Front half 34.08s · back half 36.53s
200 Freestyle SCY 2:23.82
Front half 68.60s · back half 75.22s
500 Freestyle SCY 6:23.69
Front half 188.16s · back half 195.53s
1650 Freestyle SCY 19:30.59 split/total mismatch
100 Backstroke SCY 1:13.47
Front half 35.78s · back half 37.69s
200 Backstroke SCY 2:24.87
Front half 70.50s · back half 74.37s
100 Breaststroke SCY 1:16.13
Front half 35.68s · back half 40.45s
200 Breaststroke SCY 2:42.02
Front half 77.54s · back half 84.48s
100 Butterfly SCY 1:18.72
Front half 36.77s · back half 41.95s
100 Individual Medley SCY 1:07.82
Front half 31.84s · back half 35.98s
200 Individual Medley SCY 2:25.03
Front half 68.65s · back half 76.38s
400 Individual Medley SCY 5:00.81
Front half 145.05s · back half 155.76s
100 Freestyle LCM 1:16.73
Front half 36.27s · back half 40.46s
200 Freestyle LCM 2:46.15
Front half 79.97s · back half 86.18s
400 Freestyle LCM 5:01.75
Front half 150.61s · back half 151.14s
100 Backstroke LCM 1:25.12
Front half 40.57s · back half 44.55s
100 Breaststroke LCM 1:27.90
Front half 40.79s · back half 47.11s
200 Breaststroke LCM 3:06.60
Front half 89.48s · back half 97.12s
100 Butterfly LCM 1:34.84
Front half 42.39s · back half 52.45s
200 Individual Medley LCM 2:41.16
Front half 77.14s · back half 84.02s
400 Individual Medley LCM 5:33.55
Front half 163.44s · back half 170.11s
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.