swimMackenzie Sederland
Personal records
| Event | Course | Best | Cut | Date | Meet |
|---|---|---|---|---|---|
| 25 Freestyle | SCY | 16.35 | 2022-11-05 | Kelly Kinney Memorial -Splash Out Cancer 2022 | |
| 50 Freestyle | SCY | 32.94 | B+1.25s to BB·+6.45s to Sectionals | 2023-10-07 | CCS Age Group and Open Swim Meet venue |
| 100 Freestyle | SCY | 1:10.61 | B+1.22s to BB·+14.72s to Sectionals | 2024-05-05 | LESD May Madness slow pool |
| 200 Freestyle | SCY | 2:23.82 | BB+3.83s to A·+25.23s to Sectionals | 2021-11-21 | The Mark J. Braun Fall Classic 2022 venue |
| 500 Freestyle | SCY | 6:23.69 | BB+8.80s to A·+65.70s to Sectionals | 2024-12-06 | 2024 TYR NCAT Winter Invite |
| 1650 Freestyle | SCY | 19:30.59 | AAA+40.00s to AAAA·+74.10s to Sectionals | 2025-12-14 | 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 2022 venue |
| 100 Backstroke | SCY | 1:13.47 | BB+0.48s to A·+9.48s to Sectionals | 2021-11-21 | The Mark J. Braun Fall Classic 2022 venue |
| 200 Backstroke | SCY | 2:24.87 | AA+3.38s to AAA·+10.78s to Sectionals | 2026-03-15 | 2026 OH SC Junior Championships fast pool |
| 25 Breaststroke | SCY | 22.44 | 2022-11-05 | Kelly Kinney Memorial -Splash Out Cancer 2022 | |
| 50 Breaststroke | SCY | 35.68 | AA+1.09s to AAA·+4.99s to Sectionals | 2026-03-15 | 2026 OH SC Junior Championships fast pool |
| 100 Breaststroke | SCY | 1:16.13 | AA+1.04s to AAA·+4.34s to Sectionals | 2026-03-13 | 2026 OH SC Junior Championships fast pool |
| 200 Breaststroke | SCY | 2:42.02 | AA+0.23s to AAA·+8.53s to Sectionals | 2026-03-14 | 2026 OH SC Junior Championships fast pool |
| 50 Butterfly | SCY | 31.41 | A+1.02s to AA·+4.72s to Sectionals | 2026-03-15 | 2026 OH SC Junior Championships fast pool |
| 100 Butterfly | SCY | 1:18.72 | BB+6.43s to A·+15.83s to Sectionals | 2021-11-21 | The Mark J. Braun Fall Classic 2022 venue |
| 100 Individual Medley | SCY | 1:07.82 | AA+0.83s to AAA | 2026-03-15 | 2026 OH SC Junior Championships fast pool |
| 200 Individual Medley | SCY | 2:25.03 | AA+0.44s to AAA·+10.74s to Sectionals | 2026-03-13 | 2026 OH SC Junior Championships fast pool |
| 400 Individual Medley | SCY | 5:00.81 | AAA+6.52s to AAAA·+13.42s to Sectionals | 2026-03-12 | 2026 OH SC Junior Championships fast pool |
| 50 Freestyle | LCM | 35.45 | BB+2.06s to A·+5.76s to Sectionals | 2021-06-18 | Holtrey Summer Classic |
| 100 Freestyle | LCM | 1:16.73 | BB+3.24s to A·+14.04s to Sectionals | 2024-07-25 | 2024 LE Age Group and Senior LC Championships |
| 200 Freestyle | LCM | 2:46.15 | BB+6.06s to A·+31.46s to Sectionals | 2024-05-17 | 2024 Robert F. Busbey Invitational |
| 400 Freestyle | LCM | 5:55.27 | BB+18.48s to A·+70.28s to Sectionals | 2024-05-17 | 2024 Robert F. Busbey Invitational |
| 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·+11.83s to Sectionals | 2024-07-25 | 2024 LE Age Group and Senior LC Championships |
| 50 Breaststroke | LCM | 45.92 | BB+3.23s to A·+10.33s to Sectionals | 2024-07-25 | 2024 LE Age Group and Senior LC Championships |
| 100 Breaststroke | LCM | 1:40.81 | BB+6.82s to A·+18.12s to Sectionals | 2021-06-18 | Holtrey Summer Classic |
| 50 Butterfly | LCM | 42.70 | +0.91s to B·+12.41s to Sectionals | 2024-07-25 | 2024 LE Age Group and Senior LC Championships |
| 100 Butterfly | LCM | 1:34.84 | B+4.25s to BB·+25.15s to Sectionals | 2021-06-18 | Holtrey Summer Classic |
| 200 Individual Medley | LCM | 3:08.11 | BB+7.42s to A·+34.62s to Sectionals | 2024-07-25 | 2024 LE Age Group and Senior LC Championships |
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 |
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
3413 points (5/5 events)
| Event | Time | Points |
|---|---|---|
| 500 FR SCY | 6:23.69 | 622 |
| 100 BK SCY | 1:13.47 | 621 |
| 100 BR SCY | 1:16.13 | 828 |
| 100 FL SCY | 1:18.72 | 483 |
| 200 IM SCY | 2:25.03 | 859 |
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
1650 Freestyle SCY 19:30.59
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 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
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.