swimMckenzie Osterbrock
Personal records
| Event | Course | Best | Cut | Date | Meet |
|---|---|---|---|---|---|
| 50 Freestyle | SCY | 32.36 | BB+1.87s to A | 2025-10-17 | 24th Annual Chattahoochee Gold Invitational venue |
| 100 Freestyle | SCY | 1:15.08 | B+2.89s to BB | 2025-10-18 | 24th Annual Chattahoochee Gold Invitational venue |
| 200 Freestyle | SCY | 2:42.61 | B+5.52s to BB | 2025-10-19 | 24th Annual Chattahoochee Gold Invitational venue |
| 500 Freestyle | SCY | 7:42.90 | +8.91s to B | 2025-03-14 | 2025 Northwestern Divisional Championship |
| 50 Backstroke | SCY | 35.85 | BB+1.06s to A | 2025-10-18 | 24th Annual Chattahoochee Gold Invitational venue |
| 100 Backstroke | SCY | 1:18.14 | BB+1.75s to A | 2025-10-19 | 24th Annual Chattahoochee Gold Invitational venue |
| 50 Breaststroke | SCY | 44.69 | B+2.40s to BB | 2025-10-19 | 24th Annual Chattahoochee Gold Invitational venue |
| 100 Breaststroke | SCY | 1:56.90 | +16.61s to B | 2024-10-19 | 23rd Annual Chattahoochee Gold Invitational venue |
| 50 Butterfly | SCY | 49.12 | +10.23s to B | 2024-10-05 | Gold Kickoff slow pool |
| 100 Butterfly | SCY | 1:54.67 | +23.88s to B | 2025-03-14 | 2025 Northwestern Divisional Championship |
| 100 Individual Medley | SCY | 1:26.21 | B+3.92s to BB | 2025-10-18 | 24th Annual Chattahoochee Gold Invitational venue |
| 200 Individual Medley | SCY | 3:28.10 | +15.31s to B | 2025-01-31 | 10th Annual Famous Last Words |
| 400 Individual Medley | SCY | 6:29.18 | B+6.49s to BB | 2025-10-17 | 24th Annual Chattahoochee Gold Invitational venue |
| 50 Freestyle | LCM | 43.94 | +3.55s to B | 2024-07-19 | 2024 GA AG LC Championship July 18-21 2024 venue |
| 100 Freestyle | LCM | 1:33.02 | +3.83s to B | 2025-01-01 | Gold |
| 200 Freestyle | LCM | 3:12.76 | B+13.57s to BB | 2025-01-01 | Gold |
| 400 Freestyle | LCM | 6:45.26 | B+25.77s to BB | 2025-01-01 | Gold |
| 50 Backstroke | LCM | 44.72 | B+1.23s to BB | 2024-07-21 | 2024 GA AG LC Championship July 18-21 2024 venue |
| 100 Backstroke | LCM | 1:37.87 | B+0.38s to BB | 2025-01-01 | Gold |
| 50 Breaststroke | LCM | 1:01.74 | +9.45s to B | 2024-07-19 | 2024 GA AG LC Championship July 18-21 2024 venue |
| 50 Butterfly | LCM | 54.23 | +10.64s to B | 2025-01-01 | Gold |
| 100 Butterfly | LCM | 2:03.32 | +19.93s to B | 2025-01-01 | SA- Betsy Dunbar |
Cuts are USA Swimming single-age motivational standards (B → AAAA) at age 11.
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.
IMX / IMR
IMX 11-12 · SCY
1544 points (5/5 events)
| Event | Time | Points |
|---|---|---|
| 500 FR SCY | 7:42.90 | 354 |
| 100 BK SCY | 1:18.14 | 516 |
| 100 BR SCY | 1:56.90 | 228 |
| 100 FL SCY | 1:54.67 | 156 |
| 200 IM SCY | 3:28.10 | 290 |
IMR 11-12 · SCY
1943 points (5/5 events)
| Event | Time | Points |
|---|---|---|
| 200 FR SCY | 2:42.61 | 421 |
| 50 BK SCY | 35.85 | 534 |
| 50 BR SCY | 44.69 | 402 |
| 50 FL SCY | 49.12 | 179 |
| 100 IM SCY | 1:26.21 | 407 |
Scored against AAAA motivational base times: ordering is exact, absolute points run ~25% above the official USA Swimming scale.
PR splits
100 Freestyle SCY 1:15.08
Front half 34.59s · back half 40.49s
200 Freestyle SCY 2:42.61
Front half 81.27s · back half 81.34s
100 Backstroke SCY 1:18.14
Front half 37.17s · back half 40.97s
100 Breaststroke SCY 1:56.90
Front half 54.81s · back half 62.09s
100 Individual Medley SCY 1:26.21
Front half 40.67s · back half 45.54s
200 Individual Medley SCY 3:28.10 split/total mismatch
400 Individual Medley SCY 6:29.18
Front half 195.98s · back half 193.20s
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.