swimLeif Osborne
Personal records
| Event | Course | Best | Cut | Date | Meet |
|---|---|---|---|---|---|
| 25 Freestyle | SCY | 20.00 | 2025-09-20 | 2025 SI PS Freestyle Festival Satvenue | |
| 50 Freestyle | SCY | 39.68 | +16.49s to Sectionals | 2025-12-06 | SI 2025 RSD All Ages WAG Maxvenue |
| 100 Freestyle | SCY | 1:29.56 | +38.57s to Sectionals | 2025-12-07 | SI 2025 RSD All Ages WAG Maxvenue |
| 200 Freestyle | SCY | 2:55.94 | +64.15s to Sectionals | 2026-07-12 | 2026 SI JBST All Ages Last Chance Meetvenue |
| 25 Backstroke | SCY | 22.55 | 2025-10-18 | 2025 SI BAY 10U Mini Meet | |
| 50 Backstroke | SCY | 45.25 | +21.56s to Futures | 2026-07-12 | 2026 SI JBST All Ages Last Chance Meetvenue |
| 100 Backstroke | SCY | 1:40.63 | +45.14s to Sectionals | 2025-12-06 | SI 2025 RSD All Ages WAG Maxvenue |
| 25 Breaststroke | SCY | 23.84 | 2025-10-18 | 2025 SI BAY 10U Mini Meet | |
| 50 Breaststroke | SCY | 53.84 | +27.55s to Futures | 2025-12-07 | SI 2025 RSD All Ages WAG Maxvenue |
| 100 Breaststroke | SCY | 1:50.02 | +46.83s to Sectionals | 2026-07-12 | 2026 SI JBST All Ages Last Chance Meetvenue |
| 25 Butterfly | SCY | 31.57 | 2025-01-25 | 2024 SI BAY 10U Mini Meetslow pool | |
| 50 Butterfly | SCY | 54.04 | +31.15s to Futures | 2025-12-06 | SI 2025 RSD All Ages WAG Maxvenue |
| 100 Butterfly | SCY | 1:23.07 | +27.88s to Sectionals | 2025-01-01 | FAST - CA |
| 100 Individual Medley | SCY | 1:47.13 | 2025-10-18 | 2025 SI BAY 10U Mini Meet | |
| 50 Freestyle | LCM | 43.93 | +16.94s to Sectionals | 2026-01-01 | FAST - CA |
| 200 Freestyle | LCM | 3:16.48 | +67.79s to Sectionals | 2026-07-23 | 2026 SI LC AGE GROUP CHAMPIONSHIPSvenue |
| 50 Backstroke | LCM | 51.35 | +23.46s to Futures | 2026-01-01 | FAST - CA |
| 100 Backstroke | LCM | 1:49.25 | +44.06s to Sectionals | 2026-01-01 | FAST - CA |
| 50 Breaststroke | LCM | 1:00.67 | +29.78s to Futures | 2026-06-07 | 2026 SI JBST SPLASH & DASH MAXslow pool |
| 100 Breaststroke | LCM | 1:59.51 | +45.81s to Sectionals | 2026-07-24 | 2026 SI LC AGE GROUP CHAMPIONSHIPSvenue |
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 | 39.01 | flying | 200 Free Relay (leg 4) | 2025-12-21 | 2025 SI Winter Age Group Championships |
| 50 Backstroke | SCY | 39.66 | flat | 200 Medley Relay | 2025-12-19 | 2025 SI Winter Age Group 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 10 & under · SCY
1709 points (4/5 events — incomplete)
| Event | Time | Points |
|---|---|---|
| 200 FR SCY | 2:55.94 | 428 |
| 100 BK SCY | 1:40.63 | 322 |
| 100 BR SCY | 1:50.02 | 367 |
| 100 FL SCY | 1:23.07 | 592 |
| 200 IM SCY | — | 0 |
IMR 10 & under · SCY
1439 points (5/5 events)
| Event | Time | Points |
|---|---|---|
| 100 FR SCY | 1:29.56 | 311 |
| 50 BK SCY | 45.25 | 360 |
| 50 BR SCY | 53.84 | 308 |
| 50 FL SCY | 54.04 | 184 |
| 100 IM SCY | 1:47.13 | 276 |
Scored against AAAA motivational base times: ordering is exact, absolute points run ~25% above the official USA Swimming scale.
PR splits
100 Freestyle SCY 1:29.56
Front half 42.39s · back half 47.17s
200 Freestyle SCY 2:55.94
Front half 83.59s · back half 92.35s
100 Backstroke SCY 1:40.63
Front half 48.96s · back half 51.67s
100 Breaststroke SCY 1:50.02 · 16.9 min after 200 Freestyle
Front half 53.56s · back half 56.46s
200 Freestyle LCM 3:16.48
Front half 93.46s · back half 103.02s
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.