swimNathan Sfirnaciuc
Personal records
| Event | Course | Best | Cut | Date | Meet |
|---|---|---|---|---|---|
| 50 Freestyle | SCY | 22.84 | A+0.15s to AA·+0.25s to Sectionals | 2025-07-20 | 2025 ISI Summer LWSA Regionalvenue |
| 100 Freestyle | SCY | 50.16 | A+0.27s to AA·+1.17s to Sectionals | 2024-11-23 | 2024 Speedo Grand Chalengevenue |
| 200 Freestyle | SCY | 1:49.08 | AA+3.69s to AAA·+1.59s to Sectionals | 2025-07-20 | 2025 ISI Summer LWSA Regionalvenue |
| 500 Freestyle | SCY | 5:03.58 | A+3.89s to AA·+10.69s to Sectionals | 2024-11-23 | 2024 Speedo Grand Chalengevenue |
| 1000 Freestyle | SCY | 10:51.34 | A+21.75s to AA·+42.85s to Sectionals | 2024-11-22 | 2024 Speedo Grand Chalengevenue |
| 50 Butterfly | SCY | 25.24 | AA+0.95s to AAA·+1.55s to Sectionals | 2025-07-20 | 2025 ISI Summer LWSA Regionalvenue |
| 50 Freestyle | LCM | 26.16 | AA+1.07s to AAA·+0.17s to Sectionals | 2025-06-22 | 2025 SE Richard Quick Invitationalvenue |
| 100 Freestyle | LCM | 58.78 | A+1.09s to AA·+2.19s to Sectionals | 2025-06-22 | 2025 SE Richard Quick Invitationalvenue |
| 200 Freestyle | LCM | 2:07.39 | A+1.20s to AA·+3.90s to Sectionals | 2025-06-20 | 2025 SE Richard Quick Invitationalvenue |
| 400 Freestyle | LCM | 4:34.06 | A+5.07s to AA·+11.87s to Sectionals | 2024-06-07 | 2024 Synergy Dryland Summer Sizzlervenue |
| 800 Freestyle | LCM | 9:48.97 | BB+1.28s to A·+38.18s to Sectionals | 2024-06-08 | 2024 Synergy Dryland Summer Sizzlervenue |
| 50 Backstroke | LCM | 32.03 | BB+0.04s to A·+3.34s to Sectionals | 2025-06-21 | 2025 SE Richard Quick Invitationalvenue |
| 100 Backstroke | LCM | 1:12.04 | BB+5.05s to A·+7.65s to Sectionals | 2024-05-18 | 2024 MAC LC Midwest Invitationalvenue |
| 50 Butterfly | LCM | 28.84 | A+0.25s to AA·+1.45s to Sectionals | 2025-06-20 | 2025 SE Richard Quick Invitationalvenue |
| 100 Butterfly | LCM | 1:06.04 | BB+1.75s to A·+4.55s to Sectionals | 2024-06-06 | 2024 Synergy Dryland Summer Sizzlervenue |
| 200 Individual Medley | LCM | 2:38.54 | BB+10.45s to A·+19.15s to Sectionals | 2024-05-18 | 2024 MAC LC Midwest Invitationalvenue |
Cuts are USA Swimming single-age motivational standards (B → AAAA) at age 18.
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.
Fastest relay legs
| Leg | Course | Time | Start | Relay | Date | Meet |
|---|---|---|---|---|---|---|
| 50 Freestyle | SCY | 22.15 | flying | 200 Medley Relay (leg 4) | 2025-07-19 | 2025 ISI Summer LWSA Regional |
| 50 Freestyle | SCY | 22.32 | flying | 200 Free Relay (leg 2) | 2025-07-20 | 2025 ISI Summer LWSA Regional |
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 17-18 · LCM
1251 points (2/6 events — incomplete)
| Event | Time | Points |
|---|---|---|
| 400 FR LCM | 4:34.06 | 713 |
| 200 IM LCM | 2:38.54 | 538 |
| 200 BK LCM | — | 0 |
| 200 BR LCM | — | 0 |
| 200 FL LCM | — | 0 |
| 400 IM LCM | — | 0 |
IMR 17-18 · LCM
2403 points (4/5 events — incomplete)
| Event | Time | Points |
|---|---|---|
| 200 FR LCM | 2:07.39 | 729 |
| 100 BK LCM | 1:12.04 | 527 |
| 100 FL LCM | 1:06.04 | 609 |
| 200 IM LCM | 2:38.54 | 538 |
| 100 BR LCM | — | 0 |
Scored against AAAA motivational base times: ordering is exact, absolute points run ~25% above the official USA Swimming scale.
PR splits
100 Freestyle SCY 50.16 RT 0.77s
Front half 23.75s · back half 26.41s
200 Freestyle SCY 1:49.08
Front half 52.68s · back half 56.40s
500 Freestyle SCY 5:03.58 RT 0.74s
Front half 147.49s · back half 156.09s
1000 Freestyle SCY 10:51.34
Front half 291.18s · back half 360.16s
200 Freestyle LCM 2:07.39
Front half 3.41s · back half 123.98s
400 Freestyle LCM 4:34.06
Front half 132.24s · back half 141.82s
800 Freestyle LCM 9:48.97
Front half 294.04s · back half 294.93s
100 Backstroke LCM 1:12.04
Front half 34.85s · back half 37.19s
200 Individual Medley LCM 2:38.54
Front half 72.02s · back half 86.52s
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.