swimSebastian Kozlenko
Personal records
| Event | Course | Best | Cut | Date | Meet |
|---|---|---|---|---|---|
| 25 Freestyle | SCY | 21.15 | 2023-01-13 | CT SYS Stingray Winter Classicvenue | |
| 50 Freestyle | SCY | 30.94 | BB+0.45s to A·+6.15s to Sectionals | 2026-10-23 | RYWC Candlewood Lake Spooktacularvenue |
| 100 Freestyle | SCY | 1:22.65 | +4.96s to B·+29.56s to Sectionals | 2025-03-01 | 030125wyw results rev030425 2 |
| 200 Freestyle | SCY | 3:01.80 | +12.71s to B·+66.81s to Sectionals | 2025-03-01 | 030125wyw results rev030425 2 |
| 500 Freestyle | SCY | 6:48.29 | BB+19.10s to A·+99.50s to Sectionals | 2026-10-23 | RYWC Candlewood Lake Spooktacularvenue |
| 25 Backstroke | SCY | 24.72 | 2023-01-13 | CT SYS Stingray Winter Classicvenue | |
| 50 Backstroke | SCY | 38.63 | B+0.94s to BB·+12.34s to Futures | 2026-10-23 | RYWC Candlewood Lake Spooktacularvenue |
| 100 Backstroke | SCY | 1:25.49 | B+1.90s to BB·+26.20s to Sectionals | 2026-02-27 | 022726wyw results |
| 25 Breaststroke | SCY | 32.00 | 2023-01-13 | CT SYS Stingray Winter Classicvenue | |
| 50 Breaststroke | SCY | 44.88 | B+2.59s to BB·+15.09s to Futures | 2025-12-12 | 2025 CT BULL Hutch Invite |
| 100 Breaststroke | SCY | 1:37.62 | B+4.73s to BB·+29.43s to Sectionals | 2025-12-12 | 2025 CT BULL Hutch Invite |
| 200 Breaststroke | SCY | 3:32.18 | B+12.19s to BB·+62.79s to Sectionals | 2026-01-16 | 011626sys results |
| 25 Butterfly | SCY | 21.69 | 2025-02-23 | 022325hhac resultsrev022625 | |
| 50 Butterfly | SCY | 39.55 | +0.66s to B·+13.86s to Futures | 2025-12-12 | 2025 CT BULL Hutch Invite |
| 100 Butterfly | SCY | 1:08.15 | AAA+2.76s to AAAA·+9.66s to Sectionals | 2025-03-01 | 030125wyw results rev030425 2 |
| 100 Individual Medley | SCY | 1:24.43 | B+2.14s to BB | 2026-02-27 | 022726wyw results |
| 200 Individual Medley | SCY | 3:02.40 | B+3.41s to BB·+51.71s to Sectionals | 2026-10-23 | RYWC Candlewood Lake Spooktacularvenue |
| 50 Freestyle | LCM | 36.74 | BB+1.95s to A·+8.45s to Sectionals | 2026-07-24 | CT GRIT Club Champsfast pool |
| 100 Freestyle | LCM | 1:30.91 | +1.72s to B·+30.22s to Sectionals | 2025-06-20 | CAC Destination Athlete Northeasvenue |
| 200 Freestyle | LCM | 3:19.07 | +6.08s to B·+68.18s to Sectionals | 2025-06-20 | CAC Destination Athlete Northeasvenue |
| 400 Freestyle | LCM | 6:28.93 | B+9.44s to BB·+111.24s to Sectionals | 2026-07-24 | CT GRIT Club Champsfast pool |
| 1000 Freestyle | LCM | 13:01.89 | 2026-06-27 | 2026 CT Open Water Championship | |
| 50 Backstroke | LCM | 49.71 | +2.92s to B·+18.82s to Futures | 2025-05-02 | CT RYWC May Crazy Meet |
| 100 Backstroke | LCM | 6:25.12 | +279.33s to B·+317.23s to Sectionals | 2026-05-15 | RYWC Mako Meetvenue |
| 200 Backstroke | LCM | 2:59.02 | AA+5.73s to AAA·+32.83s to Sectionals | 2026-07-24 | CT GRIT Club Champsfast pool |
| 50 Breaststroke | LCM | 48.09 | BB+3.20s to A·+13.30s to Futures | 2026-05-01 | 2026 CT RYWC Mako May Crazyvenue |
| 100 Breaststroke | LCM | 1:35.87 | A+1.38s to AA·+17.98s to Sectionals | 2025-05-02 | CT RYWC May Crazy Meet |
| 50 Butterfly | LCM | 38.32 | BB+0.93s to A·+8.83s to Futures | 2026-05-28 | WYW Trials/Finals Meetvenue |
| 200 Individual Medley | LCM | 3:36.62 | B+11.73s to BB·+68.23s to Sectionals | 2026-05-01 | 2026 CT RYWC Mako May Crazyvenue |
Cuts are USA Swimming single-age motivational standards (B → AAAA) at age 11.
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.
IMX / IMR
IMX 11-12 · SCY
2479 points (5/5 events)
| Event | Time | Points |
|---|---|---|
| 500 FR SCY | 6:48.29 | 516 |
| 100 BK SCY | 1:25.49 | 394 |
| 100 BR SCY | 1:37.62 | 392 |
| 100 FL SCY | 1:08.15 | 745 |
| 200 IM SCY | 3:02.40 | 432 |
IMR 11-12 · LCM
2060 points (5/5 events)
| Event | Time | Points |
|---|---|---|
| 200 FR LCM | 3:19.07 | 346 |
| 50 BK LCM | 49.71 | 308 |
| 50 BR LCM | 48.09 | 470 |
| 50 FL LCM | 38.32 | 549 |
| 200 IM LCM | 3:36.62 | 387 |
Scored against AAAA motivational base times: ordering is exact, absolute points run ~25% above the official USA Swimming scale.
PR splits
25 Freestyle SCY 21.15 split/total mismatch
Front half 1018.04s · back half -996.89s
100 Freestyle SCY 1:22.65 split/total mismatch
Front half 39.39s · back half 43.26s
100 Breaststroke SCY 1:37.62 split/total mismatch
200 Breaststroke SCY 3:32.18 split/total mismatch
100 Butterfly SCY 1:08.15 split/total mismatch
200 Individual Medley SCY 3:02.40 split/total mismatch
400 Freestyle LCM 6:28.93 split/total mismatch
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.