Colton Rosinski
Personal records
| Event | Course | Best | Cut | Date | Meet |
|---|---|---|---|---|---|
| 50 Freestyle | SCY | 22.77 | AA+0.68s to AAA·+0.18s to Sectionals | 2026-03-14 | 2026 MN AQJT Senior SC State Championshipvenue |
| 100 Freestyle | SCY | 52.25 | A+1.86s to AA·+3.26s to Sectionals | 2025-11-08 | 2025 MN WOLF HOWL AT THE MOON INVITEvenue |
| 200 Freestyle | SCY | 2:04.04 | BB+8.05s to A·+16.55s to Sectionals | 2024-03-02 | 2024 MN STRM Minnesota Regional Championshipvenue |
| 500 Freestyle | SCY | 5:24.40 | BB+9.51s to A·+31.51s to Sectionals | 2025-11-23 | 2025 MN Hast Nov IMXvenue |
| 50 Backstroke | SCY | 26.41 | A+0.72s to AA·+1.92s to Sectionals | 2026-03-13 | 2026 MN AQJT Senior SC State Championshipvenue |
| 100 Backstroke | SCY | 56.80 | A+1.91s to AA·+0.71s to Sectionals | 2026-03-14 | 2026 MN AQJT Senior SC State Championshipvenue |
| 200 Backstroke | SCY | 2:01.13 | A+1.14s to AA·Sectionals ✓+8.34s to Futures | 2026-03-14 | 2026 MN AQJT Senior SC State Championshipvenue |
| 200 Breaststroke | SCY | 2:31.10 | BB+10.31s to A·+12.51s to Sectionals | 2025-11-23 | 2025 MN Hast Nov IMXvenue |
| 100 Butterfly | SCY | 1:03.32 | B+1.93s to BB·+9.33s to Sectionals | 2025-10-26 | 2025 MN SEMS Sharktober Invitevenue |
| 200 Butterfly | SCY | 2:15.35 | BB+7.86s to A·+12.56s to Sectionals | 2025-11-23 | 2025 MN Hast Nov IMXvenue |
| 100 Individual Medley | SCY | 1:02.83 | 2025-06-12 | 2025 MN SEMS June 12 Full Team Intrasquadslow pool | |
| 200 Individual Medley | SCY | 2:12.30 | BB+4.11s to A·+11.31s to Sectionals | 2025-06-12 | 2025 MN SEMS June 12 Full Team Intrasquadslow pool |
| 400 Individual Medley | SCY | 4:45.92 | BB+9.93s to A·+21.93s to Sectionals | 2025-11-22 | 2025 MN Hast Nov IMXvenue |
| 50 Freestyle | LCM | 26.29 | AA+0.80s to AAA·+0.30s to Sectionals | 2025-07-20 | 2025 MN STRM Minnesota Regional Championshipvenue |
| 100 Freestyle | LCM | 58.36 | A+0.27s to AA·+1.77s to Sectionals | 2025-07-18 | 2025 MN STRM Minnesota Regional Championshipvenue |
| 200 Freestyle | LCM | 2:18.52 | BB+5.23s to A·+15.03s to Sectionals | 2026-05-03 | 2026 MN SEMS LC Invitevenue |
| 800 Freestyle | LCM | 11:06.26 | B+26.27s to BB·+115.47s to Sectionals | 2025-06-22 | 2025 MN MAN Red White & Blue Invitevenue |
| 1500 Freestyle | LCM | 20:42.84 | B+14.85s to BB·+182.85s to Sectionals | 2025-06-22 | 2025 MN MAN Red White & Blue Invitevenue |
| 50 Backstroke | LCM | 30.40 | AA+1.01s to AAA·+1.71s to Sectionals | 2026-07-24 | 2026 MN STRM Senior LC State Championshipvenue |
| 100 Backstroke | LCM | 1:05.50 | A+0.81s to AA·+1.11s to Sectionals | 2024-07-13 | 2024 MN MTKA Minnesota Regional Championshipvenue |
| 200 Backstroke | LCM | 2:24.75 | A+3.76s to AA·+4.96s to Sectionals | 2025-07-20 | 2025 MN STRM Minnesota Regional Championshipvenue |
| 50 Breaststroke | LCM | 32.63 | AA+0.54s to AAA·+0.64s to Sectionals | 2026-07-26 | 2026 MN STRM Senior LC State Championshipvenue |
| 100 Breaststroke | LCM | 1:15.99 | BB+0.50s to A·+3.20s to Sectionals | 2026-07-17 | 2026 MN STRM Minnesota Regional Championshipvenue |
| 200 Breaststroke | LCM | 3:03.34 | B+4.85s to BB·+23.55s to Sectionals | 2025-06-22 | 2025 MN MAN Red White & Blue Invitevenue |
| 50 Butterfly | LCM | 31.23 | BB+1.04s to A·+3.84s to Sectionals | 2025-05-18 | 2025 MN STRM Spring Startupvenue |
| 100 Butterfly | LCM | 1:10.34 | BB+5.15s to A·+8.85s to Sectionals | 2025-05-31 | 2025 MN WOLF HUFF N PUFF INVITEvenue |
| 200 Individual Medley | LCM | 2:34.58 | BB+5.99s to A·+15.19s to Sectionals | 2026-05-08 | 2026 MN STRM Spring Startupvenue |
| 400 Individual Medley | LCM | 5:28.55 | BB+9.56s to A·+26.66s to Sectionals | 2026-05-29 | 2026 MN WOLF HUFF N PUFF INVITEvenue |
Cuts are USA Swimming single-age motivational standards (B → AAAA) at age 17.
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 | 22.57 | flat | 200 Free Relay | 2026-03-13 | 2026 MN AQJT Senior SC State Championship |
| 50 Freestyle | SCY | 22.09 | flying | 200 Free Relay (leg 4) | 2024-06-13 | 2024 MN SEMS June Full Team Intrasquad |
| 50 Freestyle | SCY | 23.35 | flying | 200 Medley Relay (leg 4) | 2024-10-12 | 2024 MN FOXJ Fall Invitational |
| 100 Freestyle | SCY | 48.56 | flying | 400 Free Relay (leg 4) | 2026-03-14 | 2026 MN AQJT Senior SC State Championship |
| 50 Backstroke | SCY | 27.39 | flat | 200 Medley Relay | 2025-11-22 | 2025 MN Hast Nov IMX |
| 50 Butterfly | SCY | 27.13 | flying | 200 Medley Relay (leg 3) | 2024-10-27 | 2024 MN WOLF HOWL AT THE MOON INVITE - PART 1 |
| 50 Freestyle | LCM | 26.11 | flat | 200 Free Relay | 2026-07-24 | 2026 MN STRM Senior LC State Championship |
| 50 Freestyle | LCM | 25.72 | flying | 200 Medley Relay (leg 4) | 2026-07-23 | 2026 MN STRM Senior LC State Championship |
| 50 Freestyle | LCM | 26.19 | flying | 200 Free Relay (leg 2) | 2025-07-20 | 2025 MN STRM Minnesota Regional Championship |
| 100 Freestyle | LCM | 58.08 | flying | 400 Free Relay (leg 2) | 2026-07-26 | 2026 MN STRM Senior LC State Championship |
| 50 Backstroke | LCM | 29.34 | flat | 200 Medley Relay | 2024-07-18 | 2024 MN RSC Minnesota LC State Championship |
| 100 Backstroke | LCM | 1:06.70 | flat | 400 Medley Relay | 2024-07-20 | 2024 MN RSC Minnesota LC State Championship |
| 50 Breaststroke | LCM | 34.14 | flying | 200 Medley Relay (leg 2) | 2024-07-13 | 2024 MN MTKA Minnesota Regional Championship |
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 · SCY
3513 points (6/6 events)
| Event | Time | Points |
|---|---|---|
| 500 FR SCY | 5:24.40 | 592 |
| 200 BK SCY | 2:01.13 | 706 |
| 200 BR SCY | 2:31.10 | 522 |
| 200 FL SCY | 2:15.35 | 533 |
| 200 IM SCY | 2:12.30 | 584 |
| 400 IM SCY | 4:45.92 | 576 |
IMR 17-18 · LCM
2981 points (5/5 events)
| Event | Time | Points |
|---|---|---|
| 200 FR LCM | 2:18.52 | 567 |
| 100 BK LCM | 1:05.50 | 701 |
| 100 BR LCM | 1:15.99 | 628 |
| 100 FL LCM | 1:10.34 | 504 |
| 200 IM LCM | 2:34.58 | 581 |
Scored against AAAA motivational base times: ordering is exact, absolute points run ~25% above the official USA Swimming scale.
PR splits
100 Freestyle SCY 52.25
Front half 24.63s · back half 27.62s
200 Freestyle SCY 2:04.04
Front half 60.92s · back half 63.12s
500 Freestyle SCY 5:24.40
Front half 161.91s · back half 162.49s
100 Backstroke SCY 56.80 RT 0.60s
Front half 27.51s · back half 29.29s
200 Backstroke SCY 2:01.13 RT 0.57s
Front half 58.69s · back half 62.44s
200 Breaststroke SCY 2:31.10
Front half 72.27s · back half 78.83s
100 Butterfly SCY 1:03.32
Front half 28.71s · back half 34.61s
200 Butterfly SCY 2:15.35
Front half 65.57s · back half 69.78s
100 Individual Medley SCY 1:02.83
Front half 28.88s · back half 33.95s
200 Individual Medley SCY 2:12.30
Front half 62.16s · back half 70.14s
400 Individual Medley SCY 4:45.92
Front half 138.50s · back half 147.42s
100 Freestyle LCM 58.36
Front half 28.13s · back half 30.23s
200 Freestyle LCM 2:18.52
Front half 66.63s · back half 71.89s
1500 Freestyle LCM 20:42.84
Front half 623.52s · back half 619.32s
100 Backstroke LCM 1:05.50
Front half 31.92s · back half 33.58s
200 Backstroke LCM 2:24.75
Front half 71.22s · back half 73.53s
100 Breaststroke LCM 1:15.99
Front half 34.42s · back half 41.57s
200 Breaststroke LCM 3:03.34
Front half 90.43s · back half 92.91s
100 Butterfly LCM 1:10.34
Front half 32.87s · back half 37.47s
200 Individual Medley LCM 2:34.58
Front half 73.84s · back half 80.74s
400 Individual Medley LCM 5:28.55
Front half 159.01s · back half 169.54s
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.