Colton Rosinski

Mage 17MNSEMS

127 plausible swims · 29 meets · 2024-03-01 → 2026-07-26

Personal records

EventCourseBest CutDateMeet
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

LegCourseTime StartRelayDateMeet
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)

EventTime 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)

EventTime 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

24.63
27.62

Front half 24.63s · back half 27.62s

200 Freestyle SCY 2:04.04

28.77
32.15
32.98
30.14

Front half 60.92s · back half 63.12s

500 Freestyle SCY 5:24.40

29.29
32.93
33.63
32.88
33.18
32.42
32.56
32.96
32.91
31.64

Front half 161.91s · back half 162.49s

100 Backstroke SCY 56.80 RT 0.60s

27.51
29.29

Front half 27.51s · back half 29.29s

200 Backstroke SCY 2:01.13 RT 0.57s

28.12
30.57
31.22
31.22

Front half 58.69s · back half 62.44s

200 Breaststroke SCY 2:31.10

33.72
38.55
39.48
39.35

Front half 72.27s · back half 78.83s

100 Butterfly SCY 1:03.32

28.71
34.61

Front half 28.71s · back half 34.61s

200 Butterfly SCY 2:15.35

30.23
35.34
36.30
33.48

Front half 65.57s · back half 69.78s

100 Individual Medley SCY 1:02.83

28.88
33.95

Front half 28.88s · back half 33.95s

200 Individual Medley SCY 2:12.30

28.28
33.88
38.27
31.87

Front half 62.16s · back half 70.14s

400 Individual Medley SCY 4:45.92

30.52
36.72
35.45
35.81
41.59
41.12
33.83
30.88

Front half 138.50s · back half 147.42s

100 Freestyle LCM 58.36

28.13
30.23

Front half 28.13s · back half 30.23s

200 Freestyle LCM 2:18.52

31.51
35.12
37.07
34.82

Front half 66.63s · back half 71.89s

1500 Freestyle LCM 20:42.84

36.55
42.34
41.86
41.84
41.25
42.21
41.99
42.63
41.23
42.23
41.98
42.32
41.62
42.34
41.13
42.74
41.46
42.22
41.90
41.84
41.04
41.70
41.04
40.44
40.69
40.99
41.41
41.24
37.13
43.48

Front half 623.52s · back half 619.32s

100 Backstroke LCM 1:05.50

31.92
33.58

Front half 31.92s · back half 33.58s

200 Backstroke LCM 2:24.75

34.16
37.06
37.39
36.14

Front half 71.22s · back half 73.53s

100 Breaststroke LCM 1:15.99

34.42
41.57

Front half 34.42s · back half 41.57s

200 Breaststroke LCM 3:03.34

42.15
48.28
47.27
45.64

Front half 90.43s · back half 92.91s

100 Butterfly LCM 1:10.34

32.87
37.47

Front half 32.87s · back half 37.47s

200 Individual Medley LCM 2:34.58

33.69
40.15
47.89
32.85

Front half 73.84s · back half 80.74s

400 Individual Medley LCM 5:28.55

33.05
40.55
43.73
41.68
47.81
48.87
37.85
35.01

Front half 159.01s · back half 169.54s

Reaction time

fastest 0.57s average 0.602s slowest 0.66s 6 electronic starts

Start reaction over time faster starts higher

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
DateEventCourse TimeAge RoundMeet

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.

50 Freestyle SCY 22.77 8 swims
100 Freestyle SCY 52.25 7 swims
200 Freestyle SCY 2:04.04 3 swims
500 Freestyle SCY 5:24.40 1 swim
50 Backstroke SCY 26.41 2 swims
100 Backstroke SCY 56.80 8 swims
200 Backstroke SCY 2:01.13 6 swims
200 Breaststroke SCY 2:31.10 1 swim
100 Butterfly SCY 1:03.32 3 swims
200 Butterfly SCY 2:15.35 2 swims
100 Individual Medley SCY 1:02.83 3 swims
200 Individual Medley SCY 2:12.30 3 swims
400 Individual Medley SCY 4:45.92 2 swims
50 Freestyle LCM 26.29 13 swims
100 Freestyle LCM 58.36 10 swims
200 Freestyle LCM 2:18.52 2 swims
800 Freestyle LCM 11:06.26 1 swim
1500 Freestyle LCM 20:42.84 1 swim
50 Backstroke LCM 30.40 5 swims
100 Backstroke LCM 1:05.50 11 swims
200 Backstroke LCM 2:24.75 9 swims
50 Breaststroke LCM 32.63 6 swims
100 Breaststroke LCM 1:15.99 7 swims
200 Breaststroke LCM 3:03.34 2 swims
50 Butterfly LCM 31.23 2 swims
100 Butterfly LCM 1:10.34 4 swims
200 Individual Medley LCM 2:34.58 3 swims
400 Individual Medley LCM 5:28.55 2 swims