swimstats

Kion Sonomura

Mage 12HIMTPCUTOTACUTAHUVA

449 plausible swims · 92 meets · 2020-10-12 → 2026-10-28

Personal records

EventCourseBest CutDateMeet
25 Freestyle SCY 26.02 2020-12-11 2020 UT OA Thanksgiving Turkey Meatvenue
50 Freestyle SCY 25.67 AAA+1.08s to AAAA·+2.48s to Sectionals 2026-03-07 2026 SC UTAGS Championshipsvenue
100 Freestyle SCY 54.77 AAA+1.08s to AAAA·+3.78s to Sectionals 2026-10-09 2026 PC Sprintsvenue
200 Freestyle SCY 1:59.16 AAA+2.17s to AAAA·+7.37s to Sectionals 2026-10-28 2026 UVRays October Intrasquadfast pool
500 Freestyle SCY 5:51.79 A+6.80s to AA·+49.10s to Sectionals 2026-01-29 2026 UVRays Heart Attack Openvenue
1000 Freestyle SCY 11:32.47 AAA+29.88s to AAAA·+58.48s to Sectionals 2026-10-02 2026 Mike Harper Openfast pool
1650 Freestyle SCY 18:58.50 AAA+37.01s to AAAA·+81.61s to Sectionals 2026-09-30 2026 Mike Harper Openfast pool
25 Backstroke SCY 28.41 2020-12-11 2020 UT OA Thanksgiving Turkey Meatvenue
50 Backstroke SCY 28.32 AAA+0.13s to AAAA·+4.63s to Futures 2026-10-01 2026 Mike Harper Openfast pool
100 Backstroke SCY 1:00.24 AAA+0.75s to AAAA·+4.75s to Sectionals 2026-10-10 2026 PC Sprintsvenue
200 Backstroke SCY 2:07.20 AAAA·+5.91s to Sectionals 2026-10-01 2026 Mike Harper Openfast pool
25 Breaststroke SCY 31.40 2021-11-12 2021 UT OA Thanksgiving Turkey Meatvenue
50 Breaststroke SCY 34.24 AA+0.95s to AAA·+7.95s to Futures 2026-10-02 2026 Mike Harper Openfast pool
100 Breaststroke SCY 1:12.59 AA+1.20s to AAA·+9.40s to Sectionals 2026-10-28 2026 UVRays October Intrasquadfast pool
200 Breaststroke SCY 2:36.81 AA+2.42s to AAA·+19.52s to Sectionals 2026-10-01 2026 Mike Harper Openfast pool
25 Butterfly SCY 27.84 2021-11-12 2021 UT OA Thanksgiving Turkey Meatvenue
50 Butterfly SCY 28.70 AA+0.51s to AAA·+5.81s to Futures 2026-10-02 2026 Mike Harper Openfast pool
100 Butterfly SCY 1:01.04 AAA+1.95s to AAAA·+5.85s to Sectionals 2026-10-09 2026 PC Sprintsvenue
200 Butterfly SCY 2:41.15 BB+9.66s to A·+37.76s to Sectionals 2025-11-12 2025 UVRays November Intrasquadvenue
100 Individual Medley SCY 1:02.63 AAA+1.54s to AAAA 2026-10-09 2026 PC Sprintsvenue
200 Individual Medley SCY 2:13.61 AAA+1.52s to AAAA·+9.62s to Sectionals 2026-10-02 2026 Mike Harper Openfast pool
400 Individual Medley SCY 4:54.00 AAA+10.91s to AAAA·+29.31s to Sectionals 2026-09-09 2026 UVRays September Intrasquadfast pool
50 Freestyle LCM 29.00 AAA+0.91s to AAAA·+2.01s to Sectionals 2026-06-12 2026 UT CHAT INVITATIONALvenue
100 Freestyle LCM 1:02.07 AAA+0.48s to AAAA·+3.08s to Sectionals 2026-08-05 2026 Western Zone Age Group Championshipsvenue
200 Freestyle LCM 2:22.72 AA+1.93s to AAA·+14.03s to Sectionals 2026-06-27 2026 UT HAST RWB Time Trialsvenue
400 Freestyle LCM 5:01.34 AA+1.85s to AAA·+26.95s to Sectionals 2026-06-06 2026 UVRays Oviatt Invitational - copiedvenue
50 Backstroke LCM 32.42 AAAA·+4.53s to Futures 2026-07-18 2026 UTAGS LC Championshipsvenue
100 Backstroke LCM 1:08.89 AAAA·+3.70s to Sectionals 2026-08-05 2026 Western Zone Age Group Championshipsvenue
200 Backstroke LCM 2:28.28 AAAA·+6.79s to Sectionals 2026-08-06 2026 Western Zone Age Group Championshipsvenue
50 Breaststroke LCM 38.11 AA+0.02s to AAA·+7.22s to Futures 2026-07-16 2026 UTAGS LC Championshipsvenue
100 Breaststroke LCM 1:27.10 AA+4.01s to AAA·+13.40s to Sectionals 2026-06-05 2026 UVRays Oviatt Invitational - copiedvenue
200 Breaststroke LCM 3:05.20 AA+6.11s to AAA·+24.32s to Sectionals 2026-07-18 2026 UTAGS LC Championshipsvenue
50 Butterfly LCM 30.96 AAA+0.67s to AAAA·+4.67s to Futures 2026-01-01 2026 Western Zone Age Group LCM Championships
100 Butterfly LCM 1:10.13 AAA+2.34s to AAAA·+7.04s to Sectionals 2026-08-08 2026 Western Zone Age Group Championshipsvenue
200 Individual Medley LCM 2:37.42 AAA+6.33s to AAAA·+12.73s to Sectionals 2026-06-13 2026 UT CHAT INVITATIONALvenue
400 Individual Medley LCM 5:49.42 AA+5.33s to AAA·+41.63s to Sectionals 2026-06-04 2026 UVRays Oviatt Invitational - copiedvenue

Cuts are USA Swimming single-age motivational standards (B → AAAA) at age 12.

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 31.80 flat 200 Free Relay 2024-03-02 2024 UTAGS Short Course Championships
50 Freestyle SCY 24.93 flying 200 Free Relay (leg 4) 2026-03-07 2026 SC UTAGS Championships
100 Freestyle SCY 56.73 flying 400 Free Relay (leg 4) 2026-03-05 2026 SC UTAGS Championships
50 Butterfly SCY 28.38 flying 200 Medley Relay (leg 3) 2026-03-06 2026 SC UTAGS Championships
50 Freestyle LCM 28.86 flat 200 Free Relay 2026-07-18 2026 UTAGS LC Championships
100 Freestyle LCM 1:02.64 flat 400 Free Relay 2026-07-16 2026 UTAGS LC Championships
50 Backstroke LCM 33.26 flat 200 Medley Relay 2026-08-06 2026 Western Zone Age Group Championships
50 Butterfly LCM 30.13 flying 200 Medley Relay (leg 3) 2026-07-17 2026 UTAGS LC 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 11-12 · LCM

4442 points (5/5 events)

EventTime Points
400 FR LCM 5:01.34 853
100 BK LCM 1:08.89 1066
100 BR LCM 1:27.10 745
100 FL LCM 1:10.13 903
200 IM LCM 2:37.42 875

IMR 11-12 · LCM

4509 points (5/5 events)

EventTime Points
200 FR LCM 2:22.72 834
50 BK LCM 32.42 1015
50 BR LCM 38.11 849
50 FL LCM 30.96 936
200 IM LCM 2:37.42 875

Scored against AAAA motivational base times: ordering is exact, absolute points run ~25% above the official USA Swimming scale.

PR splits

100 Freestyle SCY 54.77

26.62
28.15

Front half 26.62s · back half 28.15s

200 Freestyle SCY 1:59.16

27.66
30.32
31.57
29.61

Front half 57.98s · back half 61.18s

500 Freestyle SCY 5:51.79

31.18
33.45
34.82
36.00
36.29
37.45
36.50
36.56
35.83
33.71

Front half 171.74s · back half 180.05s

1650 Freestyle SCY 18:58.50

29.70
33.56
34.10
34.71
35.24
34.70
34.61
35.13
34.77
34.61
35.01
34.81
35.19
34.71
35.31
35.38
35.30
35.44
35.19
35.00
35.12
34.25
34.99
34.92
34.79
34.73
34.65
34.44
35.24
34.00
33.94
33.64
31.32

100 Backstroke SCY 1:00.24

29.25
30.99

Front half 29.25s · back half 30.99s

200 Backstroke SCY 2:07.20

29.59
31.91
32.99
32.71

Front half 61.50s · back half 65.70s

100 Breaststroke SCY 1:12.59

35.06
37.53

Front half 35.06s · back half 37.53s

200 Breaststroke SCY 2:36.81

36.57
38.36
40.80
41.08

Front half 74.93s · back half 81.88s

100 Butterfly SCY 1:01.04

29.48
31.56

Front half 29.48s · back half 31.56s

200 Butterfly SCY 2:41.15

33.52
38.98
44.55
44.10

Front half 72.50s · back half 88.65s

100 Individual Medley SCY 1:02.63

28.48
34.15

Front half 28.48s · back half 34.15s

200 Individual Medley SCY 2:13.61

28.36
33.14
40.60
31.51

Front half 61.50s · back half 72.11s

100 Freestyle LCM 1:02.07

30.06
32.01

Front half 30.06s · back half 32.01s

200 Freestyle LCM 2:22.72

33.33
35.65
38.19
35.55

Front half 68.98s · back half 73.74s

400 Freestyle LCM 5:01.34

34.02
37.52
38.64
38.87
38.97
39.14
38.36
35.82

Front half 149.05s · back half 152.29s

200 Backstroke LCM 2:28.28

34.91
37.25
38.43
37.69

Front half 72.16s · back half 76.12s

100 Breaststroke LCM 1:27.10

41.88
45.22

Front half 41.88s · back half 45.22s

200 Breaststroke LCM 3:05.20

41.48
47.33
48.28
48.11

Front half 88.81s · back half 96.39s

100 Butterfly LCM 1:10.13

32.95
37.18

Front half 32.95s · back half 37.18s

200 Individual Medley LCM 2:37.42

31.91
40.81
46.79
37.91

Front half 72.72s · back half 84.70s

400 Individual Medley LCM 5:49.42

33.35
37.61
48.65
46.88
49.99
50.70
42.68
39.56

Front half 166.49s · back half 182.93s

Reaction time

fastest 0.60s average 0.600s slowest 0.60s 1 electronic start

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.

25 Freestyle SCY 26.02 1 swim
50 Freestyle SCY 25.67 30 swims
100 Freestyle SCY 54.77 21 swims
200 Freestyle SCY 1:59.16 10 swims
500 Freestyle SCY 5:51.79 8 swims
1000 Freestyle SCY 11:32.47 1 swim
1650 Freestyle SCY 18:58.50 2 swims
25 Backstroke SCY 28.41 1 swim
50 Backstroke SCY 28.32 24 swims
100 Backstroke SCY 1:00.24 12 swims
200 Backstroke SCY 2:07.20 5 swims
25 Breaststroke SCY 31.40 1 swim
50 Breaststroke SCY 34.24 15 swims
100 Breaststroke SCY 1:12.59 15 swims
200 Breaststroke SCY 2:36.81 5 swims
25 Butterfly SCY 27.84 1 swim
50 Butterfly SCY 28.70 25 swims
100 Butterfly SCY 1:01.04 14 swims
200 Butterfly SCY 2:41.15 1 swim
100 Individual Medley SCY 1:02.63 20 swims
200 Individual Medley SCY 2:13.61 14 swims
400 Individual Medley SCY 4:54.00 2 swims
50 Freestyle LCM 29.00 19 swims
100 Freestyle LCM 1:02.07 20 swims
200 Freestyle LCM 2:22.72 12 swims
400 Freestyle LCM 5:01.34 5 swims
50 Backstroke LCM 32.42 27 swims
100 Backstroke LCM 1:08.89 19 swims
200 Backstroke LCM 2:28.28 12 swims
50 Breaststroke LCM 38.11 16 swims
100 Breaststroke LCM 1:27.10 7 swims
200 Breaststroke LCM 3:05.20 3 swims
50 Butterfly LCM 30.96 31 swims
100 Butterfly LCM 1:10.13 20 swims
200 Individual Medley LCM 2:37.42 13 swims
400 Individual Medley LCM 5:49.42 2 swims