Kenji Kasubuchi

Mage 17MTNMORPNUTLAOCIT

320 plausible swims · 45 meets · 2022-08-03 → 2026-06-14

Personal records

Event	Course	Best	Cut	Date	Meet
50 Freestyle	SCY	22.56	AA+0.47s to AAA	2025-12-21	2025 Legacy Aquatics Showdown venue
100 Freestyle	SCY	50.29	AA+2.00s to AAA	2025-01-19	2025 PN VAST 48th Annual Washington Open venue
200 Freestyle	SCY	1:52.88	A+1.69s to AA	2024-01-13	2024 PN VAST 47th Annual Washington Open venue
500 Freestyle	SCY	4:48.56	AAA+13.07s to AAAA	2025-01-17	2025 PN VAST 48th Annual Washington Open venue
100 Backstroke	SCY	53.83	AA+1.34s to AAA	2024-12-06	2024 Tualatin Hills Holiday Classic
200 Backstroke	SCY	1:54.44	AAA+4.85s to AAAA	2025-01-16	2025 PN VAST 48th Annual Washington Open
50 Breaststroke	SCY	28.30	AA+0.01s to AAA	2025-12-20	2025 Legacy Aquatics Showdown venue
100 Breaststroke	SCY	58.04	AAA+1.35s to AAAA	2026-02-21	2026 OSAA 6A Championships venue
200 Breaststroke	SCY	2:06.20	AAA+3.01s to AAAA	2026-03-12	2026 Bellevue Club Premier Invite- Approved fast pool
50 Butterfly	SCY	25.51	AA+1.02s to AAA	2025-03-09	OC Spring Finale venue
100 Butterfly	SCY	51.11	AAA+1.52s to AAAA	2026-02-21	2026 OSAA 6A Championships venue
200 Butterfly	SCY	1:55.08	AAA+3.49s to AAAA	2026-01-18	2026 PN VAST 49th Annual Washington Open- APP venue
200 Individual Medley	SCY	1:55.86	AAA+3.67s to AAAA	2026-03-15	2026 Bellevue Club Premier Invite- Approved fast pool
400 Individual Medley	SCY	4:06.35	AAA+4.86s to AAAA	2026-01-17	2026 PN VAST 49th Annual Washington Open- APP venue
400 Freestyle	SCM	4:20.69	AA+8.20s to AAA	2024-11-03	Oregon City Fall Open 2024 venue
800 Freestyle	SCM	9:12.47	AA+23.58s to AAA	2025-11-01	Oregon City Fall Open 2025 venue
100 Backstroke	SCM	1:03.04	A+2.35s to AA	2024-11-02	Oregon City Fall Open 2024 venue
200 Backstroke	SCM	2:13.09	A+0.50s to AA	2024-11-03	Oregon City Fall Open 2024 venue
50 Breaststroke	SCM	32.39	AA+1.10s to AAA	2025-11-02	Oregon City Fall Open 2025 venue
100 Breaststroke	SCM	1:10.88	A+2.29s to AA	2025-11-02	Oregon City Fall Open 2025 venue
200 Breaststroke	SCM	2:34.12	A+5.03s to AA	2024-11-02	Oregon City Fall Open 2024 venue
50 Butterfly	SCM	27.78	AA+0.69s to AAA	2025-11-01	Oregon City Fall Open 2025 venue
100 Butterfly	SCM	1:00.78	A+0.69s to AA	2025-11-01	Oregon City Fall Open 2025 venue
200 Individual Medley	SCM	2:15.51	AA+5.62s to AAA	2024-11-03	Oregon City Fall Open 2024 venue
50 Freestyle	LCM	25.37	AAA+0.98s to AAAA	2025-06-07	2025 OR CRST Summer Blast 2 venue
100 Freestyle	LCM	57.26	AA+1.67s to AAA	2024-07-31	GroupB - WZ LCM Senior Champs 2024 venue
100 Backstroke	LCM	1:03.32	AA+1.43s to AAA	2025-07-27	2025 OSI Arena 11&O LC Championships venue
200 Backstroke	LCM	2:15.36	AA+0.57s to AAA	2025-07-17	2025 Speedo Sectionals - Mt Hood WZ
100 Breaststroke	LCM	1:11.21	AA+2.02s to AAA	2026-06-14	73rd Ted Walker Invitational-2026 venue
200 Breaststroke	LCM	2:33.05	AA+2.06s to AAA	2025-07-17	2025 Speedo Sectionals - Mt Hood WZ venue
50 Butterfly	LCM	27.90	AA+0.21s to AAA	2025-05-02	2025 THSC Spring Invitational
100 Butterfly	LCM	59.19	AAA+2.20s to AAAA	2024-08-01	WZ LCM Senior Champs 2024 venue
200 Butterfly	LCM	2:17.58	AA+4.39s to AAA	2024-07-11	2024 Speedo Sectionals - Mt Hood venue
200 Individual Medley	LCM	2:13.46	AAA+3.47s to AAAA	2025-07-24	2025 OSI Arena 11&O LC Championships venue
400 Individual Medley	LCM	4:49.56	AAA+10.47s to AAAA	2025-07-11	2025 THSC Summer Classic

Cuts are USA Swimming single-age motivational standards (B → AAAA) at age 17.

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	22.16	flat	200 Free Relay	2026-02-21	2026 OSAA 6A Championships
50 Freestyle	SCY	22.97	flying	200 Medley Relay (leg 4)	2023-03-09	2023 Northwest Spring Speedo Sectionals
50 Freestyle	SCY	21.99	flying	200 Free Relay (leg 4)	2025-04-05	2025 SC Western Zone Sr. Championships
100 Freestyle	SCY	48.06	flying	400 Free Relay (leg 4)	2026-02-21	2026 OSAA 6A Championships
50 Breaststroke	SCY	26.88	flying	200 Medley Relay (leg 2)	2025-04-04	2025 SC Western Zone Sr. Championships
50 Freestyle	LCM	25.15	flat	200 Free Relay	2025-07-17	2025 Speedo Sectionals - Mt Hood WZ
50 Freestyle	LCM	25.19	flying	200 Free Relay (leg 2)	2024-03-14	2024 Northwest Spring Speedo Sectionals
100 Freestyle	LCM	57.09	flat	400 Free Relay	2024-03-15	2024 Northwest Spring Speedo Sectionals
100 Freestyle	LCM	57.23	flying	400 Free Relay (leg 2)	2024-08-02	GroupB - WZ LCM Senior Champs 2024
200 Freestyle	LCM	2:04.06	flying	800 Free Relay (leg 3)	2024-03-16	2024 Northwest Spring Speedo Sectionals
50 Backstroke	LCM	30.45	flat	200 Medley Relay	2024-03-14	2024 Northwest Spring Speedo Sectionals
100 Backstroke	LCM	1:05.19	flat	400 Medley Relay	2024-07-14	2024 Speedo Sectionals - Mt Hood
50 Breaststroke	LCM	31.80	flying	200 Medley Relay (leg 2)	2025-07-17	2025 Speedo Sectionals - Mt Hood WZ
100 Butterfly	LCM	1:00.58	flying	400 Medley Relay (leg 3)	2024-08-03	GroupB - WZ LCM Senior Champs 2024

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

5212 points (6/6 events)

Event	Time	Points
500 FR SCY	4:48.56	841
200 BK SCY	1:54.44	837
200 BR SCY	2:06.20	896
200 FL SCY	1:55.08	868
200 IM SCY	1:55.86	869
400 IM SCY	4:06.35	901

IMR 17-18 · SCY

4100 points (5/5 events)

Event	Time	Points
200 FR SCY	1:52.88	699
100 BK SCY	53.83	749
100 BR SCY	58.04	897
100 FL SCY	51.11	886
200 IM SCY	1:55.86	869

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

PR splits

100 Freestyle SCY 50.29 RT 0.55s

24.13

26.16

Front half 24.13s · back half 26.16s

200 Freestyle SCY 1:52.88 RT 0.59s

25.38

28.63

29.34

29.53

Front half 54.01s · back half 58.87s

500 Freestyle SCY 4:48.56 RT 0.59s

26.31

28.79

29.45

29.03

29.13

29.37

29.58

29.84

29.94

27.12

Front half 142.71s · back half 145.85s

100 Breaststroke SCY 58.04

27.58

30.46

Front half 27.58s · back half 30.46s

200 Breaststroke SCY 2:06.20 RT 0.80s

28.76

32.28

32.42

32.74

Front half 61.04s · back half 65.16s

100 Butterfly SCY 51.11

24.09

27.02

Front half 24.09s · back half 27.02s

200 Butterfly SCY 1:55.08 RT 0.78s

26.24

29.42

29.96

29.46

Front half 55.66s · back half 59.42s

200 Individual Medley SCY 1:55.86 RT 0.78s

25.16

30.20

33.24

27.26

Front half 55.36s · back half 60.50s

400 Individual Medley SCY 4:06.35 RT 0.78s

26.13

30.50

32.56

31.68

34.08

34.16

29.11

28.13

Front half 120.87s · back half 125.48s

400 Freestyle SCM 4:20.69

29.28

31.94

32.77

32.56

32.89

33.50

34.50

33.25

Front half 126.55s · back half 134.14s

800 Freestyle SCM 9:12.47

30.81

34.02

33.69

33.52

34.24

34.21

34.37

34.06

35.57

36.54

36.24

36.38

35.58

36.06

34.03

33.15

Front half 268.92s · back half 283.55s

100 Backstroke SCM 1:03.04

31.04

32.00

Front half 31.04s · back half 32.00s

200 Backstroke SCM 2:13.09

31.93

33.93

34.13

33.10

Front half 65.86s · back half 67.23s

100 Breaststroke SCM 1:10.88

33.00

37.88

Front half 33.00s · back half 37.88s

200 Breaststroke SCM 2:34.12

33.75

37.95

40.45

41.97

Front half 71.70s · back half 82.42s

100 Butterfly SCM 1:00.78

28.97

31.81

Front half 28.97s · back half 31.81s

200 Individual Medley SCM 2:15.51

29.74

34.51

39.39

31.87

Front half 64.25s · back half 71.26s

100 Freestyle LCM 57.26

27.47

29.79

Front half 27.47s · back half 29.79s

100 Backstroke LCM 1:03.32

30.95

32.37

Front half 30.95s · back half 32.37s

200 Breaststroke LCM 2:33.05

73.63

79.42

Front half 73.63s · back half 79.42s

100 Butterfly LCM 59.19

28.08

31.11

Front half 28.08s · back half 31.11s

200 Butterfly LCM 2:17.58

64.97

72.61

Front half 64.97s · back half 72.61s

200 Individual Medley LCM 2:13.46

29.04

35.40

38.11

30.91

Front half 64.44s · back half 69.02s

Reaction time

fastest 0.54s average 0.703s slowest 0.97s 53 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.

Progression

Faster times are higher. One card per event, all courses & history.

50 Freestyle SCY 22.56 4 swims

100 Freestyle SCY 50.29 2 swims

200 Freestyle SCY 1:52.88 2 swims

500 Freestyle SCY 4:48.56 5 swims

100 Backstroke SCY 53.83 13 swims

200 Backstroke SCY 1:54.44 21 swims

50 Breaststroke SCY 28.30 2 swims

100 Breaststroke SCY 58.04 27 swims

200 Breaststroke SCY 2:06.20 23 swims

50 Butterfly SCY 25.51 1 swim

100 Butterfly SCY 51.11 31 swims

200 Butterfly SCY 1:55.08 13 swims

200 Individual Medley SCY 1:55.86 20 swims

400 Individual Medley SCY 4:06.35 20 swims

400 Freestyle SCM 4:20.69 1 swim

800 Freestyle SCM 9:12.47 1 swim

100 Backstroke SCM 1:03.04 1 swim

200 Backstroke SCM 2:13.09 1 swim

50 Breaststroke SCM 32.39 1 swim

100 Breaststroke SCM 1:10.88 1 swim

200 Breaststroke SCM 2:34.12 1 swim

50 Butterfly SCM 27.78 1 swim

100 Butterfly SCM 1:00.78 2 swims

200 Individual Medley SCM 2:15.51 1 swim

50 Freestyle LCM 25.37 6 swims

100 Freestyle LCM 57.26 4 swims

100 Backstroke LCM 1:03.32 7 swims

200 Backstroke LCM 2:15.36 20 swims

100 Breaststroke LCM 1:11.21 9 swims

200 Breaststroke LCM 2:33.05 12 swims

50 Butterfly LCM 27.90 2 swims

100 Butterfly LCM 59.19 20 swims

200 Butterfly LCM 2:17.58 7 swims

200 Individual Medley LCM 2:13.46 23 swims

400 Individual Medley LCM 4:49.56 15 swims