River Shin

Mage 12HIIOLKSC

75 plausible swims · 17 meets · 2022-09-10 → 2026-07-05

Personal records

Event	Course	Best	Cut	Date	Meet
50 Freestyle	SCY	28.78	BB+0.69s to A	2026-04-19	44th Annual Harry Mamizuka Invitational venue
100 Freestyle	SCY	1:02.60	BB+1.31s to A	2026-04-18	44th Annual Harry Mamizuka Invitational venue
200 Freestyle	SCY	2:15.99	BB+2.30s to A	2026-04-19	44th Annual Harry Mamizuka Invitational venue
500 Freestyle	SCY	6:02.62	BB+2.63s to A	2026-02-26	2026 HI Hawaiian Swimming SCY AGChamps fast pool
50 Backstroke	SCY	34.48	BB+1.79s to A	2026-02-28	2026 HI Hawaiian Swimming SCY AGChamps fast pool
100 Backstroke	SCY	1:11.95	BB+2.66s to A	2026-04-18	44th Annual Harry Mamizuka Invitational venue
50 Breaststroke	SCY	45.48	+1.99s to B	2023-12-02	2023 HI 43rd Annual Ken Suenaga Invitational venue
100 Breaststroke	SCY	1:23.01	BB+4.62s to A	2026-04-19	44th Annual Harry Mamizuka Invitational venue
50 Butterfly	SCY	37.18	+0.09s to B	2025-10-25	2025 HI 25th Annual Bill Smith Invitational - venue
100 Butterfly	SCY	1:15.72	BB+6.43s to A	2026-04-19	44th Annual Harry Mamizuka Invitational venue
100 Individual Medley	SCY	1:15.12	BB+5.13s to A	2026-02-27	2026 HI Hawaiian Swimming SCY AGChamps fast pool
200 Individual Medley	SCY	2:35.44	BB+3.15s to A	2026-04-18	44th Annual Harry Mamizuka Invitational venue
50 Freestyle	LCM	32.80	BB+0.71s to A	2026-06-07	2026 15th Annual Wada Rainbow Invitational - venue
100 Freestyle	LCM	1:11.47	BB+1.08s to A	2026-06-06	2026 15th Annual Wada Rainbow Invitational - venue
200 Freestyle	LCM	2:32.33	A+5.14s to AA	2026-07-05	2026 Keo Nakama Swim Meet venue
400 Freestyle	LCM	5:19.77	A+6.68s to AA	2026-07-03	2026 Keo Nakama Swim Meet venue
50 Backstroke	LCM	39.05	BB+1.26s to A	2026-05-02	Keiko Price Sprint Meet & Aloha Mile venue
100 Backstroke	LCM	1:21.18	A+3.09s to AA	2026-07-05	2026 Keo Nakama Swim Meet venue
200 Backstroke	LCM	2:52.77	A+6.08s to AA	2026-07-04	2026 Keo Nakama Swim Meet venue
50 Breaststroke	LCM	43.65	BB+1.66s to A	2026-07-04	2026 Keo Nakama Swim Meet venue
100 Breaststroke	LCM	1:38.32	BB+7.03s to A	2026-06-07	2026 15th Annual Wada Rainbow Invitational - venue
50 Butterfly	LCM	38.03	BB+2.74s to A	2026-06-06	2026 15th Annual Wada Rainbow Invitational - venue
100 Butterfly	LCM	1:30.84	B+3.55s to BB	2026-07-04	2026 Keo Nakama Swim Meet venue
200 Individual Medley	LCM	2:55.71	BB+1.52s to A	2026-07-03	2026 Keo Nakama Swim Meet venue

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

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	35.14	flying	200 Free Relay (leg 2)	2023-12-02	2023 HI 43rd Annual Ken Suenaga Invitational
50 Breaststroke	SCY	40.11	flying	200 Medley Relay (leg 2)	2023-12-03	2023 HI 43rd Annual Ken Suenaga Invitational

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

2927 points (5/5 events)

Event	Time	Points
400 FR LCM	5:19.77	714
100 BK LCM	1:21.18	651
100 BR LCM	1:38.32	518
100 FL LCM	1:30.84	415
200 IM LCM	2:55.71	629

IMR 11-12 · LCM

2966 points (5/5 events)

Event	Time	Points
200 FR LCM	2:32.33	686
50 BK LCM	39.05	581
50 BR LCM	43.65	565
50 FL LCM	38.03	505
200 IM LCM	2:55.71	629

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

PR splits

100 Freestyle SCY 1:02.60

30.15

32.45

Front half 30.15s · back half 32.45s

200 Freestyle SCY 2:15.99

30.85

34.78

35.20

35.16

Front half 65.63s · back half 70.36s

500 Freestyle SCY 6:02.62

31.34

35.30

36.52

37.12

38.14

37.28

37.16

36.91

37.07

35.78

Front half 178.42s · back half 184.20s

100 Backstroke SCY 1:11.95

34.84

37.11

Front half 34.84s · back half 37.11s

100 Breaststroke SCY 1:23.01

40.61

42.40

Front half 40.61s · back half 42.40s

100 Butterfly SCY 1:15.72

36.41

39.31

Front half 36.41s · back half 39.31s

100 Individual Medley SCY 1:15.12

35.69

39.43

Front half 35.69s · back half 39.43s

200 Individual Medley SCY 2:35.44

36.01

39.03

46.84

33.56

Front half 75.04s · back half 80.40s

200 Freestyle LCM 2:32.33

73.55

78.78

Front half 73.55s · back half 78.78s

400 Freestyle LCM 5:19.77

75.64

83.18

82.43

78.52

Front half 158.82s · back half 160.95s

200 Backstroke LCM 2:52.77

84.82

87.95

Front half 84.82s · back half 87.95s

200 Individual Medley LCM 2:55.71

84.41

91.30

Front half 84.41s · back half 91.30s

Progression

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

50 Freestyle SCY 28.78 5 swims

100 Freestyle SCY 1:02.60 5 swims

200 Freestyle SCY 2:15.99 8 swims

500 Freestyle SCY 6:02.62 3 swims

50 Backstroke SCY 34.48 5 swims

100 Backstroke SCY 1:11.95 3 swims

50 Breaststroke SCY 45.48 5 swims

100 Breaststroke SCY 1:23.01 4 swims

50 Butterfly SCY 37.18 4 swims

100 Butterfly SCY 1:15.72 3 swims

100 Individual Medley SCY 1:15.12 4 swims

200 Individual Medley SCY 2:35.44 4 swims

50 Freestyle LCM 32.80 3 swims

100 Freestyle LCM 1:11.47 1 swim

200 Freestyle LCM 2:32.33 1 swim

400 Freestyle LCM 5:19.77 1 swim

50 Backstroke LCM 39.05 2 swims

100 Backstroke LCM 1:21.18 1 swim

200 Backstroke LCM 2:52.77 1 swim

50 Breaststroke LCM 43.65 3 swims

100 Breaststroke LCM 1:38.32 2 swims

50 Butterfly LCM 38.03 4 swims

100 Butterfly LCM 1:30.84 2 swims

200 Individual Medley LCM 2:55.71 1 swim