Jin Nakajima

Mage 13CAIEMTORPCPNSIBAACLOSCORUNAT

210 plausible swims · 32 meets · 2024-03-21 → 2026-04-26

Personal records

Event	Course	Best	Cut	Date	Meet
50 Freestyle	SCY	26.30	A+0.71s to AA	2026-02-15	2026 MVN Lunar AAPI Festival venue
100 Freestyle	SCY	57.18	A+1.69s to AA	2025-12-13	2025 OR HEAT Age Group Jubilee venue
200 Freestyle	SCY	2:02.99	A+1.60s to AA	2025-12-14	2025 OR HEAT Age Group Jubilee venue
500 Freestyle	SCY	5:22.99	AA+9.70s to AAA	2026-03-06	2026 OSI Arena SC 11-14 Champs fast pool
1000 Freestyle	SCY	11:12.56	AA+24.37s to AAA	2026-03-08	2026 OSI Arena SC 11-14 Champs fast pool
1650 Freestyle	SCY	18:43.11	AA+32.92s to AAA	2026-03-22	2026 NW Region Age Group Champs- Approved venue
50 Backstroke	SCY	31.17	BB+0.78s to A	2025-11-23	2025 Dual Meet venue
100 Backstroke	SCY	1:05.32	BB+1.53s to A	2026-02-13	2026 MVN Lunar AAPI Festival venue
200 Backstroke	SCY	2:20.78	BB+1.79s to A	2026-01-18	2026 THSC 14&U Winter Showcase venue
50 Breaststroke	SCY	30.09	AAAA	2026-03-06	2026 OSI Arena SC 11-14 Champs fast pool
100 Breaststroke	SCY	1:05.12	AAA+1.83s to AAAA	2026-03-20	2026 NW Region Age Group Champs- Approved venue
200 Breaststroke	SCY	2:22.27	AAA+5.08s to AAAA	2026-03-21	2026 NW Region Age Group Champs- Approved venue
50 Butterfly	SCY	29.60	A+1.11s to AA	2026-02-15	2026 MVN Lunar AAPI Festival venue
100 Butterfly	SCY	1:05.43	BB+2.24s to A	2026-01-17	2026 THSC 14&U Winter Showcase venue
200 Butterfly	SCY	2:30.63	BB+8.94s to A	2025-12-14	2025 OR HEAT Age Group Jubilee venue
100 Individual Medley	SCY	1:00.23		2025-03-20	Southwest Age Group Regional 2025
200 Individual Medley	SCY	2:15.49	A+0.20s to AA	2026-01-16	2026 THSC 14&U Winter Showcase venue
400 Individual Medley	SCY	4:48.55	AA+11.36s to AAA	2026-03-20	2026 NW Region Age Group Champs- Approved venue
200 Freestyle	SCM	2:17.83	A+3.74s to AA	2026-04-26	GACC Spring Invitational venue
400 Freestyle	SCM	4:51.81	A+5.22s to AA	2026-04-25	GACC Spring Invitational venue
50 Breaststroke	SCM	34.02	AAA+0.43s to AAAA	2026-04-26	GACC Spring Invitational venue
100 Breaststroke	SCM	1:14.91	AA+1.72s to AAA	2026-04-25	GACC Spring Invitational venue
200 Breaststroke	SCM	2:46.87	A+0.78s to AA	2026-04-26	GACC Spring Invitational venue
200 Individual Medley	SCM	2:32.45	A+2.96s to AA	2026-04-25	GACC Spring Invitational venue
50 Freestyle	LCM	31.24	BB+0.65s to A	2025-06-29	2025 Howard Jones Open venue
200 Freestyle	LCM	2:26.75	BB+1.06s to A	2025-08-07	2025 Western Zone Age Group Championships fast pool
400 Freestyle	LCM	5:04.79	A+9.10s to AA	2025-07-25	2025 OSI Arena 11&O LC Championships venue
800 Freestyle	LCM	11:00.40	BB+16.41s to A	2025-04-18	2025 MAC LONG-COURSE INVITATIONAL venue
1500 Freestyle	LCM	20:28.58	A+46.59s to AA	2025-05-30	LA OPEN 2025 venue
50 Backstroke	LCM	37.78	BB+2.39s to A	2025-05-31	LA OPEN 2025 venue
100 Backstroke	LCM	1:22.42	B+1.33s to BB	2025-06-22	2025 SI SPLASH AND DASH venue
200 Backstroke	LCM	2:50.92	BB+8.23s to A	2025-05-04	2025 AAA May LC Invitational venue
50 Breaststroke	LCM	36.47	AA+0.38s to AAA	2025-06-20	2025 SI SPLASH AND DASH venue
100 Breaststroke	LCM	1:20.24	A+0.35s to AA	2025-07-26	2025 OSI Arena 11&O LC Championships venue
200 Breaststroke	LCM	2:59.39	A+4.10s to AA	2025-08-09	2025 Western Zone Age Group Championships fast pool
50 Butterfly	LCM	35.38	BB+1.89s to A	2025-07-13	2025 Seth Dawson venue
100 Butterfly	LCM	1:18.59	B+0.50s to BB	2025-06-27	2025 Howard Jones Open venue
200 Butterfly	LCM	2:59.48	B+3.99s to BB	2025-06-21	2025 SI SPLASH AND DASH venue
200 Individual Medley	LCM	2:43.52	BB+0.33s to A	2025-07-24	2025 OSI Arena 11&O LC Championships venue
400 Individual Medley	LCM	5:55.45	BB+6.86s to A	2025-05-04	2025 AAA May LC Invitational venue

Cuts are USA Swimming single-age motivational standards (B → AAAA) at age 13.

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	28.33	flat	200 Free Relay	2025-03-01	2025 OSI Arena SC 11-14 Champs
100 Freestyle	SCY	1:01.49	flying	400 Free Relay (leg 2)	2025-03-02	2025 OSI Arena SC 11-14 Champs
50 Breaststroke	SCY	34.82	flying	200 Medley Relay (leg 2)	2025-03-02	2025 OSI Arena SC 11-14 Champs
100 Breaststroke	SCY	1:11.22	flying	400 Medley Relay (leg 2)	2026-01-18	2026 THSC 14&U Winter Showcase
50 Breaststroke	SCM	43.79	flying	200 Medley Relay (leg 2)	2026-04-26	GACC Spring Invitational
50 Freestyle	LCM	31.33	flying	200 Free Relay (leg 4)	2025-07-26	2025 OSI Arena 11&O LC Championships
100 Freestyle	LCM	1:07.85	flying	400 Free Relay (leg 4)	2025-07-26	2025 OSI Arena 11&O LC Championships
50 Breaststroke	LCM	37.64	flying	200 Medley Relay (leg 2)	2025-07-25	2025 OSI Arena 11&O LC Championships
100 Breaststroke	LCM	1:22.66	flying	400 Medley Relay (leg 2)	2025-07-27	2025 OSI Arena 11&O 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 13-14 · SCY

3880 points (6/6 events)

Event	Time	Points
500 FR SCY	5:22.99	718
200 BK SCY	2:20.78	559
200 BR SCY	2:22.27	784
200 FL SCY	2:30.63	475
200 IM SCY	2:15.49	668
400 IM SCY	4:48.55	676

IMR 13-14 · SCY

3198 points (5/5 events)

Event	Time	Points
200 FR SCY	2:02.99	656
100 BK SCY	1:05.32	549
100 BR SCY	1:05.12	797
100 FL SCY	1:05.43	528
200 IM SCY	2:15.49	668

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

PR splits

100 Freestyle SCY 57.18

27.38

29.80

Front half 27.38s · back half 29.80s

200 Freestyle SCY 2:02.99

27.47

31.01

32.49

32.02

Front half 58.48s · back half 64.51s

500 Freestyle SCY 5:22.99

28.70

31.88

32.52

32.65

33.76

33.13

33.29

33.02

32.54

31.50

Front half 159.51s · back half 163.48s

1000 Freestyle SCY 11:12.56

28.54

32.50

33.55

34.11

34.17

34.89

34.50

34.57

34.37

34.90

34.42

34.27

33.66

34.46

34.19

33.07

33.61

33.60

33.14

32.04

Front half 336.10s · back half 336.46s

1650 Freestyle SCY 18:43.11 RT 0.65s

29.25

32.53

33.42

34.25

34.18

34.51

34.31

34.61

34.80

34.35

35.40

35.25

35.11

34.67

33.88

33.83

33.96

33.83

33.62

33.79

34.26

34.05

34.38

34.33

34.28

34.40

34.39

34.49

34.07

34.05

34.51

33.92

32.43

100 Backstroke SCY 1:05.32

31.64

33.68

Front half 31.64s · back half 33.68s

200 Backstroke SCY 2:20.78

32.70

35.86

36.73

35.49

Front half 68.56s · back half 72.22s

100 Breaststroke SCY 1:05.12 RT 0.63s

30.67

34.45

Front half 30.67s · back half 34.45s

200 Breaststroke SCY 2:22.27 RT 0.63s

32.04

36.04

37.14

37.05

Front half 68.08s · back half 74.19s

100 Butterfly SCY 1:05.43

30.19

35.24

Front half 30.19s · back half 35.24s

200 Butterfly SCY 2:30.63

31.99

38.28

39.41

40.95

Front half 70.27s · back half 80.36s

200 Individual Medley SCY 2:15.49

29.97

36.37

37.70

31.45

Front half 66.34s · back half 69.15s

400 Individual Medley SCY 4:48.55 RT 0.69s

30.63

36.59

39.23

38.21

39.09

40.26

32.49

32.05

Front half 144.66s · back half 143.89s

200 Freestyle SCM 2:17.83

31.39

35.18

36.11

35.15

Front half 66.57s · back half 71.26s

400 Freestyle SCM 4:51.81

32.75

36.39

37.64

37.91

37.14

37.69

36.78

35.51

Front half 144.69s · back half 147.12s

100 Breaststroke SCM 1:14.91

35.16

39.75

Front half 35.16s · back half 39.75s

200 Breaststroke SCM 2:46.87

36.44

42.14

44.00

44.29

Front half 78.58s · back half 88.29s

200 Individual Medley SCM 2:32.45

33.99

40.29

42.34

35.83

Front half 74.28s · back half 78.17s

200 Freestyle LCM 2:26.75

70.76

75.99

Front half 70.76s · back half 75.99s

400 Freestyle LCM 5:04.79

33.03

38.10

38.94

39.31

39.78

39.92

38.35

37.36

Front half 149.38s · back half 155.41s

800 Freestyle LCM 11:00.40

78.21

83.72

84.25

84.51

84.23

84.06

82.18

79.24

Front half 330.69s · back half 329.71s

1500 Freestyle LCM 20:28.58

35.17

24.29

15.92

23.48

17.53

21.66

20.26

319.56

14.59

27.68

137.02

34.27

7.89

206.01

4.54

37.06

5.85

199.67

18.19

20.58

37.36

100 Backstroke LCM 1:22.42

40.41

42.01

Front half 40.41s · back half 42.01s

200 Backstroke LCM 2:50.92

39.21

42.99

45.06

43.66

Front half 82.20s · back half 88.72s

100 Breaststroke LCM 1:20.24

38.06

42.18

Front half 38.06s · back half 42.18s

200 Breaststroke LCM 2:59.39

86.59

92.80

Front half 86.59s · back half 92.80s

200 Butterfly LCM 2:59.48

38.24

45.89

48.37

46.98

Front half 84.13s · back half 95.35s

200 Individual Medley LCM 2:43.52

81.58

46.34

35.60

400 Individual Medley LCM 5:55.45

38.63

44.78

47.56

46.47

48.58

51.70

39.10

38.63

Front half 177.44s · back half 178.01s

Reaction time

fastest 0.63s average 0.644s slowest 0.69s 15 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 26.30 4 swims

100 Freestyle SCY 57.18 10 swims

200 Freestyle SCY 2:02.99 8 swims

500 Freestyle SCY 5:22.99 6 swims

1000 Freestyle SCY 11:12.56 1 swim

1650 Freestyle SCY 18:43.11 3 swims

50 Backstroke SCY 31.17 3 swims

100 Backstroke SCY 1:05.32 8 swims

200 Backstroke SCY 2:20.78 1 swim

50 Breaststroke SCY 30.09 18 swims

100 Breaststroke SCY 1:05.12 21 swims

200 Breaststroke SCY 2:22.27 13 swims

50 Butterfly SCY 29.60 8 swims

100 Butterfly SCY 1:05.43 5 swims

200 Butterfly SCY 2:30.63 2 swims

100 Individual Medley SCY 1:00.23 15 swims

200 Individual Medley SCY 2:15.49 15 swims

400 Individual Medley SCY 4:48.55 4 swims

200 Freestyle SCM 2:17.83 1 swim

400 Freestyle SCM 4:51.81 1 swim

50 Breaststroke SCM 34.02 1 swim

100 Breaststroke SCM 1:14.91 1 swim

200 Breaststroke SCM 2:46.87 1 swim

200 Individual Medley SCM 2:32.45 1 swim

50 Freestyle LCM 31.24 3 swims

200 Freestyle LCM 2:26.75 1 swim

400 Freestyle LCM 5:04.79 3 swims

800 Freestyle LCM 11:00.40 1 swim

1500 Freestyle LCM 20:28.58 5 swims

50 Backstroke LCM 37.78 1 swim

100 Backstroke LCM 1:22.42 3 swims

200 Backstroke LCM 2:50.92 3 swims

50 Breaststroke LCM 36.47 8 swims

100 Breaststroke LCM 1:20.24 9 swims

200 Breaststroke LCM 2:59.39 4 swims

50 Butterfly LCM 35.38 5 swims

100 Butterfly LCM 1:18.59 3 swims

200 Butterfly LCM 2:59.48 2 swims

200 Individual Medley LCM 2:43.52 6 swims

400 Individual Medley LCM 5:55.45 2 swims