Daisuke Nakashima

Mage 17COMTNMSTUTCUDAUNUN-01

413 plausible swims · 78 meets · 2018-06-30 → 2025-07-26

Personal records

Event	Course	Best	Cut	Date	Meet
25 Freestyle	SCY	10.20		2025-02-09	2025 CO NJ Groundhog Invite fast pool
50 Freestyle	SCY	22.05	AAA+0.96s to AAAA	2025-03-30	2025 Four Corners Speedo Sectionals - Austin venue
100 Freestyle	SCY	49.40	AA+1.11s to AAA	2023-11-05	2023 CO ACES Fall High Point Invite venue
200 Freestyle	SCY	1:44.78	AAA+3.29s to AAAA	2025-03-28	2025 Four Corners Speedo Sectionals - Austin venue
500 Freestyle	SCY	4:57.48	AA+8.89s to AAA	2023-05-06	2023 CO OB Front Range League Championships venue
50 Backstroke	SCY	34.32	+3.13s to B	2019-11-23	2019 CO CUDA Pentathlon XXXII venue
100 Backstroke	SCY	56.22	A+1.33s to AA	2023-11-19	2023 CO CUDA Pentathlon XXXVI venue
200 Backstroke	SCY	2:03.04	A+3.05s to AA	2025-01-18	2025 CO CUDA Classic venue
50 Breaststroke	SCY	27.59	AAA+0.60s to AAAA	2024-11-03	2024 CO ACES High Point Invite venue
100 Breaststroke	SCY	55.70	AAAA	2025-03-29	2025 Four Corners Speedo Sectionals - Austin venue
200 Breaststroke	SCY	2:01.10	AAAA	2025-03-27	2025 Four Corners Speedo Sectionals - Austin venue
50 Butterfly	SCY	24.76	AA+0.27s to AAA	2023-11-05	2023 CO ACES Fall High Point Invite venue
100 Butterfly	SCY	55.74	A+1.45s to AA	2023-11-19	2023 CO CUDA Pentathlon XXXVI venue
100 Individual Medley	SCY	56.12		2023-09-30	2023 CO CUDA vs RIP Dual venue
200 Individual Medley	SCY	1:51.32	AAAA	2025-03-30	2025 Four Corners Speedo Sectionals - Austin venue
400 Individual Medley	SCY	4:15.10	AA+2.11s to AAA	2023-11-03	2023 CO ACES Fall High Point Invite venue
50 Freestyle	LCM	25.60	AA+0.11s to AAA	2024-05-31	2024 CO Barracuda Summer Sizzler Invite venue
100 Freestyle	LCM	56.96	AA+1.37s to AAA	2024-04-27	2024 CO Steve Drozda LC Shotgun venue
200 Freestyle	LCM	2:05.84	AA+3.65s to AAA	2024-08-02	WZ LCM Senior Champs 2024 venue
400 Freestyle	LCM	4:35.82	A+3.43s to AA	2024-07-13	2024 CO NCS Gold District Championships venue
50 Backstroke	LCM	31.34	A+0.65s to AA	2024-05-31	2024 CO Barracuda Summer Sizzler Invite venue
100 Backstroke	LCM	1:06.04	A+1.35s to AA	2023-06-24	2023 CO Steve Drozda LC Shotgun venue
200 Backstroke	LCM	2:28.02	BB+0.93s to A	2023-07-15	2023 CO NCS Gold District Championships venue
50 Breaststroke	LCM	29.34	AAAA	2025-07-26	USA Swimming Futures Sacramento 2025 venue
100 Breaststroke	LCM	1:05.73	AAAA	2025-07-23	USA Swimming Futures Sacramento 2025
200 Breaststroke	LCM	2:21.58	AAAA	2024-08-02	WZ LCM Senior Champs 2024 venue
50 Butterfly	LCM	27.36	AAA+0.97s to AAAA	2025-07-24	USA Swimming Futures Sacramento 2025 venue
100 Butterfly	LCM	1:03.83	A+1.44s to AA	2024-08-01	GroupA - WZ LCM Senior Champs 2024 venue
200 Butterfly	LCM	2:41.75	B+4.26s to BB	2022-07-17	2022 CO NCS Gold District Championships venue
200 Individual Medley	LCM	2:13.46	AAA+3.47s to AAAA	2024-08-03	WZ LCM Senior Champs 2024 venue
400 Individual Medley	LCM	5:39.05	BB+20.06s to A	2021-05-23	2021 CO JH vs CUDA Dual slow pool

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	29.83	flying	200 Free Relay (leg 2)	2019-12-07	2019 CO CSI Pioneer Open
100 Breaststroke	SCY	55.68	flying	400 Medley Relay (leg 2)	2025-03-30	2025 Four Corners Speedo Sectionals - Austin
50 Breaststroke	LCM	29.26	flying	200 Medley Relay (leg 2)	2024-07-30	WZ LCM Senior Champs 2024
100 Breaststroke	LCM	1:28.62	flying	400 Medley Relay (leg 2)	2021-07-22	2021 CO CSI Senior LC State 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 17-18 · SCY

4246 points (5/6 events — incomplete)

Event	Time	Points
500 FR SCY	4:57.48	767
200 BK SCY	2:03.04	674
200 BR SCY	2:01.10	1014
200 IM SCY	1:51.32	980
400 IM SCY	4:15.10	811
200 FL SCY	—	0

IMR 17-18 · SCY

4209 points (5/5 events)

Event	Time	Points
200 FR SCY	1:44.78	874
100 BK SCY	56.22	657
100 BR SCY	55.70	1015
100 FL SCY	55.74	683
200 IM SCY	1:51.32	980

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

PR splits

100 Freestyle SCY 49.40

23.79

25.61

Front half 23.79s · back half 25.61s

200 Freestyle SCY 1:44.78

24.75

26.98

26.61

26.44

Front half 51.73s · back half 53.05s

500 Freestyle SCY 4:57.48

26.11

28.66

29.69

29.83

29.85

30.47

30.41

30.65

31.02

30.79

Front half 144.14s · back half 153.34s

100 Backstroke SCY 56.22

27.59

28.63

Front half 27.59s · back half 28.63s

200 Backstroke SCY 2:03.04

29.45

31.59

31.16

30.84

Front half 61.04s · back half 62.00s

100 Breaststroke SCY 55.70

26.33

29.37

Front half 26.33s · back half 29.37s

200 Breaststroke SCY 2:01.10

27.61

30.41

30.88

32.20

Front half 58.02s · back half 63.08s

100 Butterfly SCY 55.74

25.95

29.79

Front half 25.95s · back half 29.79s

100 Individual Medley SCY 56.12

26.19

29.93

Front half 26.19s · back half 29.93s

200 Individual Medley SCY 1:51.32

24.52

28.90

30.84

27.06

Front half 53.42s · back half 57.90s

400 Individual Medley SCY 4:15.10

27.85

30.83

33.53

34.30

34.16

35.48

29.47

29.48

Front half 126.51s · back half 128.59s

100 Freestyle LCM 56.96

27.36

29.60

Front half 27.36s · back half 29.60s

200 Freestyle LCM 2:05.84

29.35

31.89

32.09

32.51

Front half 61.24s · back half 64.60s

400 Freestyle LCM 4:35.82

30.98

35.37

35.44

36.07

34.78

35.28

34.19

33.71

Front half 137.86s · back half 137.96s

100 Backstroke LCM 1:06.04

32.97

33.07

Front half 32.97s · back half 33.07s

200 Backstroke LCM 2:28.02

36.27

37.05

39.26

35.44

Front half 73.32s · back half 74.70s

100 Breaststroke LCM 1:05.73 split/total mismatch

30.97

3.79

Front half 30.97s · back half 34.76s

200 Breaststroke LCM 2:21.58

32.27

35.69

35.79

37.83

Front half 67.96s · back half 73.62s

100 Butterfly LCM 1:03.83

29.38

34.45

Front half 29.38s · back half 34.45s

200 Butterfly LCM 2:41.75

37.18

40.08

44.49

40.00

Front half 77.26s · back half 84.49s

200 Individual Medley LCM 2:13.46

28.95

35.23

36.84

32.44

Front half 64.18s · back half 69.28s

400 Individual Medley LCM 5:39.05

39.30

44.41

42.85

43.05

44.68

47.17

40.01

37.58

Front half 169.61s · back half 169.44s

Progression

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

25 Freestyle SCY 10.20 1 swim

50 Freestyle SCY 22.05 28 swims

100 Freestyle SCY 49.40 26 swims

200 Freestyle SCY 1:44.78 11 swims

500 Freestyle SCY 4:57.48 2 swims

50 Backstroke SCY 34.32 5 swims

100 Backstroke SCY 56.22 14 swims

200 Backstroke SCY 2:03.04 6 swims

50 Breaststroke SCY 27.59 17 swims

100 Breaststroke SCY 55.70 47 swims

200 Breaststroke SCY 2:01.10 24 swims

50 Butterfly SCY 24.76 6 swims

100 Butterfly SCY 55.74 16 swims

100 Individual Medley SCY 56.12 11 swims

200 Individual Medley SCY 1:51.32 32 swims

400 Individual Medley SCY 4:15.10 5 swims

50 Freestyle LCM 25.60 21 swims

100 Freestyle LCM 56.96 17 swims

200 Freestyle LCM 2:05.84 10 swims

400 Freestyle LCM 4:35.82 3 swims

50 Backstroke LCM 31.34 3 swims

100 Backstroke LCM 1:06.04 8 swims

200 Backstroke LCM 2:28.02 3 swims

50 Breaststroke LCM 29.34 13 swims

100 Breaststroke LCM 1:05.73 24 swims

200 Breaststroke LCM 2:21.58 25 swims

50 Butterfly LCM 27.36 5 swims

100 Butterfly LCM 1:03.83 10 swims

200 Butterfly LCM 2:41.75 1 swim

200 Individual Medley LCM 2:13.46 18 swims

400 Individual Medley LCM 5:39.05 1 swim