swimstats

Mason Nishimura

Mage 15HIMTKSC

320 plausible swims · 59 meets · 2022-02-25 → 2026-11-06

Personal records

EventCourseBest CutDateMeet
50 Freestyle SCY 24.55 A+0.86s to AA·+1.36s to Sectionals 2026-10-25 2026 HI 26th Annual Bill Smith Invitational -venue
100 Freestyle SCY 53.71 A+1.72s to AA·+2.72s to Sectionals 2026-10-03 2026 HI Al Minn Invitationalvenue
200 Freestyle SCY 1:58.82 BB+0.23s to A·+7.03s to Sectionals 2026-10-25 2026 HI 26th Annual Bill Smith Invitational -venue
500 Freestyle SCY 5:30.86 BB+8.27s to A·+28.17s to Sectionals 2026-10-10 Senior Distance Pentathlonvenue
1000 Freestyle SCY 12:23.54 B+15.85s to BB·+109.55s to Sectionals 2024-12-07 2024 44th Annual Ken Suenaga Invitationsl
1650 Freestyle SCY 18:42.71 BB+1.82s to A·+65.82s to Sectionals 2026-10-31 Hawaiian Swimming Magnificant Milevenue
50 Backstroke SCY 29.77 BB+1.78s to A·+6.08s to Futures 2026-11-06 UH Knockout 50s meetvenue
100 Backstroke SCY 1:05.29 B+0.80s to BB·+9.80s to Sectionals 2026-02-15 OSL Senior B SCY Meetvenue
200 Backstroke SCY 2:21.00 B+0.01s to BB·+19.71s to Sectionals 2026-10-25 2026 HI 26th Annual Bill Smith Invitational -venue
50 Breaststroke SCY 36.92 B+2.13s to BB·+10.63s to Futures 2025-01-13 1592796
100 Breaststroke SCY 1:12.07 BB+4.68s to A·+8.88s to Sectionals 2026-10-25 2026 HI 26th Annual Bill Smith Invitational -venue
200 Breaststroke SCY 2:41.45 B+2.26s to BB·+24.16s to Sectionals 2026-10-24 2026 HI 26th Annual Bill Smith Invitational -venue
50 Butterfly SCY 27.13 A+0.54s to AA·+4.24s to Futures 2026-11-06 UH Knockout 50s meetvenue
100 Butterfly SCY 59.41 BB+0.52s to A·+4.22s to Sectionals 2026-10-04 2026 HI Al Minn Invitationalvenue
200 Butterfly SCY 2:15.76 BB+3.77s to A·+12.37s to Sectionals 2026-10-24 2026 HI 26th Annual Bill Smith Invitational -venue
100 Individual Medley SCY 1:04.77 2026-09-11 Senior Pentathlonvenue
200 Individual Medley SCY 2:16.15 BB+3.96s to A·+12.16s to Sectionals 2026-10-24 2026 HI 26th Annual Bill Smith Invitational -venue
400 Individual Medley SCY 4:56.96 BB+12.77s to A·+32.27s to Sectionals 2026-10-10 Senior Distance Pentathlonvenue
50 Freestyle LCM 27.34 AA+1.15s to AAA·+0.35s to Sectionals 2026-07-03 2026 Keo Nakama Swim Meetvenue
100 Freestyle LCM 1:01.30 A+1.61s to AA·+2.31s to Sectionals 2026-07-05 2026 Keo Nakama Swim Meetvenue
200 Freestyle LCM 2:19.02 BB+1.83s to A·+10.33s to Sectionals 2026-06-07 2026 15th Annual Wada Rainbow Invitational -venue
400 Freestyle LCM 5:09.35 BB+17.26s to A·+34.96s to Sectionals 2026-07-03 2026 Keo Nakama Swim Meetvenue
800 Freestyle LCM 11:29.89 B+35.60s to BB·+119.90s to Sectionals 2024-01-01 1508169
50 Backstroke LCM 40.11 +1.42s to B·+12.22s to Futures 2023-07-02 2023 Keo Nakama Swim Meetvenue
100 Backstroke LCM 1:18.66 B+3.27s to BB·+13.47s to Sectionals 2025-06-07 2025 14th Annual Wada Rainbow Invitational
200 Backstroke LCM 2:44.91 B+1.22s to BB·+23.42s to Sectionals 2025-07-17 2025 HI Age Group LCM Championship
50 Breaststroke LCM 45.94 +3.35s to B·+15.05s to Futures 2023-06-03 2023 HI 12th Annual Rainbow Aquatics Invitevenue
100 Breaststroke LCM 1:30.24 B+5.35s to BB·+16.54s to Sectionals 2026-05-23 OSL A+ LCM Meetvenue
200 Breaststroke LCM 3:11.87 B+6.18s to BB·+30.99s to Sectionals 2026-06-06 2026 15th Annual Wada Rainbow Invitational -venue
50 Butterfly LCM 29.92 AA+1.23s to AAA·+3.63s to Futures 2025-07-17 2025 HI Age Group LCM Championship
100 Butterfly LCM 1:06.86 A+2.37s to AA·+3.77s to Sectionals 2026-07-11 2026 Iolani Summer Classicvenue
200 Butterfly LCM 2:41.21 BB+10.62s to A·+20.12s to Sectionals 2026-07-05 2026 Keo Nakama Swim Meetvenue
200 Individual Medley LCM 2:38.02 BB+4.83s to A·+13.33s to Sectionals 2026-07-12 2026 Iolani Summer Classicvenue
400 Individual Medley LCM 5:40.76 BB+11.47s to A·+32.97s to Sectionals 2026-07-10 2026 Iolani Summer Classicvenue

Cuts are USA Swimming single-age motivational standards (B → AAAA) at age 15.

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.

Fastest relay legs

LegCourseTime StartRelayDateMeet
50 Freestyle SCY 24.43 flat 200 Free Relay 2026-03-01 2026 HI Hawaiian Swimming SCY AGChamps
50 Freestyle SCY 24.85 flying 200 Free Relay (leg 3) 2026-10-24 2026 HI 26th Annual Bill Smith Invitational -
50 Freestyle SCY 24.67 flying 200 Medley Relay (leg 4) 2025-03-22 Southwest Age Group Regional 2025
100 Freestyle SCY 55.46 flying 400 Medley Relay (leg 4) 2025-03-21 Southwest Age Group Regional 2025
100 Freestyle SCY 55.46 flying 400 Free Relay (leg 2) 2025-03-23 Southwest Age Group Regional 2025
100 Butterfly SCY 1:01.03 flying 400 Medley Relay (leg 3) 2026-02-28 2026 HI Hawaiian Swimming SCY AGChamps

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 15-16 · SCY

3215 points (6/6 events)

EventTime Points
500 FR SCY 5:30.86 582
200 BK SCY 2:21.00 483
200 BR SCY 2:41.45 467
200 FL SCY 2:15.76 571
200 IM SCY 2:16.15 574
400 IM SCY 4:56.96 538

IMR 15-16 · SCY

2795 points (5/5 events)

EventTime Points
200 FR SCY 1:58.82 632
100 BK SCY 1:05.29 467
100 BR SCY 1:12.07 512
100 FL SCY 59.41 610
200 IM SCY 2:16.15 574

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

PR splits

100 Freestyle SCY 53.71

26.19
27.52

Front half 26.19s · back half 27.52s

200 Freestyle SCY 1:58.82

27.79
29.98
30.88
30.17

Front half 57.77s · back half 61.05s

500 Freestyle SCY 5:30.86

28.24
30.66
32.04
33.10
34.45
34.53
34.60
35.30
34.66
33.28

Front half 158.49s · back half 172.37s

1650 Freestyle SCY 18:42.71

29.28
31.95
32.74
33.15
33.68
33.70
34.09
33.94
34.37
34.29
35.28
34.65
34.93
35.28
35.22
34.65
34.46
34.60
35.17
34.82
34.20
34.19
34.53
34.16
34.47
35.13
34.27
34.84
35.21
34.26
34.10
32.26
30.84

100 Backstroke SCY 1:05.29

31.55
33.74

Front half 31.55s · back half 33.74s

200 Backstroke SCY 2:21.00

33.15
35.56
37.17
35.12

Front half 68.71s · back half 72.29s

100 Breaststroke SCY 1:12.07

34.14
37.93

Front half 34.14s · back half 37.93s

200 Breaststroke SCY 2:41.45

37.02
40.97
43.05
40.41

Front half 77.99s · back half 83.46s

100 Butterfly SCY 59.41

28.10
31.31

Front half 28.10s · back half 31.31s

200 Butterfly SCY 2:15.76

29.89
33.74
35.59
36.54

Front half 63.63s · back half 72.13s

100 Individual Medley SCY 1:04.77

30.90
33.87

Front half 30.90s · back half 33.87s

200 Individual Medley SCY 2:16.15

29.45
34.69
40.83
31.18

Front half 64.14s · back half 72.01s

400 Individual Medley SCY 4:56.96

29.22
34.58
38.87
37.40
45.99
43.92
34.15
32.83

Front half 140.07s · back half 156.89s

200 Freestyle LCM 2:19.02

66.12
72.90

Front half 66.12s · back half 72.90s

400 Freestyle LCM 5:09.35

69.67
78.76
81.07
79.85

Front half 148.43s · back half 160.92s

200 Breaststroke LCM 3:11.87

93.10
98.77

Front half 93.10s · back half 98.77s

100 Butterfly LCM 1:06.86 RT 0.60s

31.30
35.56

Front half 31.30s · back half 35.56s

200 Butterfly LCM 2:41.21

74.51
86.70

Front half 74.51s · back half 86.70s

Reaction time

fastest 0.60s average 0.660s slowest 0.72s 2 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.

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.

50 Freestyle SCY 24.55 26 swims
100 Freestyle SCY 53.71 26 swims
200 Freestyle SCY 1:58.82 17 swims
500 Freestyle SCY 5:30.86 7 swims
1000 Freestyle SCY 12:23.54 1 swim
1650 Freestyle SCY 18:42.71 1 swim
50 Backstroke SCY 29.77 6 swims
100 Backstroke SCY 1:05.29 15 swims
200 Backstroke SCY 2:21.00 7 swims
50 Breaststroke SCY 36.92 8 swims
100 Breaststroke SCY 1:12.07 13 swims
200 Breaststroke SCY 2:41.45 7 swims
50 Butterfly SCY 27.13 13 swims
100 Butterfly SCY 59.41 18 swims
200 Butterfly SCY 2:15.76 10 swims
100 Individual Medley SCY 1:04.77 7 swims
200 Individual Medley SCY 2:16.15 13 swims
400 Individual Medley SCY 4:56.96 5 swims
50 Freestyle LCM 27.34 14 swims
100 Freestyle LCM 1:01.30 12 swims
200 Freestyle LCM 2:19.02 15 swims
400 Freestyle LCM 5:09.35 7 swims
800 Freestyle LCM 11:29.89 1 swim
50 Backstroke LCM 40.11 5 swims
100 Backstroke LCM 1:18.66 6 swims
200 Backstroke LCM 2:44.91 8 swims
50 Breaststroke LCM 45.94 1 swim
100 Breaststroke LCM 1:30.24 3 swims
200 Breaststroke LCM 3:11.87 2 swims
50 Butterfly LCM 29.92 9 swims
100 Butterfly LCM 1:06.86 13 swims
200 Butterfly LCM 2:41.21 10 swims
200 Individual Medley LCM 2:38.02 11 swims
400 Individual Medley LCM 5:40.76 2 swims