swimstats

Isshin Yokoyama

Mage 14MTPNWAVE

243 plausible swims · 38 meets · 2024-01-27 → 2026-08-01

Personal records

EventCourseBest CutDateMeet
50 Freestyle SCY 24.29 AA+0.80s to AAA·+1.10s to Sectionals 2026-08-01 2026 PN WAVE Summer Pentathlon Invite- Appr.venue
100 Freestyle SCY 54.76 A+1.27s to AA·+3.77s to Sectionals 2025-11-23 2025 PN Nov. AGI, Division 2 (SMAC)venue
200 Freestyle SCY 2:04.87 BB+2.68s to A·+13.08s to Sectionals 2025-12-14 2025 PN 14&Under Short Course Champs-Approvedvenue
500 Freestyle SCY 5:40.21 BB+9.42s to A·+37.52s to Sectionals 2026-02-27 2026 PN February AGI, Division 2- Approvedvenue
1000 Freestyle SCY 12:27.25 B+2.96s to BB·+113.26s to Sectionals 2025-02-07 2025 PN Wave February Distance Meetvenue
1650 Freestyle SCY 20:31.52 BB+80.13s to A·+174.63s to Sectionals 2025-02-07 2025 PN Wave February Distance Meetvenue
50 Backstroke SCY 29.11 BB+0.22s to A·+5.42s to Futures 2026-03-29 2026 PN Spring Showdown, Div. 4- Approvedvenue
100 Backstroke SCY 1:04.88 BB+3.69s to A·+9.39s to Sectionals 2025-02-08 2025 PN SSCD Winter Openvenue
200 Backstroke SCY 2:19.46 BB+6.47s to A·+18.17s to Sectionals 2025-10-04 2025 PN Cascade Fall Classicvenue
50 Breaststroke SCY 30.76 AA+0.47s to AAA·+4.47s to Futures 2026-08-01 2026 PN WAVE Summer Pentathlon Invite- Appr.venue
100 Breaststroke SCY 1:11.79 BB+2.70s to A·+8.60s to Sectionals 2026-03-01 2026 PN February AGI, Division 2- Approvedvenue
200 Breaststroke SCY 2:40.63 BB+10.34s to A·+23.34s to Sectionals 2025-01-25 2025 PN Wave Winter Invitationalvenue
50 Butterfly SCY 26.42 AA+0.33s to AAA·+3.53s to Futures 2026-08-01 2026 PN WAVE Summer Pentathlon Invite- Appr.venue
100 Butterfly SCY 1:01.95 BB+1.56s to A·+6.76s to Sectionals 2026-03-29 2026 PN Spring Showdown, Div. 4- Approvedvenue
200 Butterfly SCY 2:40.83 +3.94s to B·+37.44s to Sectionals 2025-01-26 2025 PN Wave Winter Invitationalvenue
100 Individual Medley SCY 1:01.72 2026-08-01 2026 PN WAVE Summer Pentathlon Invite- Appr.venue
200 Individual Medley SCY 2:20.41 BB+5.02s to A·+16.42s to Sectionals 2025-10-04 2025 PN Cascade Fall Classicvenue
400 Individual Medley SCY 5:09.13 BB+19.64s to A·+44.44s to Sectionals 2025-02-21 2025 PN SRST Champs Qualifiervenue
50 Freestyle LCM 27.57 AA+0.68s to AAA·+0.58s to Sectionals 2026-07-19 2026 PN 13 & Over LC Championships- Approvedfast pool
100 Freestyle LCM 1:02.65 A+0.96s to AA·+3.66s to Sectionals 2026-06-06 2026 PN VAST Summer Sprint & Dist. - Approvedvenue
200 Freestyle LCM 2:22.60 BB+2.01s to A·+13.91s to Sectionals 2026-06-07 2026 PN VAST Summer Sprint & Dist. - Approvedvenue
400 Freestyle LCM 4:59.79 A+12.30s to AA·+25.40s to Sectionals 2026-07-18 2026 PN 13 & Over LC Championships- Approvedfast pool
1500 Freestyle LCM 21:14.75 BB+82.16s to A·+183.66s to Sectionals 2025-05-02 2025 PN BC May Flowersvenue
50 Backstroke LCM 33.81 A+1.32s to AA·+5.92s to Futures 2026-07-18 2026 PN 13 & Over LC Championships- Approvedfast pool
100 Backstroke LCM 1:15.31 BB+3.62s to A·+10.12s to Sectionals 2025-05-31 2025 PN VAST Summer Sprints and Distance Chalvenue
200 Backstroke LCM 2:57.57 B+8.58s to BB·+36.08s to Sectionals 2024-05-05 2024 PN BC May Flowersvenue
50 Breaststroke LCM 34.55 AAA+1.46s to AAAA·+3.66s to Futures 2026-07-17 2026 PN 13 & Over LC Championships- Approvedfast pool
100 Breaststroke LCM 1:18.12 A+0.93s to AA·+4.42s to Sectionals 2026-07-18 2026 PN 13 & Over LC Championships- Approvedfast pool
200 Breaststroke LCM 3:13.47 B+4.08s to BB·+32.59s to Sectionals 2025-06-21 2025 MT MAC 44th Annual Firecracker Classicvenue
50 Butterfly LCM 30.03 AA+0.74s to AAA·+3.74s to Futures 2026-07-16 2026 PN 13 & Over LC Championships- Approvedfast pool
100 Butterfly LCM 1:13.64 BB+4.75s to A·+10.55s to Sectionals 2026-05-02 2026 PN BC May Flowers - Approvedvenue
200 Butterfly LCM 2:33.83 A+5.94s to AA·+12.74s to Sectionals 2025-01-01 2025 MT MAC 44th Annual Firecracker Classic
200 Individual Medley LCM 2:41.87 BB+4.98s to A·+17.18s to Sectionals 2025-05-31 2025 PN VAST Summer Sprints and Distance Chalvenue
400 Individual Medley LCM 5:52.36 BB+16.87s to A·+44.57s to Sectionals 2025-06-01 2025 PN VAST Summer Sprints and Distance Chalvenue

Cuts are USA Swimming single-age motivational standards (B → AAAA) at age 14.

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.

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

LegCourseTime StartRelayDateMeet
50 Freestyle SCY 24.43 flat 200 Free Relay 2026-03-21 2026 NW Region Age Group Champs- Approved
50 Freestyle SCY 24.44 flying 200 Medley Relay (leg 4) 2025-12-12 2025 PN 14&Under Short Course Champs-Approved
50 Freestyle SCY 23.96 flying 200 Free Relay (leg 2) 2025-12-13 2025 PN 14&Under Short Course Champs-Approved
100 Freestyle SCY 53.66 flat 400 Free Relay 2026-03-19 2026 NW Region Age Group Champs- Approved
100 Freestyle SCY 54.16 flying 400 Medley Relay (leg 4) 2025-12-13 2025 PN 14&Under Short Course Champs-Approved
100 Freestyle SCY 54.51 flying 400 Free Relay (leg 4) 2025-12-14 2025 PN 14&Under Short Course Champs-Approved
50 Butterfly SCY 26.17 flying 200 Medley Relay (leg 3) 2026-03-20 2026 NW Region Age Group Champs- Approved
100 Butterfly SCY 1:07.98 flying 400 Medley Relay (leg 3) 2024-12-14 2024 PN 14 & Under SC Champs
50 Freestyle LCM 28.62 flat 200 Free Relay 2025-07-18 2025 PN 13&O LC Senior Championships
50 Freestyle LCM 28.88 flying 200 Medley Relay (leg 4) 2025-07-19 2025 PN 13&O LC Senior Championships
50 Freestyle LCM 26.85 flying 200 Free Relay (leg 3) 2026-07-18 2026 PN 13 & Over LC Championships- Approved
100 Freestyle LCM 1:07.97 flat 400 Free Relay 2024-07-25 2024 PN LC 14&U Champs
100 Freestyle LCM 1:00.96 flying 400 Medley Relay (leg 4) 2026-07-17 2026 PN 13 & Over LC Championships- Approved
100 Freestyle LCM 1:01.93 flying 400 Free Relay (leg 3) 2026-07-19 2026 PN 13 & Over LC Championships- Approved
50 Butterfly LCM 29.15 flying 200 Medley Relay (leg 3) 2026-07-18 2026 PN 13 & Over LC Championships- Approved

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 · LCM

3453 points (6/6 events)

EventTime Points
400 FR LCM 4:59.79 662
200 BK LCM 2:57.57 452
200 BR LCM 3:13.47 485
200 FL LCM 2:33.83 672
200 IM LCM 2:41.87 608
400 IM LCM 5:52.36 574

IMR 13-14 · LCM

3104 points (5/5 events)

EventTime Points
200 FR LCM 2:22.60 641
100 BK LCM 1:15.31 579
100 BR LCM 1:18.12 728
100 FL LCM 1:13.64 548
200 IM LCM 2:41.87 608

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

PR splits

100 Freestyle SCY 54.76

26.24
28.52

Front half 26.24s · back half 28.52s

200 Freestyle SCY 2:04.87 RT 0.45s

27.40
32.36
33.11
32.00

Front half 59.76s · back half 65.11s

500 Freestyle SCY 5:40.21

28.87
32.53
34.20
34.88
35.01
35.17
35.10
35.04
35.21
34.20

Front half 165.49s · back half 174.72s

1650 Freestyle SCY 20:31.52

31.56
35.23
36.99
37.21
37.30
37.89
38.30
38.33
37.57
37.67
37.95
38.05
38.54
37.69
37.90
38.15
37.51
38.13
37.62
37.66
37.53
37.97
37.76
37.38
37.46
37.73
36.98
37.35
38.21
37.23
37.62
36.07
34.98

100 Backstroke SCY 1:04.88

31.62
33.26

Front half 31.62s · back half 33.26s

200 Backstroke SCY 2:19.46

32.50
35.24
36.04
35.68

Front half 67.74s · back half 71.72s

100 Breaststroke SCY 1:11.79

33.45
38.34

Front half 33.45s · back half 38.34s

200 Breaststroke SCY 2:40.63

36.77
40.96
41.43
41.47

Front half 77.73s · back half 82.90s

100 Butterfly SCY 1:01.95

28.61
33.34

Front half 28.61s · back half 33.34s

200 Butterfly SCY 2:40.83

34.39
41.84
43.62
40.98

Front half 76.23s · back half 84.60s

100 Individual Medley SCY 1:01.72

28.99
32.73

Front half 28.99s · back half 32.73s

200 Individual Medley SCY 2:20.41

29.18
35.86
41.76
33.61

Front half 65.04s · back half 75.37s

400 Individual Medley SCY 5:09.13

32.88
40.75
38.66
38.78
43.98
44.00
35.41
34.67

Front half 151.07s · back half 158.06s

200 Freestyle LCM 2:22.60 RT 0.67s

67.92
74.68

Front half 67.92s · back half 74.68s

400 Freestyle LCM 4:59.79 RT 0.69s· 24.2 min after 200 Individual Medley

69.42
76.70
153.67

1500 Freestyle LCM 21:14.75 RT 0.67s

79.79
86.11
85.48
86.75
87.32
86.50
86.36
85.92
85.17
85.51
85.02
83.93
85.87
83.73
81.29

200 Backstroke LCM 2:57.57 RT 0.69s

88.48
89.09

Front half 88.48s · back half 89.09s

200 Breaststroke LCM 3:13.47

42.30
49.47
51.10
50.60

Front half 91.77s · back half 101.70s

200 Individual Medley LCM 2:41.87 RT 0.65s

77.68
84.19

Front half 77.68s · back half 84.19s

400 Individual Medley LCM 5:52.36 RT 0.64s

79.39
90.37
101.51
81.09

Front half 169.76s · back half 182.60s

Reaction time

fastest 0.34s average 0.653s slowest 0.96s 43 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 24.29 18 swims
100 Freestyle SCY 54.76 17 swims
200 Freestyle SCY 2:04.87 8 swims
500 Freestyle SCY 5:40.21 2 swims
1000 Freestyle SCY 12:27.25 1 swim
1650 Freestyle SCY 20:31.52 1 swim
50 Backstroke SCY 29.11 9 swims
100 Backstroke SCY 1:04.88 10 swims
200 Backstroke SCY 2:19.46 6 swims
50 Breaststroke SCY 30.76 8 swims
100 Breaststroke SCY 1:11.79 15 swims
200 Breaststroke SCY 2:40.63 8 swims
50 Butterfly SCY 26.42 16 swims
100 Butterfly SCY 1:01.95 10 swims
200 Butterfly SCY 2:40.83 6 swims
100 Individual Medley SCY 1:01.72 9 swims
200 Individual Medley SCY 2:20.41 6 swims
400 Individual Medley SCY 5:09.13 3 swims
50 Freestyle LCM 27.57 12 swims
100 Freestyle LCM 1:02.65 8 swims
200 Freestyle LCM 2:22.60 5 swims
400 Freestyle LCM 4:59.79 4 swims
1500 Freestyle LCM 21:14.75 1 swim
50 Backstroke LCM 33.81 7 swims
100 Backstroke LCM 1:15.31 6 swims
200 Backstroke LCM 2:57.57 1 swim
50 Breaststroke LCM 34.55 9 swims
100 Breaststroke LCM 1:18.12 6 swims
200 Breaststroke LCM 3:13.47 4 swims
50 Butterfly LCM 30.03 8 swims
100 Butterfly LCM 1:13.64 5 swims
200 Butterfly LCM 2:33.83 3 swims
200 Individual Medley LCM 2:41.87 7 swims
400 Individual Medley LCM 5:52.36 3 swims