swimstats

Kai Yamamoto

Mage 14HIIEMTPCPNPNPRO

227 plausible swims · 38 meets · 2024-11-02 → 2026-08-08

Personal records

EventCourseBest CutDateMeet
50 Freestyle SCY 24.18 AA+0.69s to AAA·+0.99s to Sectionals 2026-01-16 2026 PN VAST 49th Annual Washington Open- APPvenue
100 Freestyle SCY 52.44 AA+1.25s to AAA·+1.45s to Sectionals 2026-03-21 2026 NW Region Age Group Champs- Approvedvenue
200 Freestyle SCY 1:50.23 AAA+3.34s to AAAA·Sectionals ✓+8.64s to Futures 2026-03-19 2026 Northwest Region Age Group Championships
500 Freestyle SCY 5:26.12 A+9.03s to AA·+23.43s to Sectionals 2026-02-27 2026 PN February AGI, Division 2- Approvedvenue
1000 Freestyle SCY 11:38.65 BB+11.66s to A·+64.66s to Sectionals 2026-03-06 2026 PN PRO March Last Chance Intra- Apprivedvenue
1650 Freestyle SCY 19:20.69 BB+9.30s to A·+103.80s to Sectionals 2026-03-06 2026 PN PRO March Last Chance Intra- Apprivedvenue
50 Backstroke SCY 26.02 AAA+0.73s to AAAA·+2.33s to Futures 2025-12-15 1663581
100 Backstroke SCY 54.98 AAA+1.49s to AAAA·Sectionals ✓+3.49s to Futures 2026-03-20 2026 NW Region Age Group Champs- Approvedvenue
200 Backstroke SCY 2:01.67 AAA+5.28s to AAAA·+0.38s to Sectionals 2026-03-22 2026 NW Region Age Group Champs- Approvedvenue
50 Breaststroke SCY 31.89 A+0.20s to AA·+5.60s to Futures 2026-05-31 2026 PN Pro Summer Pentathlon- Approvedvenue
100 Breaststroke SCY 1:23.32 +2.73s to B·+20.13s to Sectionals 2025-02-01 2025 PN EAST February Invitationalvenue
200 Breaststroke SCY 2:43.35 B+0.56s to BB·+26.06s to Sectionals 2026-01-25 2026 PN Pro January Intrasquad- Approvedvenue
50 Butterfly SCY 26.17 AA+0.08s to AAA·+3.28s to Futures 2026-05-31 2026 PN Pro Summer Pentathlon- Approvedvenue
100 Butterfly SCY 58.03 A+0.14s to AA·+2.84s to Sectionals 2026-03-22 2026 NW Region Age Group Champs- Approvedvenue
200 Butterfly SCY 2:22.16 BB+7.67s to A·+18.77s to Sectionals 2025-10-05 2025 PN SMAC Fall Kick-Off Invitationalvenue
100 Individual Medley SCY 1:01.09 2026-05-31 2026 PN Pro Summer Pentathlon- Approvedvenue
200 Individual Medley SCY 2:06.99 AA+2.90s to AAA·+3.00s to Sectionals 2026-06-21 2026 PN PRO June Summer Intrasquadvenue
400 Individual Medley SCY 4:33.08 AA+7.69s to AAA·+8.39s to Sectionals 2026-06-20 2026 PN PRO June Summer Intrasquadvenue
50 Freestyle LCM 27.33 AA+0.44s to AAA·+0.34s to Sectionals 2026-07-19 2026 PN 13 & Over LC Championships- Approvedfast pool
100 Freestyle LCM 1:00.81 AA+1.82s to AAA·+1.82s to Sectionals 2026-05-17 2026 PN IST Sockeye Springtime Madness App.venue
200 Freestyle LCM 2:16.50 A+1.81s to AA·+7.81s to Sectionals 2026-06-07 2026 PN VAST Summer Sprint & Dist. - Approvedvenue
50 Backstroke LCM 28.82 AAAA·+0.93s to Futures 2026-07-18 2026 PN 13 & Over LC Championships- Approvedfast pool
100 Backstroke LCM 1:02.37 AAAA·Sectionals ✓+1.78s to Futures 2026-07-17 2026 PN 13 & Over LC Championships- Approvedfast pool
200 Backstroke LCM 2:19.16 AAA+2.67s to AAAA·Sectionals ✓+7.27s to Futures 2026-07-16 2026 PN 13 & Over LC Championships- Approvedfast pool
50 Breaststroke LCM 41.87 B+0.88s to BB·+10.98s to Futures 2025-06-22 2025 SWAT Summer Solsticevenue
50 Butterfly LCM 28.15 AAA+0.16s to AAAA·+1.86s to Futures 2026-07-16 2026 PN 13 & Over LC Championships- Approvedfast pool
100 Butterfly LCM 1:02.95 AAA+2.66s to AAAA·Sectionals ✓+4.96s to Futures 2026-08-06 2026 Western Zone Age Group Championshipsvenue
200 Individual Medley LCM 2:29.61 AA+5.82s to AAA·+4.92s to Sectionals 2026-06-06 2026 PN VAST Summer Sprint & Dist. - Approvedvenue

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 24.00 flat 200 Free Relay 2026-03-21 2026 NW Region Age Group Champs- Approved
50 Freestyle SCY 25.40 flying 200 Free Relay (leg 4) 2025-02-01 2025 PN EAST February Invitational
100 Freestyle SCY 53.48 flat 400 Free Relay 2025-12-14 2025 PN 14&Under Short Course Champs-Approved
100 Freestyle SCY 51.46 flying 400 Free Relay (leg 4) 2026-03-19 2026 NW Region Age Group Champs- Approved
100 Freestyle SCY 51.48 flying 400 Medley Relay (leg 4) 2026-03-21 2026 NW Region Age Group Champs- Approved
50 Backstroke SCY 25.96 flat 200 Medley Relay 2026-01-17 2026 PN VAST 49th Annual Washington Open- APP
50 Freestyle LCM 28.56 flat 200 Free Relay 2025-07-18 2025 PN 13&O LC Senior Championships
50 Freestyle LCM 26.87 flying 200 Free Relay (leg 4) 2026-07-18 2026 PN 13 & Over LC Championships- Approved
50 Freestyle LCM 27.20 flying 200 Medley Relay (leg 4) 2026-07-18 2026 PN 13 & Over LC Championships- Approved
100 Freestyle LCM 1:00.03 flat 400 Free Relay 2026-07-19 2026 PN 13 & Over LC Championships- Approved
100 Freestyle LCM 1:04.17 flying 400 Free Relay (leg 4) 2025-06-22 2025 SWAT Summer Solstice
50 Backstroke LCM 29.92 flat 200 Medley Relay 2026-08-06 2026 Western Zone Age Group Championships
100 Backstroke LCM 1:04.75 flat 400 Medley Relay 2026-07-17 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 · SCY

4256 points (6/6 events)

EventTime Points
500 FR SCY 5:26.12 698
200 BK SCY 2:01.67 866
200 BR SCY 2:43.35 518
200 FL SCY 2:22.16 565
200 IM SCY 2:06.99 812
400 IM SCY 4:33.08 797

IMR 13-14 · SCY

3780 points (5/5 events)

EventTime Points
200 FR SCY 1:50.23 911
100 BK SCY 54.98 920
100 BR SCY 1:23.32 380
100 FL SCY 58.03 757
200 IM SCY 2:06.99 812

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

PR splits

100 Freestyle SCY 52.44 RT 0.76s

25.19
27.25

Front half 25.19s · back half 27.25s

500 Freestyle SCY 5:26.12

28.42
31.89
32.65
33.27
33.92
34.09
34.47
33.87
31.74
31.80

Front half 160.15s · back half 165.97s

1650 Freestyle SCY 19:20.69

28.88
32.66
33.99
34.02
35.26
35.42
34.74
35.40
34.81
34.64
29.10
41.03
35.45
36.26
35.53
36.30
36.70
36.64
35.45
36.37
36.00
37.05
34.97
36.70
35.96
36.23
36.39
36.68
35.19
35.83
33.92
34.84
32.28

50 Backstroke SCY 26.02 split/total mismatch

304.02
34.62
34.68
34.63

Front half 338.64s · back half -312.62s

100 Backstroke SCY 54.98 RT 0.76s

26.72
28.26

Front half 26.72s · back half 28.26s

200 Backstroke SCY 2:01.67 RT 1.04s

28.18
30.92
31.48
31.09

Front half 59.10s · back half 62.57s

100 Breaststroke SCY 1:23.32

38.56
44.76

Front half 38.56s · back half 44.76s

200 Breaststroke SCY 2:43.35

35.66
41.22
43.15
43.32

Front half 76.88s · back half 86.47s

100 Butterfly SCY 58.03 RT 0.69s

26.97
31.06

Front half 26.97s · back half 31.06s

200 Butterfly SCY 2:22.16

29.38
35.66
38.66
38.46

Front half 65.04s · back half 77.12s

200 Individual Medley SCY 2:06.99

26.49
31.87
38.94
29.69

Front half 58.36s · back half 68.63s

400 Individual Medley SCY 4:33.08

27.52
30.97
34.85
34.97
40.92
41.02
32.17
30.66

Front half 128.31s · back half 144.77s

200 Freestyle LCM 2:16.50

65.58
70.92

Front half 65.58s · back half 70.92s

100 Backstroke LCM 1:02.37 · 466.8 min after 100 Backstroke

30.05
32.32

Front half 30.05s · back half 32.32s

200 Backstroke LCM 2:19.16 · 10.0 min after 50 Butterfly

32.00
35.62
36.51
35.03

Front half 67.62s · back half 71.54s

200 Individual Medley LCM 2:29.61 RT 0.69s· 22.5 min after 50 Butterfly

69.48
80.13

Front half 69.48s · back half 80.13s

Reaction time

fastest 0.37s average 0.724s slowest 1.04s 54 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 24.18 13 swims
100 Freestyle SCY 52.44 20 swims
200 Freestyle SCY 1:50.23 7 swims
500 Freestyle SCY 5:26.12 4 swims
1000 Freestyle SCY 11:38.65 1 swim
1650 Freestyle SCY 19:20.69 1 swim
50 Backstroke SCY 26.02 14 swims
100 Backstroke SCY 54.98 24 swims
200 Backstroke SCY 2:01.67 13 swims
50 Breaststroke SCY 31.89 3 swims
100 Breaststroke SCY 1:23.32 2 swims
200 Breaststroke SCY 2:43.35 1 swim
50 Butterfly SCY 26.17 6 swims
100 Butterfly SCY 58.03 12 swims
200 Butterfly SCY 2:22.16 2 swims
100 Individual Medley SCY 1:01.09 6 swims
200 Individual Medley SCY 2:06.99 7 swims
400 Individual Medley SCY 4:33.08 2 swims
50 Freestyle LCM 27.33 13 swims
100 Freestyle LCM 1:00.81 3 swims
200 Freestyle LCM 2:16.50 3 swims
50 Backstroke LCM 28.82 17 swims
100 Backstroke LCM 1:02.37 17 swims
200 Backstroke LCM 2:19.16 12 swims
50 Breaststroke LCM 41.87 1 swim
50 Butterfly LCM 28.15 4 swims
100 Butterfly LCM 1:02.95 13 swims
200 Individual Medley LCM 2:29.61 2 swims