Kaisei Ishikubo

Mage 15CCORPCSIDACA

76 plausible swims · 11 meets · 2025-01-18 → 2026-07-12

Personal records

EventCourseBest CutDateMeet
50 Freestyle SCY 25.54 BB+0.85s to A·+2.35s to Sectionals 2026-03-29 LAMV C/B/A+ Meetvenue
100 Freestyle SCY 57.33 BB+3.04s to A·+6.34s to Sectionals 2026-01-25 Orinda Aquatics SCY Senior Open Meetvenue
200 Freestyle SCY 2:05.03 BB+6.44s to A·+13.24s to Sectionals 2026-02-15 2026 SI Presidents' Day Senior Classic - copivenue
500 Freestyle SCY 5:46.82 BB+24.23s to A·+44.13s to Sectionals 2026-03-28 LAMV C/B/A+ Meetvenue
50 Backstroke SCY 32.31 B+2.02s to BB·+8.62s to Futures 2026-02-16 2026 SI Presidents' Day Senior Classic - copivenue
100 Backstroke SCY 1:11.86 +2.37s to B·+16.37s to Sectionals 2025-01-18 2025 Thunderbolt Round Robin Invitationalvenue
200 Backstroke SCY 2:35.11 +3.32s to B·+33.82s to Sectionals 2025-01-18 2025 Thunderbolt Round Robin Invitationalvenue
50 Breaststroke SCY 33.00 BB+0.91s to A·+6.71s to Futures 2026-02-15 2026 SI Presidents' Day Senior Classic - copivenue
100 Breaststroke SCY 1:07.34 A+2.75s to AA·+4.15s to Sectionals 2026-03-29 LAMV C/B/A+ Meetvenue
200 Breaststroke SCY 2:28.72 BB+1.73s to A·+11.43s to Sectionals 2026-02-16 2026 SI Presidents' Day Senior Classic - copivenue
50 Butterfly SCY 31.85 B+1.76s to BB·+8.96s to Futures 2026-02-14 2026 SI Presidents' Day Senior Classic - copivenue
100 Butterfly SCY 1:10.07 +1.38s to B·+14.88s to Sectionals 2026-01-24 Orinda Aquatics SCY Senior Open Meetvenue
200 Individual Medley SCY 2:20.80 BB+8.61s to A·+16.81s to Sectionals 2026-03-28 LAMV C/B/A+ Meetvenue
400 Individual Medley SCY 5:06.07 BB+21.88s to A·+41.38s to Sectionals 2026-05-10 2026 Post-CCS SR Walk-On Meetvenue
50 Freestyle LCM 28.70 BB+0.11s to A·+1.71s to Sectionals 2026-07-11 Pacific Swimming Long Course Senior Openvenue
100 Freestyle LCM 1:04.48 BB+2.19s to A·+5.49s to Sectionals 2026-06-13 2026 DACA LC CBA Meetvenue
200 Freestyle LCM 2:22.32 BB+5.13s to A·+13.63s to Sectionals 2026-06-28 Pacific Swimming Long Course Senior Openvenue
400 Freestyle LCM 4:57.46 BB+5.37s to A·+23.07s to Sectionals 2026-07-11 Pacific Swimming Long Course Senior Openvenue
800 Freestyle LCM 10:27.42 BB+23.53s to A·+57.43s to Sectionals 2026-07-10 Pacific Swimming Long Course Senior Openvenue
100 Backstroke LCM 1:25.82 +4.63s to B·+20.63s to Sectionals 2025-06-22 2025 FDST June A/B Modified LC Invitationalvenue
200 Backstroke LCM 2:52.97 B+9.28s to BB·+31.48s to Sectionals 2025-06-21 Fresno Dolphins Swim Team A/B Modified Long Course Invitational
50 Breaststroke LCM 34.07 AA+0.58s to AAA·+3.18s to Futures 2026-07-11 Pacific Swimming Long Course Senior Openvenue
100 Breaststroke LCM 1:14.13 AA+2.34s to AAA·+0.43s to Sectionals 2026-07-12 Pacific Swimming Long Course Senior Openvenue
200 Breaststroke LCM 2:41.31 AA+4.22s to AAA·+0.43s to Sectionals 2026-07-10 Pacific Swimming Long Course Senior Openvenue
100 Butterfly LCM 1:17.61 B+4.72s to BB·+14.52s to Sectionals 2026-05-17 2026 DACA LC CBA+venue
200 Individual Medley LCM 2:33.07 A+6.18s to AA·+8.38s to Sectionals 2026-07-12 Pacific Swimming Long Course Senior Openvenue
400 Individual Medley LCM 5:38.04 BB+8.75s to A·+30.25s to Sectionals 2026-06-12 2026 DACA LC CBA Meetvenue

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 25.07 flying 200 Free Relay (leg 2) 2026-02-15 2026 SI Presidents' Day Senior Classic - copi
50 Breaststroke SCY 30.73 flying 200 Medley Relay (leg 2) 2026-02-16 2026 SI Presidents' Day Senior Classic - copi
100 Breaststroke SCY 1:10.07 flying 400 Medley Relay (leg 2) 2025-01-19 2025 Thunderbolt Round Robin Invitational

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 · LCM

2968 points (5/6 events — incomplete)

EventTime Points
400 FR LCM 4:57.46 597
200 BK LCM 2:52.97 416
200 BR LCM 2:41.31 739
200 IM LCM 2:33.07 642
400 IM LCM 5:38.04 574
200 FL LCM 0

IMR 15-16 · LCM

2686 points (5/5 events)

EventTime Points
200 FR LCM 2:22.32 562
100 BK LCM 1:25.82 333
100 BR LCM 1:14.13 741
100 FL LCM 1:17.61 408
200 IM LCM 2:33.07 642

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

PR splits

100 Freestyle SCY 57.33

28.12
29.21

Front half 28.12s · back half 29.21s

200 Freestyle SCY 2:05.03

27.82
31.71
33.01
32.49

Front half 59.53s · back half 65.50s

500 Freestyle SCY 5:46.82

29.65
34.43
35.03
36.03
37.02
36.61
35.14
34.42
34.31
34.18

Front half 172.16s · back half 174.66s

100 Backstroke SCY 1:11.86

35.68
36.18

Front half 35.68s · back half 36.18s

200 Backstroke SCY 2:35.11

37.09
38.89
39.86
39.27

Front half 75.98s · back half 79.13s

100 Breaststroke SCY 1:07.34

32.60
34.74

Front half 32.60s · back half 34.74s

200 Breaststroke SCY 2:28.72

34.34
38.15
37.56
38.67

Front half 72.49s · back half 76.23s

100 Butterfly SCY 1:10.07

32.61
37.46

Front half 32.61s · back half 37.46s

200 Individual Medley SCY 2:20.80

32.30
37.91
38.90
31.69

Front half 70.21s · back half 70.59s

400 Individual Medley SCY 5:06.07

33.56
38.59
40.07
39.43
40.45
41.28
37.09
35.60

Front half 151.65s · back half 154.42s

200 Freestyle LCM 2:22.32

70.80
71.52

Front half 70.80s · back half 71.52s

400 Freestyle LCM 4:57.46

34.17
38.61
37.33
38.34
37.28
38.34
37.64
35.75

Front half 148.45s · back half 149.01s

800 Freestyle LCM 10:27.42

32.69
38.40
37.91
39.18
39.08
41.01
39.56
40.72
39.29
40.74
40.63
40.80
40.05
40.94
38.72
37.70

Front half 308.55s · back half 318.87s

100 Backstroke LCM 1:25.82

42.84
42.98

Front half 42.84s · back half 42.98s

200 Backstroke LCM 2:52.97 split/total mismatch

41.38
44.11
45.12
42.36

100 Breaststroke LCM 1:14.13

34.99
39.14

Front half 34.99s · back half 39.14s

200 Breaststroke LCM 2:41.31

36.26
41.94
42.06
41.05

Front half 78.20s · back half 83.11s

200 Individual Medley LCM 2:33.07

35.20
41.82
40.92
35.13

Front half 77.02s · back half 76.05s

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 25.54 4 swims
100 Freestyle SCY 57.33 2 swims
200 Freestyle SCY 2:05.03 4 swims
500 Freestyle SCY 5:46.82 1 swim
50 Backstroke SCY 32.31 1 swim
100 Backstroke SCY 1:11.86 1 swim
200 Backstroke SCY 2:35.11 1 swim
50 Breaststroke SCY 33.00 1 swim
100 Breaststroke SCY 1:07.34 5 swims
200 Breaststroke SCY 2:28.72 5 swims
50 Butterfly SCY 31.85 1 swim
100 Butterfly SCY 1:10.07 2 swims
200 Individual Medley SCY 2:20.80 3 swims
400 Individual Medley SCY 5:06.07 2 swims
50 Freestyle LCM 28.70 5 swims
100 Freestyle LCM 1:04.48 4 swims
200 Freestyle LCM 2:22.32 4 swims
400 Freestyle LCM 4:57.46 2 swims
800 Freestyle LCM 10:27.42 1 swim
100 Backstroke LCM 1:25.82 2 swims
200 Backstroke LCM 2:52.97 2 swims
50 Breaststroke LCM 34.07 2 swims
100 Breaststroke LCM 1:14.13 8 swims
200 Breaststroke LCM 2:41.31 6 swims
100 Butterfly LCM 1:17.61 1 swim
200 Individual Medley LCM 2:33.07 5 swims
400 Individual Medley LCM 5:38.04 1 swim