swimstats

Yuki Hayashi

Mage 19CACCIEMTNVSTSRN

44 plausible swims · 6 meets · 2021-12-03 → 2026-01-01

Personal records

EventCourseBest CutDateMeet
100 Freestyle SCY 49.95 2021-12-05 2021 IE VAN Vandal Invitational venue
200 Freestyle SCY 1:49.07 2021-12-04 2021 IE VAN Vandal Invitational venue
100 Backstroke SCY 55.50 2021-12-04 2021 IE VAN Vandal Invitational venue
200 Backstroke SCY 2:00.80 2021-12-05 2021 IE VAN Vandal Invitational venue
100 Butterfly SCY 54.11 2021-12-04 2021 IE VAN Vandal Invitational venue
200 Individual Medley SCY 1:58.95 2021-12-03 2021 IE VAN Vandal Invitational venue
100 Freestyle LCM 55.02 2025-06-29 2025 TYR GO Challenge venue
50 Backstroke LCM 28.09 2025-01-01 2025 tyr go challenge results
100 Backstroke LCM 59.66 2025-01-01 2025 tyr go challenge results
200 Backstroke LCM 2:08.68 2025-07-24 Futures Time Trials 2025 venue
100 Butterfly LCM 57.87 2025-01-01 2025 tyr go challenge results
200 Butterfly LCM 2:10.63 2025-05-25 2025 CA 29th NOVA-Speedo Grand Challenge venue
200 Individual Medley LCM 2:10.17 2025-01-01 2025 tyr go challenge results

Fastest relay legs

LegCourseTime StartRelayDateMeet
50 Freestyle SCY 22.42 flat 200 Free Relay 2021-12-03 2021 IE VAN Vandal Invitational
100 Freestyle SCY 50.58 flat 400 Free Relay 2021-12-04 2021 IE VAN Vandal Invitational
50 Backstroke SCY 25.64 flat 200 Medley Relay 2021-12-04 2021 IE VAN Vandal Invitational
100 Backstroke SCY 55.82 flat 400 Medley Relay 2021-12-03 2021 IE VAN Vandal Invitational
50 Freestyle LCM 24.31 flying 200 Free Relay (leg 2) 2025-07-23 USA Swimming Futures Sacramento 2025
50 Freestyle LCM 25.33 flying 200 Medley Relay (leg 4) 2025-07-23 USA Swimming Futures Sacramento 2025

Reconstructed from relay split marks. Flat = lead-off (comparable to individual times); flying starts run ~0.5–0.7s fast and are not PRs.

PR splits

100 Freestyle SCY 49.95

24.02
25.93

Front half 24.02s · back half 25.93s

200 Freestyle SCY 1:49.07

25.03
27.49
28.48
28.07

Front half 52.52s · back half 56.55s

100 Backstroke SCY 55.50

27.11
28.39

Front half 27.11s · back half 28.39s

200 Backstroke SCY 2:00.80

28.21
30.74
31.00
30.85

Front half 58.95s · back half 61.85s

100 Butterfly SCY 54.11

25.37
28.74

Front half 25.37s · back half 28.74s

200 Individual Medley SCY 1:58.95

25.40
29.58
36.58
27.39

Front half 54.98s · back half 63.97s

100 Freestyle LCM 55.02

26.65
28.37

Front half 26.65s · back half 28.37s

100 Backstroke LCM 59.66

29.26
30.40

Front half 29.26s · back half 30.40s

200 Backstroke LCM 2:08.68

30.16
32.11
32.55
33.86

Front half 62.27s · back half 66.41s

100 Butterfly LCM 57.87

27.03
30.84

Front half 27.03s · back half 30.84s

200 Butterfly LCM 2:10.63

29.22
32.98
33.46
34.97

Front half 62.20s · back half 68.43s

200 Individual Medley LCM 2:10.17

27.98
33.25
38.39
30.55

Front half 61.23s · back half 68.94s

Progression

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

100 Freestyle SCY 49.95 2 swims
200 Freestyle SCY 1:49.07 2 swims
100 Backstroke SCY 55.50 2 swims
200 Backstroke SCY 2:00.80 2 swims
100 Butterfly SCY 54.11 2 swims
200 Individual Medley SCY 1:58.95 2 swims
100 Freestyle LCM 55.02 2 swims
50 Backstroke LCM 28.09 4 swims
100 Backstroke LCM 59.66 8 swims
200 Backstroke LCM 2:08.68 8 swims
100 Butterfly LCM 57.87 4 swims
200 Butterfly LCM 2:10.63 1 swim
200 Individual Medley LCM 2:10.17 5 swims