Zakary Guenther

Mage 19HIIEMTNMORPNUTCATORE

185 plausible swims · 32 meets · 2021-07-27 → 2026-06-26

Personal records

EventCourseBest CutDateMeet
50 Freestyle SCY 23.23 2024-01-12 2024 PN VAST 47th Annual Washington Open venue
100 Freestyle SCY 49.19 2024-12-07 2024 Oregon Senior Open venue
200 Freestyle SCY 1:44.98 2025-01-16 2025 PN VAST 48th Annual Washington Open
500 Freestyle SCY 4:44.97 2025-01-17 2025 Washington Open venue
1000 Freestyle SCY 9:45.45 2024-01-11 2024 PN VAST 47th Annual Washington Open venue
100 Backstroke SCY 51.47 2025-01-19 2025 PN VAST 48th Annual Washington Open venue
200 Backstroke SCY 1:52.51 2025-01-17 2025 Washington Open venue
100 Breaststroke SCY 1:01.49 2024-12-07 2024 Oregon Senior Open venue
200 Breaststroke SCY 2:16.96 2024-01-14 2024 PN VAST 47th Annual Washington Open venue
100 Butterfly SCY 51.87 2025-01-18 2025 PN VAST 48th Annual Washington Open venue
200 Butterfly SCY 1:51.08 2025-01-19 2025 PN VAST 48th Annual Washington Open venue
200 Individual Medley SCY 1:56.98 2024-01-12 2024 PN VAST 47th Annual Washington Open venue
400 Individual Medley SCY 4:06.05 2024-01-13 2024 PN VAST 47th Annual Washington Open venue
50 Freestyle LCM 26.71 2025-06-28 TEAM Summer Invitational venue
100 Freestyle LCM 56.38 2025 Speedo Sectionals - Mt Hood WZ venue
200 Freestyle LCM 2:00.87 2024-08-02 WZ LCM Senior Champs 2024 venue
400 Freestyle LCM 4:26.89 2022-07-28 Finals - Western Zone Senior Champs fast pool
800 Freestyle LCM 9:07.47 2022-07-14 2022 Speedo Sectionals - Mt Hood venue
1500 Freestyle LCM 16:49.92 2024-07-30 GroupB - WZ LCM Senior Champs 2024 venue
50 Backstroke LCM 31.22 2026-06-26 2026 TEAM Summer Invitational venue
100 Backstroke LCM 1:02.59 2024-07-12 2024 Speedo Sectionals - Mt Hood venue
200 Backstroke LCM 2:12.76 2024-08-01 WZ LCM Senior Champs 2024 venue
100 Breaststroke LCM 1:18.95 2026-05-29 2026 TRI-CITY INVITATIONAL venue
200 Breaststroke LCM 2:41.47 2025-06-28 TEAM Summer Invitational venue
100 Butterfly LCM 59.42 2024-08-01 WZ LCM Senior Champs 2024 venue
200 Butterfly LCM 2:02.52 2025-07-30 2025 Speedo Junior National Championships fast pool
200 Individual Medley LCM 2:11.04 2025-07-23 USA Swimming Futures Sacramento 2025
400 Individual Medley LCM 4:35.71 2025-07-23 USA Swimming Futures Sacramento 2025

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
100 Freestyle SCY 47.50 flying 400 Free Relay (leg 4) 2025-01-18 2025 PN VAST 48th Annual Washington Open
200 Freestyle SCY 1:44.67 flat 800 Free Relay 2025-01-16 2025 Washington Open
200 Freestyle SCY 1:44.62 flying 800 Free Relay (leg 4) 2025-01-16 2025 PN VAST 48th Annual Washington Open
50 Backstroke SCY 26.28 flat 200 Medley Relay 2022-03-30 2022 Western Zone SCY Senior Zones
100 Backstroke SCY 52.42 flat 400 Medley Relay 2025-01-17 2025 Washington Open
50 Freestyle LCM 26.24 flying 200 Free Relay (leg 4) 2022-07-14 2022 Speedo Sectionals - Mt Hood
100 Freestyle LCM 58.93 flat 400 Free Relay 2021-08-04 2021 Western Zone Age Group Championships
100 Freestyle LCM 55.51 flying 400 Free Relay (leg 2) 2024-07-12 2024 Speedo Sectionals - Mt Hood
200 Freestyle LCM 2:02.14 flying 800 Free Relay (leg 2) 2024-07-13 2024 Speedo Sectionals - Mt Hood
50 Backstroke LCM 29.24 flat 200 Medley Relay 2025-07-17 2025 Speedo Sectionals - Mt Hood WZ
100 Backstroke LCM 1:01.04 flat 400 Medley Relay 2025-07-26 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 49.19

24.06
25.13

Front half 24.06s · back half 25.13s

200 Freestyle SCY 1:44.98

25.03
26.62
27.16
26.17

Front half 51.65s · back half 53.33s

500 Freestyle SCY 4:44.97

25.57
28.16
29.07
29.33
29.39
29.24
28.88
28.69
28.89
27.75

Front half 141.52s · back half 143.45s

1000 Freestyle SCY 9:45.45 RT 0.53s

26.38
29.44
29.18
29.73
29.32
29.49
29.45
29.44
29.56
29.62
29.63
29.73
29.62
29.70
29.68
29.49
29.45
29.66
28.69
28.19

Front half 291.61s · back half 293.84s

100 Backstroke SCY 51.47 RT 0.92s

24.97
26.50

Front half 24.97s · back half 26.50s

200 Backstroke SCY 1:52.51 RT 0.75s

26.29
28.45
28.93
28.84

Front half 54.74s · back half 57.77s

100 Breaststroke SCY 1:01.49

29.21
32.28

Front half 29.21s · back half 32.28s

200 Breaststroke SCY 2:16.96 RT 0.49s

31.09
34.93
35.43
35.51

Front half 66.02s · back half 70.94s

100 Butterfly SCY 51.87 RT 0.49s

24.53
27.34

Front half 24.53s · back half 27.34s

200 Butterfly SCY 1:51.08 RT 0.49s

24.83
28.27
28.87
29.11

Front half 53.10s · back half 57.98s

200 Individual Medley SCY 1:56.98 RT 0.47s

25.43
29.45
34.75
27.35

Front half 54.88s · back half 62.10s

400 Individual Medley SCY 4:06.05 RT 0.51s

25.60
29.04
31.01
30.63
35.72
36.76
29.49
27.80

Front half 116.28s · back half 129.77s

200 Freestyle LCM 2:00.87

28.82
30.79
31.03
30.23

Front half 59.61s · back half 61.26s

400 Freestyle LCM 4:26.89

31.70
34.23
33.84
34.09
33.37
34.51
33.30
31.85

Front half 133.86s · back half 133.03s

800 Freestyle LCM 9:07.47

30.95
33.65
34.27
34.19
34.68
34.85
35.10
34.81
35.04
35.10
34.86
34.28
68.81
34.05
32.83

1500 Freestyle LCM 16:49.92

31.18
34.28
34.46
34.42
33.63
34.19
33.80
34.25
33.80
33.99
33.80
33.86
33.74
33.78
33.94
33.81
33.67
33.92
33.13
33.45
33.24
34.00
33.85
34.07
33.79
33.55
33.69
34.01
32.54
32.08

Front half 507.12s · back half 502.80s

200 Backstroke LCM 2:12.76

31.49
33.78
34.31
33.18

Front half 65.27s · back half 67.49s

200 Breaststroke LCM 2:41.47

37.99
40.99
41.86
40.63

Front half 78.98s · back half 82.49s

100 Butterfly LCM 59.42

28.40
31.02

Front half 28.40s · back half 31.02s

200 Butterfly LCM 2:02.52 RT 0.64s

27.38
31.20
31.90
32.04

Front half 58.58s · back half 63.94s

200 Individual Medley LCM 2:11.04 split/total mismatch

28.29
32.94
39.04
30.77

400 Individual Medley LCM 4:35.71 split/total mismatch

28.05
31.79
36.63
35.85
40.25
41.32
31.70
30.12

Reaction time

fastest 0.47s average 0.578s slowest 0.92s 32 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.

Progression

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

50 Freestyle SCY 23.23 3 swims
100 Freestyle SCY 49.19 6 swims
200 Freestyle SCY 1:44.98 8 swims
500 Freestyle SCY 4:44.97 10 swims
1000 Freestyle SCY 9:45.45 1 swim
100 Backstroke SCY 51.47 5 swims
200 Backstroke SCY 1:52.51 7 swims
100 Breaststroke SCY 1:01.49 4 swims
200 Breaststroke SCY 2:16.96 3 swims
100 Butterfly SCY 51.87 5 swims
200 Butterfly SCY 1:51.08 11 swims
200 Individual Medley SCY 1:56.98 7 swims
400 Individual Medley SCY 4:06.05 9 swims
50 Freestyle LCM 26.71 2 swims
100 Freestyle LCM 56.38 3 swims
200 Freestyle LCM 2:00.87 5 swims
400 Freestyle LCM 4:26.89 1 swim
800 Freestyle LCM 9:07.47 4 swims
1500 Freestyle LCM 16:49.92 3 swims
50 Backstroke LCM 31.22 1 swim
100 Backstroke LCM 1:02.59 5 swims
200 Backstroke LCM 2:12.76 11 swims
100 Breaststroke LCM 1:18.95 1 swim
200 Breaststroke LCM 2:41.47 4 swims
100 Butterfly LCM 59.42 4 swims
200 Butterfly LCM 2:02.52 29 swims
200 Individual Medley LCM 2:11.04 9 swims
400 Individual Medley LCM 4:35.71 22 swims