swimstats

Mark Underwood

Mage 39GAORSESTBAMAUN

334 plausible swims · 54 meets · 2013-01-01 → 2026-07-12

Personal records

EventCourseBest CutDateMeet
25 Freestyle SCY 16.59 2014-02-07 2014 Swim Your Heart Out
50 Freestyle SCY 22.71 +0.42s to Sectionals 2023-02-03 2023 SE BSL Region 3 Championship
100 Freestyle SCY 50.45 +2.16s to Sectionals 2026-01-01 meet results 5
200 Freestyle SCY 1:47.64 +1.85s to Sectionals 2023-02-03 2023 SE BSL Region 3 Championship
500 Freestyle SCY 4:53.43 +7.34s to Sectionals 2026-01-01 meet results 5
1000 Freestyle SCY 11:31.00 +93.81s to Sectionals 2026-01-01 mm7results3colnotstd
1650 Freestyle SCY 16:51.45 +2.76s to Sectionals 2020-02-21 2020 SE Southeastern SC Championships
25 Backstroke SCY 19.26 2013-01-01 readable results 2013 cranberry
50 Backstroke SCY 30.45 +4.76s to Sectionals 2026-01-01 2018 BSL Sprint Into Fall Inviational
100 Backstroke SCY 55.81 +0.72s to Sectionals 2023-02-03 2023 SE BSL Region 3 Championship
200 Backstroke SCY 2:13.24 +10.95s to Sectionals 2026-01-01 rcc results
25 Breaststroke SCY 20.47 2013-01-01 readable results 2013 cranberry
50 Breaststroke SCY 32.02 +2.53s to Sectionals 2026-01-01 2018 BSL Sprint Into Fall Inviational
100 Breaststroke SCY 1:01.18 Sectionals ✓+6.19s to Futures 2021-02-19 2021 SE Southeastern Senior SC Championship M
200 Breaststroke SCY 2:04.81 Sectionals ✓+4.42s to Futures 2022-12-04 2022 SE Auburn Aquatics Invitational
25 Butterfly SCY 17.34 2014-02-07 2014 Swim Your Heart Out
50 Butterfly SCY 28.46 +4.17s to Sectionals 2026-01-01 2018 BSL Sprint Into Fall Inviational
100 Butterfly SCY 56.78 +4.09s to Sectionals 2026-01-01 meet results 5
200 Butterfly SCY 2:02.14 +3.65s to Sectionals 2021-02-19 2021 SE Southeastern Senior SC Championship M
100 Individual Medley SCY 1:02.62 2026-01-01 2018 BSL Sprint Into Fall Inviational
200 Individual Medley SCY 1:59.69 +0.30s to Sectionals 2022-12-04 2022 SE Auburn Aquatics Invitational
400 Individual Medley SCY 4:18.91 +6.92s to Sectionals 2020-02-21 2020 SE Southeastern SC Championships
50 Freestyle LCM 31.75 +6.16s to Sectionals 2017-01-01 Birmingham Swim League
100 Freestyle LCM 1:05.28 +9.99s to Sectionals 2026-01-01 iron city classic results
200 Freestyle LCM 2:23.63 +22.74s to Sectionals 2017-01-01 Birmingham Swim League
400 Freestyle LCM 4:44.54 +25.45s to Sectionals 2019-05-04 2019 SE SBY Swim Into Summer
800 Freestyle LCM 9:23.95 +28.36s to Sectionals 2019-07-18 2019 SE Southeastern LC Championships
1500 Freestyle LCM 18:03.72 +49.53s to Sectionals 2019-07-18 2019 SE Southeastern LC Championships
50 Backstroke LCM 37.53 +7.34s to Sectionals 2017-01-01 Birmingham Swim League
100 Backstroke LCM 1:18.42 +13.93s to Sectionals 2017-01-01 Birmingham Swim League
200 Backstroke LCM 2:54.32 +33.63s to Sectionals 2018-04-07 2018 Spring Fling
50 Breaststroke LCM 29.73 Sectionals ✓+0.14s to Futures 2026-07-12 LCM Tsunami Summer Splashvenue
100 Breaststroke LCM 1:03.39 US Open ✓+1.30s to Nationals LCM Tsunami Summer Splashvenue
200 Breaststroke LCM 2:16.05 Nationals ✓ 2026-01-01 2026 Toyota National Championships
50 Butterfly LCM 26.72 Sectionals ✓+1.33s to Futures 2026-04-18 2026 Carson Muir Cowgirl Classicvenue
100 Butterfly LCM 59.52 Sectionals ✓+3.63s to Futures 2025-02-21 2025 SE Southeastern Winter SC Championships
200 Butterfly LCM 2:37.29 +19.90s to Sectionals 2019-05-04 2019 SE SBY Swim Into Summer
200 Individual Medley LCM 2:14.98 Sectionals ✓+6.99s to Futures 2022-07-14 2022 SE Southeastern LC Championships
400 Individual Medley LCM 4:56.68 +2.79s to Sectionals 2022-07-14 2022 SE Southeastern LC Championships

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.

PR splits

100 Freestyle SCY 50.45

24.12
26.33

Front half 24.12s · back half 26.33s

500 Freestyle SCY 4:53.43

26.19
28.98
29.71
29.73
29.72
29.77
30.11
29.76
29.61
29.85

Front half 144.33s · back half 149.10s

1650 Freestyle SCY 16:51.45

26.76
29.66
30.82
30.46
31.15
31.06
30.94
30.78
30.94
31.25
31.06
31.56
30.47
31.07
31.32
31.44
30.77
31.02
30.77
30.97
30.69
31.09
30.94
30.12
30.76
30.58
31.61
30.56
30.62
30.27
30.41
29.71
29.82

200 Backstroke SCY 2:13.24

30.97
34.35
34.32
33.60

Front half 65.32s · back half 67.92s

100 Breaststroke SCY 1:01.18

28.60
32.58

Front half 28.60s · back half 32.58s

200 Breaststroke SCY 2:04.81

27.92
31.39
32.61
32.89

Front half 59.31s · back half 65.50s

100 Butterfly SCY 56.78

26.50
30.28

Front half 26.50s · back half 30.28s

200 Butterfly SCY 2:02.14

27.30
31.11
31.93
31.80

Front half 58.41s · back half 63.73s

200 Individual Medley SCY 1:59.69

24.32
31.86
34.00
29.51

Front half 56.18s · back half 63.51s

400 Individual Medley SCY 4:18.91

26.35
30.97
33.42
33.16
36.85
36.89
31.25
30.02

Front half 123.90s · back half 135.01s

800 Freestyle LCM 9:23.95

29.86
33.79
35.26
36.01
23.05
48.71
36.04
36.14
27.04
45.07
35.76
35.82
24.19
47.41
18.12
51.68

Front half 278.86s · back half 285.09s

1500 Freestyle LCM 18:03.72

67.44
72.86
72.52
72.31
73.08
72.88
75.06
72.81
73.06
72.16
72.90
72.11
72.42
72.60
69.51

200 Individual Medley LCM 2:14.98 split/total mismatch

28.16
36.73
38.11
31.98

400 Individual Medley LCM 4:56.68 split/total mismatch

64.29
80.52
83.51
68.36

Reaction time

fastest 0.67s average 0.675s slowest 0.68s 2 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.

25 Freestyle SCY 16.59 1 swim
50 Freestyle SCY 22.71 7 swims
100 Freestyle SCY 50.45 8 swims
200 Freestyle SCY 1:47.64 16 swims
500 Freestyle SCY 4:53.43 13 swims
1000 Freestyle SCY 11:31.00 1 swim
1650 Freestyle SCY 16:51.45 7 swims
25 Backstroke SCY 19.26 1 swim
50 Backstroke SCY 30.45 10 swims
100 Backstroke SCY 55.81 14 swims
200 Backstroke SCY 2:13.24 3 swims
25 Breaststroke SCY 20.47 2 swims
50 Breaststroke SCY 32.02 12 swims
100 Breaststroke SCY 1:01.18 27 swims
200 Breaststroke SCY 2:04.81 17 swims
25 Butterfly SCY 17.34 2 swims
50 Butterfly SCY 28.46 8 swims
100 Butterfly SCY 56.78 22 swims
200 Butterfly SCY 2:02.14 7 swims
100 Individual Medley SCY 1:02.62 15 swims
200 Individual Medley SCY 1:59.69 27 swims
400 Individual Medley SCY 4:18.91 7 swims
50 Freestyle LCM 31.75 2 swims
100 Freestyle LCM 1:05.28 5 swims
200 Freestyle LCM 2:23.63 6 swims
400 Freestyle LCM 4:44.54 9 swims
800 Freestyle LCM 9:23.95 3 swims
1500 Freestyle LCM 18:03.72 1 swim
50 Backstroke LCM 37.53 2 swims
100 Backstroke LCM 1:18.42 5 swims
200 Backstroke LCM 2:54.32 2 swims
50 Breaststroke LCM 29.73 7 swims
100 Breaststroke LCM 1:03.39 20 swims
200 Breaststroke LCM 2:16.05 10 swims
50 Butterfly LCM 26.72 5 swims
100 Butterfly LCM 59.52 12 swims
200 Butterfly LCM 2:37.29 2 swims
200 Individual Medley LCM 2:14.98 11 swims
400 Individual Medley LCM 4:56.68 3 swims