Swimmer profile
Mark Heffern
Male17-18Mesa Aquatics ClubAZ · WESTERN
SeasonUSA Swimming season runs Sept – Aug
Event
2015–16
2016–17
2017–18
2018–19
2019–20
2020–21
2021–22
2022–23
2023–24
2024–25
2025–26
50 Free SCY
37.03
35.28
▲ 1.75
31.50
▲ 3.78
29.80
▲ 1.70
26.55
▲ 3.25
24.67
▲ 1.88
23.26
▲ 1.41
22.26
▲ 1.00
22.12
▲ 0.14
21.81
▲ 0.31
22.03
▼ 0.22
100 Free SCY
1:22.14
1:18.48
▲ 3.66
1:10.88
▲ 7.60
1:06.00
▲ 4.88
1:04.05
▲ 1.95
54.79
▲ 9.26
48.88
▲ 5.91
48.67
▲ 0.21
48.90
▼ 0.23
45.71
▲ 3.19
45.36
▲ 0.35
200 Free SCY
—
2:55.10
2:33.32
▲ 21.78
2:32.87
▲ 0.45
2:16.23
▲ 16.64
2:05.58
▲ 10.65
1:54.44
▲ 11.14
1:47.40
▲ 7.04
1:43.59
▲ 3.81
1:39.37
▲ 4.22
1:38.01
▲ 1.36
500 Free SCY
—
—
—
6:48.34
6:09.24
▲ 39.10
—
5:03.61
▲ 65.63
4:48.81
▲ 14.80
4:46.61
▲ 2.20
4:54.29
▼ 7.68
4:36.58
▲ 17.71
1000 Free SCY
—
—
—
—
—
11:47.42
11:03.03
▲ 44.39
10:37.61
▲ 25.42
—
9:56.71
▲ 40.90
—
1650 Free SCY
—
—
—
—
—
19:58.96
—
17:39.36
▲ 139.60
17:24.66
▲ 14.70
16:32.89
▲ 51.77
16:24.19
▲ 8.70
50 Back SCY
43.62
38.49
▲ 5.13
36.11
▲ 2.38
33.90
▲ 2.21
31.37
▲ 2.53
27.94
▲ 3.43
27.68
▲ 0.26
25.50
▲ 2.18
25.36
▲ 0.14
—
—
100 Back SCY
1:42.31
1:23.88
▲ 18.43
1:19.54
▲ 4.34
1:14.31
▲ 5.23
1:10.24
▲ 4.07
1:05.45
▲ 4.79
59.75
▲ 5.70
55.26
▲ 4.49
1:00.35
▼ 5.09
51.89
▲ 8.46
55.20
▼ 3.31
200 Back SCY
—
—
—
2:43.34
—
2:27.05
▲ 16.29
2:15.50
▲ 11.55
2:03.14
▲ 12.36
2:05.11
▼ 1.97
1:56.77
▲ 8.34
1:57.09
▼ 0.32
50 Breast SCY
54.42
46.25
▲ 8.17
42.83
▲ 3.42
39.29
▲ 3.54
36.33
▲ 2.96
—
—
30.70
▲ 5.63
—
27.19
▲ 3.51
27.47
▼ 0.28
100 Breast SCY
1:56.25
1:45.44
▲ 10.81
1:40.22
▲ 5.22
1:28.23
▲ 11.99
1:25.14
▲ 3.09
1:11.73
▲ 13.41
1:04.49
▲ 7.24
1:03.94
▲ 0.55
1:01.89
▲ 2.05
59.17
▲ 2.72
56.44
▲ 2.73
200 Breast SCY
—
—
—
—
2:51.94
2:31.11
▲ 20.83
2:26.24
▲ 4.87
2:22.28
▲ 3.96
2:15.85
▲ 6.43
2:09.81
▲ 6.04
2:11.35
▼ 1.54
50 Fly SCY
43.66
42.82
▲ 0.84
36.91
▲ 5.91
32.18
▲ 4.73
30.04
▲ 2.14
—
25.43
▲ 4.61
—
—
24.19
▲ 1.24
22.96
▲ 1.23
100 Fly SCY
—
1:50.01
1:29.97
▲ 20.04
1:19.47
▲ 10.50
1:06.38
▲ 13.09
1:01.66
▲ 4.72
54.84
▲ 6.82
52.28
▲ 2.56
51.31
▲ 0.97
49.73
▲ 1.58
48.80
▲ 0.93
200 Fly SCY
—
—
—
—
—
—
2:08.46
2:07.87
▲ 0.59
1:55.91
▲ 11.96
1:49.72
▲ 6.19
1:48.07
▲ 1.65
100 IM SCY
—
1:41.55
1:21.86
▲ 19.69
1:19.97
▲ 1.89
1:11.57
▲ 8.40
—
—
—
—
—
—
200 IM SCY
—
3:12.25
2:59.44
▲ 12.81
2:48.05
▲ 11.39
2:28.34
▲ 19.71
2:19.95
▲ 8.39
2:06.92
▲ 13.03
1:56.02
▲ 10.90
1:54.92
▲ 1.10
1:49.33
▲ 5.59
1:48.81
▲ 0.52
400 IM SCY
—
—
—
—
—
—
4:38.91
4:09.96
▲ 28.95
4:07.45
▲ 2.51
3:56.27
▲ 11.18
3:54.57
▲ 1.70
Improvement<0.5s0.5–2s2–5s5s+Slower
📊 All Attempts by Event
Chronological history of every recorded swim. Click an event to expand its attempt list.