Swimmer profile
Sierra Koontz
Female17-18Memphis Thunder Aquatic ClubSE · SOUTHERN
SeasonUSA Swimming season runs Sept – Aug
Event
2017–18
2018–19
2019–20
2020–21
2021–22
2022–23
2023–24
2024–25
2025–26
50 Free SCY
49.03
38.70
▲ 10.33
36.17
▲ 2.53
34.30
▲ 1.87
29.28
▲ 5.02
27.81
▲ 1.47
26.06
▲ 1.75
26.58
▼ 0.52
25.82
▲ 0.76
100 Free SCY
—
1:28.13
1:21.02
▲ 7.11
1:14.00
▲ 7.02
1:07.61
▲ 6.39
1:03.04
▲ 4.57
56.63
▲ 6.41
56.46
▲ 0.17
55.16
▲ 1.30
200 Free SCY
—
3:14.53
2:58.28
▲ 16.25
2:40.65
▲ 17.63
2:27.22
▲ 13.43
—
2:08.79
▲ 18.43
2:05.01
▲ 3.78
1:59.51
▲ 5.50
500 Free SCY
—
—
—
—
—
—
—
5:52.48
5:23.84
▲ 28.64
50 Back SCY
56.05
45.29
▲ 10.76
43.90
▲ 1.39
—
34.58
▲ 9.32
—
—
—
—
100 Back SCY
—
—
1:34.29
1:25.81
▲ 8.48
1:19.31
▲ 6.50
1:13.51
▲ 5.80
—
—
1:07.64
▲ 5.87
200 Back SCY
—
—
—
—
2:38.85
—
—
—
2:32.04
▲ 6.81
50 Breast SCY
—
1:01.66
49.10
▲ 12.56
44.65
▲ 4.45
43.74
▲ 0.91
—
—
—
—
100 Breast SCY
—
—
—
—
—
1:28.49
—
—
1:22.18
▲ 6.31
50 Fly SCY
—
—
—
41.71
36.78
▲ 4.93
—
—
—
27.67
▲ 9.11
100 Fly SCY
—
—
1:40.93
—
1:15.74
▲ 25.19
—
1:01.84
▲ 13.90
1:02.95
▼ 1.11
1:00.39
▲ 2.56
100 IM SCY
—
1:38.06
1:31.40
▲ 6.66
—
1:19.46
▲ 11.94
—
—
—
—
200 IM SCY
—
—
—
3:15.21
2:48.95
▲ 26.26
2:39.13
▲ 9.82
2:40.14
▼ 1.01
—
2:22.89
▲ 17.25
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.