Swimmer profile
Gemma Sonnonstine
Female15-16Houston Bridge BatsGU · SOUTHERN
SeasonUSA Swimming season runs Sept – Aug
Event
2018–19
2019–20
2020–21
2021–22
2022–23
2023–24
2024–25
2025–26
50 Free SCY
—
41.81
—
34.16
▲ 7.65
31.19
▲ 2.97
29.08
▲ 2.11
27.92
▲ 1.16
27.34
▲ 0.58
100 Free SCY
—
—
1:30.45
—
1:13.68
▲ 16.77
1:05.45
▲ 8.23
1:05.44
▲ 0.01
1:01.80
▲ 3.64
200 Free SCY
—
—
—
2:59.57
—
2:32.12
▲ 27.45
2:27.58
▲ 4.54
—
50 Back SCY
51.86
—
39.68
▲ 12.18
—
36.66
▲ 3.02
34.61
▲ 2.05
34.23
▲ 0.38
—
100 Back SCY
—
1:47.56
—
1:35.06
▲ 12.50
—
1:18.70
▲ 16.36
—
1:12.31
▲ 6.39
200 Back SCY
—
—
—
—
—
3:01.61
—
—
50 Breast SCY
—
59.66
—
48.33
▲ 11.33
45.87
▲ 2.46
42.83
▲ 3.04
—
—
100 Breast SCY
—
—
2:05.45
1:46.95
▲ 18.50
1:40.30
▲ 6.65
1:33.15
▲ 7.15
1:30.30
▲ 2.85
—
50 Fly SCY
—
—
—
45.56
34.66
▲ 10.90
30.84
▲ 3.82
29.61
▲ 1.23
—
100 Fly SCY
—
—
—
—
—
1:12.45
1:13.75
▼ 1.30
1:05.20
▲ 8.55
100 IM SCY
—
—
—
1:33.22
1:22.05
▲ 11.17
1:17.01
▲ 5.04
1:14.91
▲ 2.10
—
200 IM SCY
—
—
—
—
—
2:52.36
—
—
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.