Swimmer profile
Krystyna Yefremova
Female15-16West Coast AquaticsPNW · WESTERN
SeasonUSA Swimming season runs Sept – Aug
Event
2023–24
2024–25
2025–26
50 Free SCY
25.20
24.72
▲ 0.48
24.91
▼ 0.19
100 Free SCY
55.90
55.78
▲ 0.12
56.69
▼ 0.91
200 Free SCY
2:13.39
—
—
500 Free SCY
—
5:56.39
5:41.16
▲ 15.23
1000 Free SCY
—
—
11:38.46
1650 Free SCY
—
—
19:15.64
50 Back SCY
30.28
—
29.93
▲ 0.35
100 Back SCY
1:09.16
—
1:05.48
▲ 3.68
200 Back SCY
—
2:26.81
2:20.17
▲ 6.64
50 Breast SCY
31.48
32.28
▼ 0.80
30.74
▲ 1.54
100 Breast SCY
1:10.58
1:08.27
▲ 2.31
1:07.37
▲ 0.90
200 Breast SCY
2:32.66
2:29.40
▲ 3.26
2:31.20
▼ 1.80
50 Fly SCY
29.37
30.15
▼ 0.78
28.28
▲ 1.87
100 Fly SCY
1:13.99
1:09.58
▲ 4.41
1:06.28
▲ 3.30
200 Fly SCY
—
2:45.79
2:35.05
▲ 10.74
100 IM SCY
1:05.12
—
1:03.99
▲ 1.13
200 IM SCY
2:26.98
2:27.43
▼ 0.45
2:20.13
▲ 7.30
400 IM SCY
5:16.26
5:17.79
▼ 1.53
5:02.04
▲ 15.75
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.