Swimmer profile
Mikayla Costello
Female13-14Planet Swim AquaticsFL · SOUTHERN
SeasonUSA Swimming season runs Sept – Aug
Event
2021–22
2022–23
2023–24
2024–25
2025–26
50 Free LCM
35.15
32.73
▲ 2.42
31.17
▲ 1.56
29.72
▲ 1.45
28.83
▲ 0.89
100 Free LCM
1:22.37
1:12.64
▲ 9.73
1:07.32
▲ 5.32
1:03.66
▲ 3.66
1:01.83
▲ 1.83
200 Free LCM
—
2:37.79
2:31.37
▲ 6.42
2:19.54
▲ 11.83
2:15.00
▲ 4.54
400 Free LCM
—
5:31.46
5:21.84
▲ 9.62
5:08.41
▲ 13.43
5:00.78
▲ 7.63
50 Back LCM
50.03
42.48
▲ 7.55
39.67
▲ 2.81
39.51
▲ 0.16
—
100 Back LCM
1:49.39
1:38.10
▲ 11.29
1:28.18
▲ 9.92
1:22.83
▲ 5.35
—
200 Back LCM
—
—
—
3:02.80
—
50 Breast LCM
50.43
41.92
▲ 8.51
40.59
▲ 1.33
37.87
▲ 2.72
35.63
▲ 2.24
100 Breast LCM
1:51.51
1:32.99
▲ 18.52
1:28.09
▲ 4.90
1:22.00
▲ 6.09
1:19.86
▲ 2.14
200 Breast LCM
—
—
3:03.43
2:57.32
▲ 6.11
2:49.85
▲ 7.47
50 Fly LCM
45.57
39.95
▲ 5.62
36.02
▲ 3.93
32.70
▲ 3.32
—
100 Fly LCM
—
1:32.87
1:26.41
▲ 6.46
1:18.94
▲ 7.47
—
200 IM LCM
—
3:04.16
2:57.21
▲ 6.95
2:43.01
▲ 14.20
2:39.58
▲ 3.43
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.