Swimmer profile
Grace Costello
Female15-16Planet Swim AquaticsFL · SOUTHERN
SeasonUSA Swimming season runs Sept – Aug
Event
2017–18
2018–19
2020–21
2021–22
2022–23
2023–24
2024–25
2025–26
50 Free LCM
50.42
41.87
▲ 8.55
34.84
▲ 7.03
33.08
▲ 1.76
31.89
▲ 1.19
31.30
▲ 0.59
30.07
▲ 1.23
30.20
▼ 0.13
100 Free LCM
1:54.64
—
1:15.79
▲ 38.85
1:11.47
▲ 4.32
1:10.55
▲ 0.92
1:07.52
▲ 3.03
1:04.33
▲ 3.19
1:04.68
▼ 0.35
200 Free LCM
—
—
2:42.31
2:34.61
▲ 7.70
2:33.89
▲ 0.72
2:30.65
▲ 3.24
2:16.24
▲ 14.41
2:15.82
▲ 0.42
400 Free LCM
—
—
5:42.70
—
5:25.98
▲ 16.72
—
4:48.37
▲ 37.61
4:43.84
▲ 4.53
800 Free LCM
—
—
—
—
11:07.47
10:20.40
▲ 47.07
—
9:39.80
▲ 40.60
1500 Free LCM
—
—
—
—
—
—
—
18:39.77
50 Back LCM
1:01.62
48.53
▲ 13.09
42.19
▲ 6.34
38.37
▲ 3.82
38.39
▼ 0.02
36.16
▲ 2.23
35.07
▲ 1.09
—
100 Back LCM
—
—
1:31.13
1:23.10
▲ 8.03
1:20.91
▲ 2.19
1:20.06
▲ 0.85
1:17.66
▲ 2.40
—
200 Back LCM
—
—
—
2:58.97
3:07.40
▼ 8.43
2:52.75
▲ 14.65
2:52.20
▲ 0.55
—
50 Breast LCM
1:12.81
—
50.71
▲ 22.10
48.51
▲ 2.20
—
—
—
—
100 Breast LCM
—
—
1:52.05
1:43.01
▲ 9.04
—
—
—
—
50 Fly LCM
57.67
48.08
▲ 9.59
39.02
▲ 9.06
36.25
▲ 2.77
34.65
▲ 1.60
34.14
▲ 0.51
33.84
▲ 0.30
31.92
▲ 1.92
100 Fly LCM
—
—
1:26.70
1:21.87
▲ 4.83
1:19.32
▲ 2.55
1:15.82
▲ 3.50
1:11.26
▲ 4.56
1:09.43
▲ 1.83
200 Fly LCM
—
—
—
2:58.45
2:54.99
▲ 3.46
2:52.72
▲ 2.27
2:49.25
▲ 3.47
2:35.35
▲ 13.90
200 IM LCM
—
—
3:13.52
3:01.86
▲ 11.66
3:01.46
▲ 0.40
2:55.63
▲ 5.83
—
2:44.92
▲ 10.71
400 IM LCM
—
—
—
—
—
—
6:02.60
5:51.86
▲ 10.74
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.