Haddie Kostin

Age: 12 years old
Age Category: 11-12
Team: Brighton Aquatics Bull Sharks | Michigan Swimming

Personal Best

Short course distance

Event Time Age Date Standard Next Standard Brighton Aquatics Bull Sharks Michigan Swimming Central Zone USA
Free 50 Y 29.74 12 10/25/2025 BB A: 29.29 (+0.45s | 1.5%) 1 186 410 1,000+
Free 100 Y 1:08.45 12 01/16/2026 BB A: 1:03.99 (+4.46s | 6.5%) 1 257 558 1,000+
50 Free
32.13
32.13
100 Free
36.32
1:08.45
100 Free
1:08.45
Free 200 Y 2:31.39 12 11/15/2025 B BB: 2:30.89 (+0.50s | 0.3%) 1 210 458 1,000+
50 Free
33.87
33.87
100 Free
39.39
1:13.26
100 Free
1:13.26
150 Free
40.72
1:53.98
200 Free
37.41
2:31.39
100 Free
1:18.13
Free 500 Y 6:54.14 12 12/06/2025 B BB: 6:45.69 (+8.45s | 2.0%) 1 171 428 1,000+
50 Free
35.72
35.72
100 Free
40.99
1:16.71
100 Free
1:16.71
150 Free
42.92
1:59.63
200 Free
42.03
2:41.66
100 Free
1:24.95
250 Free
42.02
3:23.68
300 Free
42.08
4:05.76
100 Free
1:24.10
350 Free
43.41
4:49.17
400 Free
42.90
5:32.07
100 Free
1:26.31
450 Free
42.32
6:14.39
500 Free
39.75
6:54.14
100 Free
1:22.07
Back 50 Y 36.49 12 11/15/2025 B BB: 35.99 (+0.50s | 1.4%) 1 209 510 1,000+
Back 100 Y 1:20.37 12 11/21/2025 B BB: 1:19.79 (+0.58s | 0.7%) 1 232 531 1,000+
50 Back
39.22
39.22
100 Back
41.15
1:20.37
100 Back
1:20.37
Breast 50 Y 44.57 12 10/25/2025 B: 43.99 (+0.58s | 1.3%) 3 291 754 1,000+
Fly 50 Y 36.14 12 01/16/2026 B BB: 34.29 (+1.85s | 5.1%) 1 222 527 1,000+
Fly 100 Y 1:28.61 12 11/21/2025 B: 1:25.79 (+2.82s | 3.2%) 1 177 468 1,000+
50 Fly
38.00
38.00
100 Fly
50.61
1:28.61
100 Fly
1:28.61
IM 100 Y 1:19.52 12 12/06/2025 B BB: 1:19.09 (+0.43s | 0.5%) 1 214 475 1,000+
50 IM
36.44
36.44
100 IM
43.08
1:19.52
100 IM
1:19.52
IM 200 Y 2:51.78 12 10/25/2025 B BB: 2:50.69 (+1.09s | 0.6%) 1 161 397 1,000+
50 Fly
38.02
38.02
100 Back
45.22
1:23.24
100 IM
1:23.24
150 Breast
52.12
2:15.36
200 Free
36.42
2:51.78
100 IM
1:28.54

Long course distance

Event Time Age Date Standard Next Standard Brighton Aquatics Bull Sharks Michigan Swimming Central Zone USA

Above are the fastest times that Haddie Kostin has achieved in her swimming career. For each event, you can find Haddie's best time, the corresponding time standard, as well as how much faster Haddie needs to be to reach the next level. The last columns provide Haddie rankings at the team and LSC levels. These rankings are based on the Haddie's personal best, her current age category, and team; and are calculated from all the meets results.

Disclaimer: This Website is not affiliated with USA Swimming or any Local Swim Committee. The rankings and times displayed on this website are unofficial and should not be viewed as such. We update our information regularly, but we cannot guarantee that the data is accurate, timely, or complete. The only purpose of this website is entertainment. None of the information here should be used for university admission applications.