Mackenzie O'Brien

Age: 14 years old
Age Category: 13-14
Team: Mid Michigan Aquatics Hurrican | Michigan Swimming

Personal Best

Short course distance

Event Time Age Date Standard Next Standard Mid Michigan Aquatics Hurrican Michigan Swimming Central Zone USA
Free 50 Y 24.32 14 10/17/2025 AAAA 1 2 19 99
Free 100 Y 53.02 15 02/07/2026 AAAA 1 4 10 104
50 Free
25.54
25.54
100 Free
27.48
53.02
100 Free
53.02
Free 200 Y 1:58.70 15 02/07/2026 AAA AAAA: 1:55.29 (+3.41s | 2.9%) 2 14 35 320
50 Free
27.97
27.97
100 Free
29.90
57.87
100 Free
57.87
150 Free
30.25
1:28.12
200 Free
30.58
1:58.70
100 Free
1:00.83
Free 500 Y 5:31.01 15 02/07/2026 AA AAA: 5:23.89 (+7.12s | 2.2%) 1 24 76 792
50 Free
28.81
28.81
100 Free
32.27
1:01.08
100 Free
1:01.08
150 Free
32.87
1:33.95
200 Free
33.58
2:07.53
100 Free
1:06.45
250 Free
33.52
2:41.05
300 Free
34.13
3:15.18
100 Free
1:07.65
350 Free
34.08
3:49.26
400 Free
34.33
4:23.59
100 Free
1:08.41
450 Free
34.27
4:57.86
500 Free
33.15
5:31.01
100 Free
1:07.42
Back 100 Y 59.13 15 02/07/2026 AAA AAAA: 57.69 (+1.44s | 2.4%) 1 5 14 135
50 Back
28.65
28.65
100 Back
30.48
59.13
100 Back
59.13
Back 200 Y 2:13.17 15 12/05/2025 AA AAA: 2:10.69 (+2.48s | 1.9%) 1 11 34 349
50 Back
31.66
31.66
100 Back
33.59
1:05.25
100 Back
1:05.25
150 Back
34.53
1:39.78
200 Back
33.39
2:13.17
100 Back
1:07.92
Breast 100 Y 1:10.88 15 02/07/2026 AA AAA: 1:09.69 (+1.19s | 1.7%) 1 24 53 471
50 Breast
32.96
32.96
100 Breast
37.92
1:10.88
100 Breast
1:10.88
Breast 200 Y 2:35.54 15 02/07/2026 AA AAA: 2:30.09 (+5.45s | 3.5%) 1 19 60 539
50 Breast
34.89
34.89
100 Breast
40.02
1:14.91
100 Breast
1:14.91
150 Breast
40.48
1:55.39
200 Breast
40.15
2:35.54
100 Breast
1:20.63
Fly 100 Y 58.43 15 02/07/2026 AAA AAAA: 57.59 (+0.84s | 1.4%) 1 3 7 103
50 Fly
27.20
27.20
100 Fly
31.23
58.43
100 Fly
58.43
Fly 200 Y 2:23.75 15 12/05/2025 A AA: 2:20.59 (+3.16s | 2.2%) 1 16 55 671
50 Fly
30.79
30.79
100 Fly
36.76
1:07.55
100 Fly
1:07.55
150 Fly
38.28
1:45.83
200 Fly
37.92
2:23.75
100 Fly
1:16.20
IM 400 Y 4:53.79 15 12/05/2025 AA AAA: 4:47.39 (+6.40s | 2.2%) 1 12 46 546
50 Fly
29.51
29.51
100 Fly
34.59
1:04.10
100 Fly
1:04.10
150 Back
36.39
1:40.49
200 Back
36.41
2:16.90
100 Back
1:12.80
250 Breast
42.70
2:59.60
300 Breast
44.09
3:43.69
100 Breast
1:26.79
350 Free
35.56
4:19.25
400 Free
34.54
4:53.79
100 Free
1:10.10

Long course distance

Event Time Age Date Standard Next Standard Mid Michigan Aquatics Hurrican Michigan Swimming Central Zone USA

Above are the fastest times that Mackenzie O'Brien has achieved in her swimming career. For each event, you can find Mackenzie's best time, the corresponding time standard, as well as how much faster Mackenzie needs to be to reach the next level. The last columns provide Mackenzie rankings at the team and LSC levels. These rankings are based on the Mackenzie'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.