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MacKenzie Pierce

Age: 18 years old
Age Category: 17-18
Team: Carson Tigersharks | Pacific Swimming

Personal Best

Short course distance

Event Time Age Date Standard Next Standard Carson Tigersharks Pacific Swimming Western Zone USA
Free 50 Y 26.56 18 02/14/2025 A AA: 25.79 (+0.77s | 2.9%) 2 213 1,000+ 1,000+
Free 100 Y 56.59 Analysis 18 05/08/2026 A AA: 55.89 (+0.70s | 1.2%) 2 167 865 1,000+
Free 200 Y 2:03.56 Analysis 18 02/14/2025 A AA: 2:00.89 (+2.67s | 2.2%) 2 152 767 1,000+
50 Free
29.52
29.52
100 Free
31.25
1:00.77
100 Free
1:00.77
150 Free
32.05
1:32.82
200 Free
30.74
2:03.56
100 Free
1:02.79
Free 500 Y 5:25.99 Analysis 18 04/02/2025 A AA: 5:25.69 (+0.30s | 0.1%) 2 104 470 1,000+
50 Free
30.72
30.72
100 Free
32.71
1:03.43
100 Free
1:03.43
150 Free
32.91
1:36.34
200 Free
33.02
2:09.36
100 Free
1:05.93
250 Free
33.03
2:42.39
300 Free
32.97
3:15.36
100 Free
1:06.00
350 Free
32.83
3:48.19
400 Free
33.01
4:21.20
100 Free
1:05.84
450 Free
32.82
4:54.02
500 Free
31.97
5:25.99
100 Free
1:04.79
Free 1000 Y 12:49.57 Analysis 18 08/04/2023 B BB: 12:47.09 (+2.48s | 0.3%) 2 133 520 1,000+
50 Free
34.54
34.54
100 Free
38.05
1:12.59
100 Free
1:12.59
150 Free
38.62
1:51.21
200 Free
38.44
2:29.65
100 Free
1:17.06
250 Free
38.74
3:08.39
300 Free
38.43
3:46.82
100 Free
1:17.17
350 Free
38.77
4:25.59
400 Free
38.73
5:04.32
100 Free
1:17.50
450 Free
38.77
5:43.09
500 Free
38.80
6:21.89
100 Free
1:17.57
550 Free
39.02
7:00.91
600 Free
38.83
7:39.74
100 Free
1:17.85
650 Free
38.97
8:18.71
700 Free
39.04
8:57.75
100 Free
1:18.01
750 Free
39.06
9:36.81
800 Free
38.72
10:15.53
100 Free
1:17.78
850 Free
39.11
10:54.64
900 Free
38.75
11:33.39
100 Free
1:17.86
950 Free
38.77
12:12.16
1000 Free
37.41
12:49.57
100 Free
1:16.18
Free 1650 Y 21:10.68 Analysis 18 11/11/2021 B BB: 21:09.59 (+1.09s | 0.1%) 2 114 454 1,000+
50 Free
35.21
35.21
100 Free
39.17
1:14.38
100 Free
1:14.38
150 Free
39.76
1:54.14
200 Free
38.29
2:32.43
100 Free
1:18.05
250 Free
38.62
3:11.05
300 Free
38.84
3:49.89
100 Free
1:17.46
350 Free
38.86
4:28.75
400 Free
38.94
5:07.69
100 Free
1:17.80
450 Free
38.21
5:45.90
500 Free
37.88
6:23.78
100 Free
1:16.09
550 Free
38.22
7:02.00
600 Free
38.72
7:40.72
100 Free
1:16.94
650 Free
37.65
8:18.37
700 Free
38.86
8:57.23
100 Free
1:16.51
750 Free
37.87
9:35.10
800 Free
38.04
10:13.14
100 Free
1:15.91
850 Free
38.48
10:51.62
900 Free
38.57
11:30.19
100 Free
1:17.05
950 Free
38.64
12:08.83
1000 Free
38.25
12:47.08
100 Free
1:16.89
1050 Free
38.92
13:26.00
1100 Free
38.66
14:04.66
100 Free
1:17.58
1150 Free
38.86
14:43.52
1200 Free
38.70
15:22.22
100 Free
1:17.56
1250 Free
39.26
16:01.48
1300 Free
39.47
16:40.95
100 Free
1:18.73
1350 Free
39.08
17:20.03
1400 Free
39.27
17:59.30
100 Free
1:18.35
1450 Free
38.96
18:38.26
1500 Free
38.71
19:16.97
100 Free
1:17.67
1550 Free
38.95
19:55.92
1600 Free
38.44
20:34.36
100 Free
1:17.39
1650 Free
36.32
21:10.68
Back 50 Y 35.98 18 02/07/2020 B: 34.59 (+1.39s | 3.9%) 1 254 1,000+ 1,000+
Back 100 Y 1:04.24 Analysis 18 02/14/2025 BB A: 1:02.89 (+1.35s | 2.1%) 2 134 729 1,000+
50 Back
31.61
31.61
100 Back
32.63
1:04.24
100 Back
1:04.24
Back 200 Y 2:20.93 Analysis 18 10/17/2025 BB A: 2:16.09 (+4.84s | 3.4%) 1 126 678 1,000+
Breast 50 Y 44.26 18 08/02/2019 B: 40.39 (+3.87s | 8.7%) 2 322 1,000+ 1,000+
Breast 100 Y 1:16.56 Analysis 18 10/17/2025 BB A: 1:12.69 (+3.87s | 5.1%) 2 200 920 1,000+
Breast 200 Y 2:48.95 Analysis 18 01/16/2026 BB A: 2:38.29 (+10.66s | 6.3%) 2 188 803 1,000+
50 Breast
38.48
38.48
100 Breast
42.67
1:21.15
100 Breast
1:21.15
150 Breast
43.89
2:05.04
200 Breast
43.91
2:48.95
100 Breast
1:27.80
Fly 50 Y 35.48 18 02/07/2020 B: 34.49 (+0.99s | 2.8%) 2 302 1,000+ 1,000+
Fly 100 Y 1:01.06 Analysis 18 02/14/2025 A AA: 1:00.39 (+0.67s | 1.1%) 1 119 514 1,000+
50 Fly
29.16
29.16
100 Fly
31.90
1:01.06
100 Fly
1:01.06
Fly 200 Y 2:15.44 Analysis 18 02/14/2025 A AA: 2:13.69 (+1.75s | 1.3%) 1 60 271 885
50 Fly
31.06
31.06
100 Fly
34.44
1:05.50
100 Fly
1:05.50
150 Fly
35.81
1:41.31
200 Fly
34.13
2:15.44
100 Fly
1:09.94
IM 200 Y 2:22.38 Analysis 18 10/17/2025 BB A: 2:20.19 (+2.19s | 1.5%) 2 176 857 1,000+
IM 400 Y 5:12.23 Analysis 18 10/18/2024 BB A: 5:00.59 (+11.64s | 3.7%) 2 151 646 1,000+
50 Fly
32.63
32.63
100 Fly
37.55
1:10.18
100 Fly
1:10.18
150 Back
40.17
1:50.35
200 Back
38.78
2:29.13
100 Back
1:18.95
250 Breast
46.91
3:16.04
300 Breast
46.39
4:02.43
100 Breast
1:33.30
350 Free
35.69
4:38.12
400 Free
34.11
5:12.23
100 Free
1:09.80

Long course distance

Event Time Age Date Standard Next Standard Carson Tigersharks Pacific Swimming Western Zone USA
Free 50 M 30.35 18 07/10/2026 A AA: 29.49 (+0.86s | 2.8%) 2 203 937 1,000+
Free 100 M 1:05.32 Analysis 18 07/10/2026 A AA: 1:03.89 (+1.43s | 2.2%) 2 170 790 1,000+
Free 200 M 2:33.20 Analysis 18 07/19/2023 BB A: 2:23.69 (+9.51s | 6.2%) 2 238 1,000+ 1,000+
50 Free
36.05
36.05
100 Free
39.09
1:15.14
100 Free
1:15.14
150 Free
39.21
1:54.35
200 Free
38.85
2:33.20
100 Free
1:18.06
Free 400 M 5:13.92 Analysis 18 05/22/2026 BB A: 5:02.99 (+10.93s | 3.5%) 2 151 716 1,000+
50 Free
36.93
36.93
100 Free
39.41
1:16.34
100 Free
1:16.34
150 Free
40.53
1:56.87
200 Free
39.74
2:36.61
100 Free
1:20.27
250 Free
40.05
3:16.66
300 Free
39.69
3:56.35
100 Free
1:19.74
350 Free
39.73
4:36.08
400 Free
37.84
5:13.92
100 Free
1:17.57
Back 50 M 35.15 18 07/10/2026 BB A: 35.09 (+0.06s | 0.2%) 1 77 467 1,000+
Back 100 M 1:19.09 Analysis 18 07/19/2023 BB A: 1:13.69 (+5.40s | 6.8%) 2 188 895 1,000+
50 Back
38.60
38.60
100 Back
40.49
1:19.09
100 Back
1:19.09
Back 200 M 2:46.43 Analysis 18 07/19/2023 BB A: 2:39.19 (+7.24s | 4.4%) 1 127 606 1,000+
50 Back
40.24
40.24
100 Back
42.45
1:22.69
100 Back
1:22.69
150 Back
42.47
2:05.16
200 Back
41.27
2:46.43
100 Back
1:23.74
Breast 50 M 44.38 18 05/22/2026 B BB: 42.29 (+2.09s | 4.7%) 2 118 668 1,000+
Breast 100 M 1:34.54 Analysis 18 05/22/2026 B BB: 1:30.49 (+4.05s | 4.3%) 2 225 956 1,000+
50 Breast
45.34
45.34
100 Breast
49.20
1:34.54
100 Breast
1:34.54
Breast 200 M 3:24.56 Analysis 18 05/23/2025 B BB: 3:14.99 (+9.57s | 4.7%) 2 176 739 1,000+
50 Breast
47.33
47.33
100 Breast
52.70
1:40.03
100 Breast
1:40.03
150 Breast
52.86
2:32.89
200 Breast
51.67
3:24.56
100 Breast
1:44.53
Fly 50 M 32.48 18 07/10/2026 A AA: 31.49 (+0.99s | 3.0%) 2 83 463 1,000+
Fly 100 M 1:10.43 Analysis 18 07/10/2026 A AA: 1:08.69 (+1.74s | 2.5%) 1 106 466 1,000+
50 Fly
33.35
33.35
100 Fly
37.08
1:10.43
100 Fly
1:10.43
Fly 200 M 3:03.70 Analysis 18 05/23/2025 B BB: 2:51.39 (+12.31s | 6.7%) 1 93 447 1,000+
50 Fly
38.94
38.94
100 Fly
46.28
1:25.22
100 Fly
1:25.22
150 Fly
49.98
2:15.20
200 Fly
48.50
3:03.70
100 Fly
1:38.48
IM 200 M 2:47.70 Analysis 18 05/22/2026 BB A: 2:42.29 (+5.41s | 3.2%) 2 168 830 1,000+
IM 400 M 5:57.12 Analysis 18 06/20/2025 BB A: 5:43.09 (+14.03s | 3.9%) 2 100 479 1,000+

Above are the fastest times that MacKenzie Pierce 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.