Ann Tjeerdsma

Age: 16 years old
Age Category: 15-16
Team: Pierre Swim Team | South Dakota Swimming

Personal Best

Short course distance

Event Time Age Date Standard Next Standard Pierre Swim Team South Dakota Swimming Central Zone USA
Free 50 Y 28.51 15 01/04/2025 BB A: 27.29 (+1.22s | 4.3%) 2 41 862 1,000+
Free 100 Y 1:01.76 15 11/08/2025 BB A: 58.89 (+2.87s | 4.6%) 1 37 761 1,000+
50 Free
29.85
29.85
100 Free
31.91
1:01.76
100 Free
1:01.76
Free 200 Y 2:15.24 15 11/08/2025 BB A: 2:07.69 (+7.55s | 5.6%) 1 30 616 1,000+
50 Free
31.38
31.38
100 Free
33.85
1:05.23
100 Free
1:05.23
150 Free
35.18
1:40.41
200 Free
34.83
2:15.24
100 Free
1:10.01
Free 500 Y 6:09.60 16 01/30/2026 BB A: 5:43.69 (+25.91s | 7.0%) 1 32 462 1,000+
50 Free
32.84
32.84
100 Free
36.12
1:08.96
100 Free
1:08.96
150 Free
37.02
1:45.98
200 Free
37.60
2:23.58
100 Free
1:14.62
250 Free
37.91
3:01.49
300 Free
38.29
3:39.78
100 Free
1:16.20
350 Free
37.98
4:17.76
400 Free
38.49
4:56.25
100 Free
1:16.47
450 Free
38.05
5:34.30
500 Free
35.30
6:09.60
100 Free
1:13.35
Free 1000 Y 13:30.90 15 02/27/2025 B BB: 12:53.49 (+37.41s | 4.6%) 1 33 259 1,000+
50 Free
36.92
36.92
100 Free
39.63
1:16.55
100 Free
1:16.55
150 Free
40.26
1:56.81
200 Free
41.71
2:38.52
100 Free
1:21.97
250 Free
41.54
3:20.06
300 Free
41.53
4:01.59
100 Free
1:23.07
350 Free
41.23
4:42.82
400 Free
41.77
5:24.59
100 Free
1:23.00
450 Free
41.07
6:05.66
500 Free
41.65
6:47.31
100 Free
1:22.72
550 Free
41.31
7:28.62
600 Free
40.96
8:09.58
100 Free
1:22.27
650 Free
40.58
8:50.16
700 Free
40.72
9:30.88
100 Free
1:21.30
750 Free
41.33
10:12.21
800 Free
40.87
10:53.08
100 Free
1:22.20
850 Free
40.77
11:33.85
900 Free
39.95
12:13.80
100 Free
1:20.72
950 Free
39.89
12:53.69
1000 Free
37.21
13:30.90
100 Free
1:17.10
Free 1650 Y 21:49.89 15 12/13/2024 B BB: 21:36.19 (+13.70s | 1.0%) 1 16 160 1,000+
25 Free
35.01
35.01
75 Free
38.59
1:13.60
100 Free
19.10
1:32.70
50 Free
57.69
125 Free
19.51
1:52.21
150 Free
19.46
2:11.67
50 Free
38.97
175 Free
19.40
2:31.07
200 Free
19.65
2:50.72
50 Free
39.05
225 Free
19.60
3:10.32
250 Free
20.07
3:30.39
50 Free
39.67
275 Free
19.96
3:50.35
300 Free
19.99
4:10.34
50 Free
39.95
325 Free
19.94
4:30.28
350 Free
20.64
4:50.92
50 Free
40.58
375 Free
19.89
5:10.81
400 Free
20.31
5:31.12
50 Free
40.20
425 Free
19.93
5:51.05
450 Free
20.33
6:11.38
50 Free
40.26
475 Free
20.10
6:31.48
500 Free
20.20
6:51.68
50 Free
40.30
525 Free
19.96
7:11.64
550 Free
20.47
7:32.11
50 Free
40.43
575 Free
19.71
7:51.82
600 Free
20.81
8:12.63
50 Free
40.52
625 Free
19.94
8:32.57
650 Free
20.49
8:53.06
50 Free
40.43
675 Free
20.10
9:13.16
700 Free
20.59
9:33.75
50 Free
40.69
725 Free
20.01
9:53.76
750 Free
20.54
10:14.30
50 Free
40.55
775 Free
20.08
10:34.38
800 Free
20.79
10:55.17
50 Free
40.87
825 Free
20.24
11:15.41
850 Free
20.58
11:35.99
50 Free
40.82
875 Free
20.60
11:56.59
900 Free
20.75
12:17.34
50 Free
41.35
925 Free
20.02
12:37.36
950 Free
20.71
12:58.07
50 Free
40.73
975 Free
19.60
13:17.67
1000 Free
20.01
13:37.68
50 Free
39.61
1025 Free
19.24
13:56.92
1050 Free
19.89
14:16.81
50 Free
39.13
1075 Free
19.19
14:36.00
1100 Free
19.49
14:55.49
50 Free
38.68
1125 Free
19.80
15:15.29
1150 Free
19.98
15:35.27
50 Free
39.78
1175 Free
19.82
15:55.09
1200 Free
19.84
16:14.93
50 Free
39.66
1225 Free
19.71
16:34.64
1250 Free
20.31
16:54.95
50 Free
40.02
1275 Free
20.10
17:15.05
1300 Free
20.31
17:35.36
50 Free
40.41
1325 Free
20.26
17:55.62
1350 Free
20.77
18:16.39
50 Free
41.03
1375 Free
20.17
18:36.56
1400 Free
20.66
18:57.22
50 Free
40.83
1425 Free
19.75
19:16.97
1450 Free
19.61
19:36.58
50 Free
39.36
1475 Free
19.50
19:56.08
1500 Free
19.95
20:16.03
50 Free
39.45
1525 Free
19.45
20:35.48
1550 Free
19.99
20:55.47
50 Free
39.44
1575 Free
18.61
21:14.08
1600 Free
18.67
21:32.75
50 Free
37.28
1625 Free
17.14
21:49.89
Back 50 Y 16.99 13 12/01/2023 1 2 2 7
Back 100 Y 1:09.81 15 12/13/2024 B BB: 1:09.39 (+0.42s | 0.6%) 1 24 534 1,000+
50 Back
34.29
34.29
100 Back
35.52
1:09.81
100 Back
1:09.81
Back 200 Y 2:28.76 15 12/13/2024 BB A: 2:19.09 (+9.67s | 6.5%) 1 19 349 1,000+
25 Back
17.66
17.66
50 Back
18.77
36.43
50 Back
36.43
75 Back
19.15
55.58
100 Back
19.85
1:15.43
50 Back
39.00
125 Back
19.64
1:35.07
150 Back
20.50
1:55.57
50 Back
40.14
175 Back
20.24
2:15.81
200 Back
12.95
2:28.76
50 Back
33.19
Breast 50 Y 39.14 16 01/30/2026 2 27 332 1,000+
Breast 100 Y 1:25.59 16 01/30/2026 B BB: 1:19.79 (+5.80s | 6.8%) 2 35 637 1,000+
50 Breast
40.84
40.84
100 Breast
44.75
1:25.59
100 Breast
1:25.59
Breast 200 Y 3:08.38 15 01/25/2025 B: 3:05.99 (+2.39s | 1.3%) 2 32 457 1,000+
50 Breast
42.82
42.82
100 Breast
47.65
1:30.47
100 Breast
1:30.47
150 Breast
49.74
2:20.21
200 Breast
48.17
3:08.38
100 Breast
1:37.91
Fly 50 Y 31.51 16 01/30/2026 1 20 353 1,000+
Fly 100 Y 1:16.98 15 11/08/2025 B: 1:14.39 (+2.59s | 3.4%) 2 38 709 1,000+
50 Fly
34.25
34.25
100 Fly
42.73
1:16.98
100 Fly
1:16.98
IM 200 Y 2:37.99 16 01/30/2026 B BB: 2:34.29 (+3.70s | 2.3%) 1 36 617 1,000+
50 Fly
33.76
33.76
100 Back
40.34
1:14.10
100 IM
1:14.10
150 Breast
48.36
2:02.46
200 Free
35.53
2:37.99
100 IM
1:23.89
IM 400 Y 5:43.93 15 01/04/2025 B BB: 5:29.69 (+14.24s | 4.1%) 1 25 300 1,000+
50 Fly
37.83
37.83
100 Fly
44.37
1:22.20
100 Fly
1:22.20
150 Back
42.79
2:04.99
200 Back
42.36
2:47.35
100 Back
1:25.15
250 Breast
50.53
3:37.88
300 Breast
50.35
4:28.23
100 Breast
1:40.88
350 Free
39.23
5:07.46
400 Free
36.47
5:43.93
100 Free
1:15.70

Long course distance

Event Time Age Date Standard Next Standard Pierre Swim Team South Dakota Swimming Central Zone USA
Free 50 M 34.14 13 06/23/2023 B BB: 33.49 (+0.65s | 1.9%) 2 72 902 1,000+
Free 100 M 1:14.43 13 06/23/2023 B BB: 1:12.79 (+1.64s | 2.2%) 1 50 818 1,000+
Free 200 M 2:47.51 14 06/29/2024 B BB: 2:37.09 (+10.42s | 6.2%) 1 44 620 1,000+
50 Free
38.48
38.48
100 Free
43.03
1:21.51
100 Free
1:21.51
150 Free
43.75
2:05.26
200 Free
42.25
2:47.51
100 Free
1:26.00
Free 400 M 5:51.31 13 06/23/2023 B BB: 5:29.89 (+21.42s | 6.1%) 1 37 463 1,000+
Free 800 M 12:30.00 15 06/28/2025 B: 12:17.79 (+12.21s | 1.6%) 1 34 278 1,000+
50 Free
42.15
42.15
100 Free
46.27
1:28.42
100 Free
1:28.42
150 Free
47.65
2:16.07
200 Free
48.52
3:04.59
100 Free
1:36.17
250 Free
48.32
3:52.91
300 Free
47.79
4:40.70
100 Free
1:36.11
350 Free
48.14
5:28.84
400 Free
48.02
6:16.86
100 Free
1:36.16
450 Free
47.28
7:04.14
500 Free
47.44
7:51.58
100 Free
1:34.72
550 Free
48.16
8:39.74
600 Free
47.38
9:27.12
100 Free
1:35.54
650 Free
47.94
10:15.06
700 Free
45.81
11:00.87
100 Free
1:33.75
750 Free
30.79
11:31.66
800 Free
58.34
12:30.00
100 Free
1:29.13
Back 50 M 38.87 12 11/19/2022 1 29 396 1,000+
Back 100 M 1:26.14 14 06/29/2024 B BB: 1:20.69 (+5.45s | 6.3%) 1 37 597 1,000+
50 Back
41.82
41.82
100 Back
44.32
1:26.14
100 Back
1:26.14
Back 200 M 3:08.01 13 06/23/2023 B: 3:06.79 (+1.22s | 0.6%) 1 33 411 1,000+
Breast 50 M 47.35 12 11/19/2022 3 29 373 1,000+
Breast 100 M 1:43.29 14 06/08/2024 B: 1:38.59 (+4.70s | 4.6%) 2 44 571 1,000+
50 Breast
49.92
49.92
100 Breast
53.37
1:43.29
100 Breast
1:43.29
Fly 25 M 28.45 8 11/17/2018 2 5 5 8
Fly 50 M 39.39 12 11/19/2022 2 35 476 1,000+
Fly 100 M 1:35.78 13 06/23/2023 B: 1:24.29 (+11.49s | 12.0%) 2 48 515 1,000+
IM 200 M 3:09.70 12 11/19/2022 B BB: 2:57.49 (+12.21s | 6.4%) 1 42 519 1,000+
50 Fly
41.12
41.12
100 Back
46.36
1:27.48
100 IM
1:27.48
150 Breast
59.73
2:27.21
200 Free
42.49
3:09.70
100 IM
1:42.22
IM 400 M 7:06.82 14 06/29/2024 B: 6:44.69 (+22.13s | 5.2%) 2 34 267 1,000+
50 Fly
46.03
46.03
100 Fly
59.85
1:45.88
100 Fly
1:45.88
150 Back
55.29
2:41.17
200 Back
54.22
3:35.39
100 Back
1:49.51
250 Breast
59.27
4:34.66
300 Breast
1:01.82
5:36.48
100 Breast
2:01.09
350 Free
47.51
6:23.99
400 Free
42.83
7:06.82
100 Free
1:30.34

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