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Ella Rosenfeld

Age: 17 years old
Age Category: 17-18
Team: Palo Alto Stanford Aquatics | Pacific Swimming

Personal Best

Short course distance

Event Time Age Date Standard Next Standard Palo Alto Stanford Aquatics Pacific Swimming Western Zone USA
Free 50 Y 27.18 17 01/24/2026 BB A: 26.89 (+0.29s | 1.1%) 30 268 1,000+ 1,000+
Free 100 Y 57.77 Analysis 17 11/01/2025 A AA: 55.89 (+1.88s | 3.3%) 29 211 1,000+ 1,000+
Free 200 Y 2:02.10 Analysis 17 03/29/2025 A AA: 2:00.89 (+1.21s | 1.0%) 22 141 673 1,000+
50 Free
29.09
29.09
100 Free
30.97
1:00.06
100 Free
1:00.06
150 Free
31.19
1:31.25
200 Free
30.85
2:02.10
100 Free
1:02.04
Free 500 Y 5:22.13 Analysis 17 01/31/2026 AA AAA: 5:11.59 (+10.54s | 3.3%) 17 78 387 1,000+
50 Free
31.02
31.02
100 Free
32.20
1:03.22
100 Free
1:03.22
150 Free
32.76
1:35.98
200 Free
32.47
2:08.45
100 Free
1:05.23
250 Free
33.21
2:41.66
300 Free
32.58
3:14.24
100 Free
1:05.79
350 Free
32.10
3:46.34
400 Free
32.15
4:18.49
100 Free
1:04.25
450 Free
32.27
4:50.76
500 Free
31.37
5:22.13
100 Free
1:03.64
Free 1000 Y 11:14.90 Analysis 17 02/01/2025 AA AAA: 10:49.09 (+25.81s | 3.8%) 12 54 253 737
50 Free
30.72
30.72
100 Free
33.17
1:03.89
100 Free
1:03.89
150 Free
33.85
1:37.74
200 Free
34.52
2:12.26
100 Free
1:08.37
250 Free
34.02
2:46.28
300 Free
33.63
3:19.91
100 Free
1:07.65
350 Free
34.32
3:54.23
400 Free
33.55
4:27.78
100 Free
1:07.87
450 Free
33.34
5:01.12
500 Free
33.18
5:34.30
100 Free
1:06.52
550 Free
33.03
6:07.33
600 Free
33.19
6:40.52
100 Free
1:06.22
650 Free
34.08
7:14.60
700 Free
33.89
7:48.49
100 Free
1:07.97
750 Free
34.37
8:22.86
800 Free
34.38
8:57.24
100 Free
1:08.75
850 Free
34.28
9:31.52
900 Free
34.99
10:06.51
100 Free
1:09.27
950 Free
34.25
10:40.76
1000 Free
34.14
11:14.90
100 Free
1:08.39
Free 1650 Y 19:22.89 Analysis 17 11/11/2023 A AA: 18:43.09 (+39.80s | 3.4%) 14 71 276 695
50 Free
31.88
31.88
100 Free
34.00
1:05.88
100 Free
1:05.88
150 Free
34.69
1:40.57
200 Free
34.69
2:15.26
100 Free
1:09.38
250 Free
34.93
2:50.19
300 Free
34.78
3:24.97
100 Free
1:09.71
350 Free
34.64
3:59.61
400 Free
34.79
4:34.40
100 Free
1:09.43
450 Free
34.37
5:08.77
500 Free
34.90
5:43.67
100 Free
1:09.27
550 Free
34.99
6:18.66
650 Free
1:11.93
7:30.59
700 Free
35.31
8:05.90
100 Free
1:47.24
750 Free
36.32
8:42.22
800 Free
35.37
9:17.59
100 Free
1:11.69
850 Free
36.03
9:53.62
900 Free
35.79
10:29.41
100 Free
1:11.82
950 Free
35.83
11:05.24
1000 Free
36.28
11:41.52
100 Free
1:12.11
1050 Free
35.25
12:16.77
1100 Free
36.46
12:53.23
100 Free
1:11.71
1150 Free
35.36
13:28.59
1200 Free
35.49
14:04.08
100 Free
1:10.85
1250 Free
35.88
14:39.96
1300 Free
35.71
15:15.67
100 Free
1:11.59
1350 Free
34.77
15:50.44
1400 Free
36.29
16:26.73
100 Free
1:11.06
1450 Free
35.87
17:02.60
1500 Free
35.84
17:38.44
100 Free
1:11.71
1550 Free
35.19
18:13.63
1600 Free
34.96
18:48.59
100 Free
1:10.15
1650 Free
34.30
19:22.89
Back 50 Y 37.65 17 10/08/2021 30 285 1,000+ 1,000+
Back 100 Y 1:04.91 Analysis 17 10/25/2025 BB A: 1:02.89 (+2.02s | 3.1%) 23 150 775 1,000+
50 Back
32.00
32.00
100 Back
32.91
1:04.91
100 Back
1:04.91
Back 200 Y 2:25.12 Analysis 17 01/13/2024 BB A: 2:16.09 (+9.03s | 6.2%) 21 163 791 1,000+
50 Back
34.02
34.02
100 Back
36.71
1:10.73
100 Back
1:10.73
150 Back
37.48
1:48.21
200 Back
36.91
2:25.12
100 Back
1:14.39
Breast 50 Y 42.57 17 10/08/2021 30 285 968 1,000+
Breast 100 Y 1:13.83 Analysis 17 01/24/2026 BB A: 1:12.69 (+1.14s | 1.5%) 21 147 659 1,000+
50 Breast
35.09
35.09
100 Breast
38.74
1:13.83
100 Breast
1:13.83
Breast 200 Y 2:42.02 Analysis 17 09/20/2025 BB A: 2:38.29 (+3.73s | 2.3%) 20 137 570 1,000+
Fly 50 Y 36.71 17 10/08/2021 32 302 1,000+ 1,000+
Fly 100 Y 1:00.41 Analysis 17 11/01/2025 A AA: 1:00.39 (+0.02s | 0.0%) 16 101 449 1,000+
Fly 200 Y 2:10.71 Analysis 17 11/01/2025 AA AAA: 2:07.89 (+2.82s | 2.2%) 9 33 160 480
IM 200 Y 2:18.20 Analysis 17 01/24/2026 A AA: 2:14.39 (+3.81s | 2.8%) 25 129 600 1,000+
50 Fly
29.54
29.54
100 Back
35.97
1:05.51
100 IM
1:05.51
150 Breast
40.62
1:46.13
200 Free
32.07
2:18.20
100 IM
1:12.69
IM 400 Y 4:49.27 Analysis 17 10/25/2025 A AA: 4:47.99 (+1.28s | 0.4%) 20 77 327 969
50 Fly
30.47
30.47
100 Fly
34.07
1:04.54
100 Fly
1:04.54
150 Back
38.30
1:42.84
200 Back
37.09
2:19.93
100 Back
1:15.39
250 Breast
42.76
3:02.69
300 Breast
43.12
3:45.81
100 Breast
1:25.88
350 Free
32.39
4:18.20
400 Free
31.07
4:49.27
100 Free
1:03.46

Long course distance

Event Time Age Date Standard Next Standard Palo Alto Stanford Aquatics Pacific Swimming Western Zone USA
Free 50 M 31.14 17 07/19/2025 BB A: 30.69 (+0.45s | 1.4%) 31 238 1,000+ 1,000+
Free 100 M 1:07.09 Analysis 17 06/29/2024 BB A: 1:06.59 (+0.50s | 0.7%) 28 201 915 1,000+
Free 200 M 2:19.73 Analysis 17 07/22/2023 A AA: 2:17.69 (+2.04s | 1.5%) 22 102 494 1,000+
Free 400 M 4:53.59 Analysis 17 05/24/2024 A AA: 4:50.29 (+3.30s | 1.1%) 17 72 345 781
50 Free
34.02
34.02
100 Free
37.01
1:11.03
100 Free
1:11.03
150 Free
37.61
1:48.64
200 Free
37.57
2:26.21
100 Free
1:15.18
250 Free
37.58
3:03.79
300 Free
36.75
3:40.54
100 Free
1:14.33
350 Free
37.21
4:17.75
400 Free
35.84
4:53.59
100 Free
1:13.05
Free 800 M 10:23.38 Analysis 17 07/07/2023 A AA: 9:59.89 (+23.49s | 3.8%) 13 55 281 605
50 Free
34.81
34.81
100 Free
38.83
1:13.64
100 Free
1:13.64
150 Free
39.79
1:53.43
200 Free
38.97
2:32.40
100 Free
1:18.76
250 Free
39.09
3:11.50
300 Free
38.85
3:50.35
100 Free
1:17.94
350 Free
38.75
4:29.10
400 Free
38.79
5:07.89
100 Free
1:17.54
450 Free
39.09
5:46.98
500 Free
38.87
6:25.85
100 Free
1:17.96
550 Free
39.26
7:05.11
600 Free
39.94
7:45.05
100 Free
1:19.20
650 Free
39.74
8:24.79
700 Free
39.37
9:04.16
100 Free
1:19.11
750 Free
41.18
9:45.34
800 Free
38.04
10:23.38
100 Free
1:19.22
Free 1500 M 19:58.52 Analysis 17 06/09/2023 A AA: 19:10.79 (+47.73s | 4.0%) 7 42 221 452
Back 50 M 44.24 17 06/26/2021 23 173 819 1,000+
Back 100 M 1:20.72 Analysis 17 06/29/2024 B BB: 1:19.79 (+0.93s | 1.2%) 24 209 877 1,000+
Back 200 M 2:46.85 Analysis 17 05/24/2024 BB A: 2:39.19 (+7.66s | 4.6%) 19 128 559 1,000+
50 Back
38.37
38.37
100 Back
41.89
1:20.26
100 Back
1:20.26
150 Back
42.99
2:03.25
200 Back
43.60
2:46.85
100 Back
1:26.59
Breast 50 M 50.31 17 06/26/2021 17 153 622 1,000+
Breast 100 M 1:27.44 Analysis 17 07/19/2025 BB A: 1:23.59 (+3.85s | 4.4%) 20 125 536 1,000+
Breast 200 M 3:09.75 Analysis 17 06/29/2024 BB A: 2:59.99 (+9.76s | 5.1%) 14 108 452 968
Fly 50 M 33.11 17 07/22/2023 13 53 308 806
Fly 100 M 1:09.60 Analysis 17 06/27/2025 A AA: 1:08.69 (+0.91s | 1.3%) 13 74 360 803
Fly 200 M 2:30.61 Analysis 17 07/31/2025 AA AAA: 2:24.99 (+5.62s | 3.7%) 6 27 122 284
50 Fly
32.72
32.72
100 Fly
38.38
1:11.11
100 Fly
1:11.11
150 Fly
39.43
1:50.54
200 Fly
40.07
2:30.61
100 Fly
1:19.50
IM 200 M 2:42.06 Analysis 17 06/06/2025 A AA: 2:35.49 (+6.57s | 4.1%) 25 127 576 1,000+
IM 400 M 5:32.87 Analysis 17 06/07/2024 A AA: 5:28.79 (+4.08s | 1.2%) 15 55 254 566

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