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Ryonosuke Jefferson

Age: 13 years old
Age Category: 13-14
Team: Sierra Nevada Swimming | Sierra Nevada Swimming

Personal Best

Short course distance

Event Time Age Date Standard Next Standard Sierra Nevada Swimming Sierra Nevada Swimming Western Zone USA
Free 50 Y 24.14 13 11/08/2025 AA AAA: 23.49 (+0.65s | 2.7%) 5 9 217 740
Free 100 Y 52.48 Analysis 13 07/25/2026 AA AAA: 51.09 (+1.39s | 2.6%) 4 5 159 584
50 Free
24.85
24.85
100 Free
27.63
52.48
100 Free
52.48
Free 200 Y 1:54.29 Analysis 13 11/08/2025 AA AAA: 1:51.99 (+2.30s | 2.0%) 3 4 109 424
50 Free
26.56
26.56
100 Free
29.27
55.83
100 Free
55.83
150 Free
29.66
1:25.49
200 Free
28.80
1:54.29
100 Free
58.46
Free 500 Y 5:14.51 Analysis 13 07/25/2026 AA AAA: 5:03.09 (+11.42s | 3.6%) 3 3 164 590
50 Free
27.91
27.91
100 Free
30.72
58.63
100 Free
58.63
150 Free
31.26
1:29.89
200 Free
31.22
2:01.11
100 Free
1:02.48
250 Free
31.77
2:32.88
300 Free
32.36
3:05.24
100 Free
1:04.13
350 Free
32.72
3:37.96
400 Free
31.50
4:09.46
100 Free
1:04.22
450 Free
32.27
4:41.73
500 Free
32.78
5:14.51
100 Free
1:05.05
Free 1650 Y 17:15.51 Analysis 13 04/09/2026 AAA AAAA: 16:47.19 (+28.32s | 2.7%) 1 1 20 88
50 Free
27.84
27.84
100 Free
30.26
58.10
100 Free
58.10
150 Free
30.97
1:29.07
200 Free
31.33
2:00.40
100 Free
1:02.30
250 Free
31.06
2:31.46
300 Free
31.35
3:02.81
100 Free
1:02.41
350 Free
31.26
3:34.07
400 Free
31.64
4:05.71
100 Free
1:02.90
450 Free
31.46
4:37.17
500 Free
31.48
5:08.65
100 Free
1:02.94
550 Free
31.80
5:40.45
600 Free
31.68
6:12.13
100 Free
1:03.48
650 Free
31.87
6:44.00
700 Free
31.81
7:15.81
100 Free
1:03.68
750 Free
31.38
7:47.19
800 Free
31.77
8:18.96
100 Free
1:03.15
850 Free
31.59
8:50.55
900 Free
31.80
9:22.35
100 Free
1:03.39
950 Free
31.68
9:54.03
1000 Free
31.62
10:25.65
100 Free
1:03.30
1050 Free
31.79
10:57.44
1100 Free
31.80
11:29.24
100 Free
1:03.59
1150 Free
31.77
12:01.01
1200 Free
31.62
12:32.63
100 Free
1:03.39
1250 Free
31.32
13:03.95
1300 Free
32.16
13:36.11
100 Free
1:03.48
1350 Free
31.83
14:07.94
1400 Free
31.49
14:39.43
100 Free
1:03.32
1450 Free
31.51
15:10.94
1500 Free
31.29
15:42.23
100 Free
1:02.80
1550 Free
31.75
16:13.98
1600 Free
31.98
16:45.96
100 Free
1:03.73
1650 Free
29.55
17:15.51
Back 50 Y 29.54 13 07/25/2026 BB A: 28.89 (+0.65s | 2.2%) 3 9 355 1,000+
Breast 50 Y 37.06 13 11/09/2024 B BB: 35.79 (+1.27s | 3.4%) 9 27 1,000+ 1,000+
Breast 100 Y 1:20.91 Analysis 13 11/09/2024 B: 1:20.49 (+0.42s | 0.5%) 8 30 1,000+ 1,000+
50 Breast
39.94
39.94
100 Breast
40.97
1:20.91
100 Breast
1:20.91
Breast 200 Y 2:29.79 Analysis 13 01/17/2026 A AA: 2:23.59 (+6.20s | 4.1%) 7 8 230 721
50 Breast
33.13
33.13
100 Breast
38.79
1:11.92
100 Breast
1:11.92
150 Breast
39.49
1:51.41
200 Breast
38.38
2:29.79
100 Breast
1:17.87
Fly 50 Y 28.14 13 11/08/2025 A AA: 27.19 (+0.95s | 3.4%) 4 10 408 1,000+
Fly 100 Y 59.53 Analysis 13 01/17/2026 A AA: 57.89 (+1.64s | 2.8%) 4 5 229 779
50 Fly
28.81
28.81
100 Fly
30.72
59.53
100 Fly
59.53
IM 200 Y 2:10.90 Analysis 13 01/17/2026 A AA: 2:09.79 (+1.11s | 0.8%) 6 7 187 614
50 Fly
26.91
26.91
100 Back
34.46
1:01.37
100 IM
1:01.37
150 Breast
39.52
1:40.89
200 Free
30.01
2:10.90
100 IM
1:09.53
IM 400 Y 4:52.39 Analysis 13 07/25/2026 BB A: 4:49.49 (+2.90s | 1.0%) 5 8 283 933
50 Fly
29.15
29.15
100 Fly
33.30
1:02.45
100 Fly
1:02.45
150 Back
38.80
1:41.25
200 Back
37.75
2:19.00
100 Back
1:16.55
250 Breast
44.60
3:03.60
300 Breast
43.63
3:47.23
100 Breast
1:28.23
350 Free
32.29
4:19.52
400 Free
32.87
4:52.39
100 Free
1:05.16

Long course distance

Event Time Age Date Standard Next Standard Sierra Nevada Swimming Sierra Nevada Swimming Western Zone USA
Free 50 M 28.14 13 08/06/2025 AA AAA: 26.89 (+1.25s | 4.4%) 11 15 394 1,000+
Free 100 M 1:00.04 Analysis 13 08/05/2026 AA AAA: 58.99 (+1.05s | 1.7%) 8 11 242 701
Free 200 M 2:11.46 Analysis 13 08/05/2026 AA AAA: 2:08.89 (+2.57s | 2.0%) 7 8 190 570
100 Free
1:04.07
1:04.07
100 Free
1:04.07
200 Free
1:07.39
2:11.46
100 Free
1:07.39
Free 400 M 4:32.86 Analysis 13 08/05/2026 AAA AAAA: 4:21.29 (+11.57s | 4.2%) 4 5 84 266
100 Free
1:04.89
1:04.89
100 Free
1:04.89
200 Free
1:09.99
2:14.88
100 Free
1:09.99
300 Free
1:10.05
3:24.93
100 Free
1:10.05
400 Free
1:07.93
4:32.86
100 Free
1:07.93
Free 800 M 9:45.67 Analysis 13 08/05/2026 AA AAA: 9:26.19 (+19.48s | 3.3%) 2 3 108 327
50 Free
32.92
32.92
100 Free
34.51
1:07.43
100 Free
1:07.43
150 Free
36.47
1:43.90
200 Free
35.97
2:19.87
100 Free
1:12.44
250 Free
37.17
2:57.04
300 Free
36.07
3:33.11
100 Free
1:13.24
350 Free
36.33
4:09.44
400 Free
37.28
4:46.72
100 Free
1:13.61
450 Free
37.60
5:24.32
500 Free
37.51
6:01.83
100 Free
1:15.11
550 Free
37.66
6:39.49
600 Free
36.50
7:15.99
100 Free
1:14.16
650 Free
37.57
7:53.56
700 Free
37.90
8:31.46
100 Free
1:15.47
750 Free
37.96
9:09.42
800 Free
36.25
9:45.67
100 Free
1:14.21
Free 1500 M 18:20.82 Analysis 13 08/05/2026 AA AAA: 18:07.89 (+12.93s | 1.2%) 1 1 55 203
50 Free
31.09
31.09
100 Free
34.32
1:05.41
100 Free
1:05.41
150 Free
35.52
1:40.93
200 Free
35.76
2:16.69
100 Free
1:11.28
250 Free
36.56
2:53.25
300 Free
36.73
3:29.98
100 Free
1:13.29
350 Free
36.97
4:06.95
400 Free
37.06
4:44.01
100 Free
1:14.03
450 Free
37.26
5:21.27
500 Free
37.28
5:58.55
100 Free
1:14.54
550 Free
37.48
6:36.03
600 Free
37.03
7:13.06
100 Free
1:14.51
650 Free
37.04
7:50.10
700 Free
37.06
8:27.16
100 Free
1:14.10
750 Free
37.06
9:04.22
800 Free
36.95
9:41.17
100 Free
1:14.01
850 Free
36.97
10:18.14
900 Free
36.93
10:55.07
100 Free
1:13.90
950 Free
37.13
11:32.20
1000 Free
37.11
12:09.31
100 Free
1:14.24
1050 Free
37.48
12:46.79
1100 Free
37.59
13:24.38
100 Free
1:15.07
1150 Free
37.86
14:02.24
1200 Free
37.66
14:39.90
100 Free
1:15.52
1250 Free
37.96
15:17.86
1300 Free
37.80
15:55.66
100 Free
1:15.76
1350 Free
37.69
16:33.35
1400 Free
36.99
17:10.34
100 Free
1:14.68
1450 Free
37.07
17:47.41
1500 Free
33.41
18:20.82
100 Free
1:10.48
Fly 50 M 30.42 13 08/05/2026 AA AAA: 29.29 (+1.13s | 3.7%) 8 11 318 856
Fly 100 M 1:07.81 Analysis 13 08/06/2025 A AA: 1:05.99 (+1.82s | 2.7%) 6 7 270 749
50 Fly
32.25
32.25
100 Fly
35.55
1:07.81
100 Fly
1:07.81
IM 200 M 2:33.63 Analysis 13 08/06/2025 A AA: 2:30.19 (+3.44s | 2.2%) 8 11 348 941
IM 400 M 5:28.96 Analysis 13 08/06/2025 A AA: 5:20.89 (+8.07s | 2.5%) 7 8 237 653
100 Fly
1:12.76
1:12.76
100 Fly
1:12.76
200 Back
1:29.38
2:42.14
100 Back
1:29.38
300 Breast
1:35.99
4:18.13
100 Breast
1:35.99
400 Free
1:10.83
5:28.96
100 Free
1:10.83

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