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Ryonosuke Jefferson

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

Personal Best

Short course distance

Event Time Age Date Standard Next Standard Dart Swimming Sierra Nevada Swimming Western Zone USA
Free 50 Y 24.14 13 11/08/2025 AA AAA: 23.49 (+0.65s | 2.7%) 3 13 269 910
Free 100 Y 53.17 Analysis 13 11/08/2025 AA AAA: 51.09 (+2.08s | 3.9%) 1 7 289 1,000+
50 Free
25.64
25.64
100 Free
27.53
53.17
100 Free
53.17
Free 200 Y 1:54.29 Analysis 13 11/08/2025 AA AAA: 1:51.99 (+2.30s | 2.0%) 1 6 166 593
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 5:23.78 Analysis 13 07/26/2025 A AA: 5:16.89 (+6.89s | 2.1%) 2 10 373 1,000+
50 Free
3:11.18
3:11.18
50 Free
3:11.18
100 Free
33.60
3:44.78
50 Free
33.60
150 Free
33.23
4:18.01
50 Free
33.23
200 Free
33.55
4:51.56
50 Free
33.55
250 Free
32.22
5:23.78
50 Free
32.22
Free 1650 Y 17:15.51 Analysis 13 04/09/2026 AAA AAAA: 16:47.19 (+28.32s | 2.7%) 1 1 32 126
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
Breast 50 Y 37.06 13 11/09/2024 5 25 1,000+ 1,000+
Breast 100 Y 1:20.91 Analysis 13 11/09/2024 B: 1:20.49 (+0.42s | 0.5%) 3 28 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%) 3 11 291 904
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 1 11 475 1,000+
Fly 100 Y 59.53 Analysis 13 01/17/2026 A AA: 57.89 (+1.64s | 2.8%) 3 9 301 1,000+
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%) 2 11 257 816
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

Long course distance

Event Time Age Date Standard Next Standard Dart Swimming Sierra Nevada Swimming Western Zone USA
Free 50 M 28.14 13 08/06/2025 AA AAA: 26.89 (+1.25s | 4.4%) 2 6 223 498
Free 100 M 1:00.69 Analysis 13 08/06/2025 AA AAA: 58.99 (+1.70s | 2.8%) 2 6 165 362
50 Free
28.87
28.87
100 Free
31.82
1:00.69
100 Free
1:00.69
Free 200 M 2:11.68 Analysis 13 08/06/2025 AA AAA: 2:08.89 (+2.79s | 2.1%) 1 1 112 252
50 Free
30.74
30.74
100 Free
33.13
1:03.87
100 Free
1:03.87
150 Free
34.31
1:38.18
200 Free
33.50
2:11.68
100 Free
1:07.81
Free 400 M 4:41.56 Analysis 13 08/06/2025 AA AAA: 4:33.79 (+7.77s | 2.8%) 1 4 109 254
100 Free
1:08.18
1:08.18
100 Free
1:08.18
200 Free
1:11.25
2:19.43
100 Free
1:11.25
300 Free
1:11.45
3:30.88
100 Free
1:11.45
400 Free
1:10.68
4:41.56
100 Free
1:10.68
Fly 100 M 1:07.81 Analysis 13 08/06/2025 A AA: 1:05.99 (+1.82s | 2.7%) 1 2 161 324
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%) 1 4 225 444
IM 400 M 5:28.96 Analysis 13 08/06/2025 A AA: 5:20.89 (+8.07s | 2.5%) 2 5 142 309
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.