New! ScoreMeUp is now available on the App Store. Download the iOS app →

Tatsumasa Sekine

Age: 9 years old
Age Category: 10 & under
Team: Santa Clara Swim Club | Pacific Swimming

Personal Best

Short course distance

Event Time Age Date Standard Next Standard Santa Clara Swim Club Pacific Swimming Western Zone USA
Free 25 Y 15.27 9 01/16/2026 9 23 42 120
Free 50 Y 31.03 9 03/20/2026 A AA: 29.89 (+1.14s | 3.7%) 6 45 236 1,000+
Free 100 Y 1:08.53 Analysis 9 04/09/2026 A AA: 1:06.79 (+1.74s | 2.5%) 6 34 185 789
50 Free
32.40
32.40
100 Free
36.12
1:08.53
100 Free
1:08.53
Free 200 Y 2:45.86 Analysis 9 02/28/2026 BB A: 2:31.59 (+14.27s | 8.6%) 13 69 328 1,000+
Free 500 Y 7:15.08 Analysis 9 12/12/2025 BB A: 6:43.39 (+31.69s | 7.3%) 9 43 150 799
50 Free
35.70
35.70
100 Free
43.36
1:19.06
100 Free
1:19.06
150 Free
44.63
2:03.69
200 Free
44.80
2:48.49
100 Free
1:29.43
250 Free
44.05
3:32.54
300 Free
45.35
4:17.89
100 Free
1:29.40
350 Free
45.98
5:03.87
400 Free
45.19
5:49.06
100 Free
1:31.17
450 Free
44.91
6:33.97
500 Free
41.11
7:15.08
100 Free
1:26.02
Back 25 Y 17.88 9 01/16/2026 4 9 14 41
Back 50 Y 35.79 9 04/09/2026 AA AAA: 33.99 (+1.80s | 5.0%) 6 24 110 442
Back 100 Y 1:19.49 Analysis 9 03/28/2026 A AA: 1:16.09 (+3.40s | 4.3%) 8 36 149 652
Breast 25 Y 20.76 9 01/16/2026 7 17 29 93
Breast 50 Y 42.68 9 04/26/2026 BB A: 42.09 (+0.59s | 1.4%) 10 58 171 598
Breast 100 Y 1:30.51 Analysis 9 03/28/2026 A AA: 1:26.59 (+3.92s | 4.3%) 7 32 156 656
Fly 25 Y 15.26 9 01/16/2026 2 4 6 11
Fly 50 Y 31.94 9 04/09/2026 AAA AAAA: 30.79 (+1.15s | 3.6%) 3 15 33 98
Fly 100 Y 1:13.74 Analysis 9 03/20/2026 AAA AAAA: 1:09.79 (+3.95s | 5.4%) 2 13 65 311
50 Fly
34.33
34.33
100 Fly
39.41
1:13.74
100 Fly
1:13.74
IM 100 Y 1:15.55 Analysis 9 04/09/2026 AA AAA: 1:13.09 (+2.46s | 3.3%) 5 21 56 184
50 IM
35.35
35.35
100 IM
40.20
1:15.55
100 IM
1:15.55
IM 200 Y 2:45.32 Analysis 9 02/28/2026 AA AAA: 2:38.39 (+6.93s | 4.2%) 6 24 98 426

Long course distance

Event Time Age Date Standard Next Standard Santa Clara Swim Club Pacific Swimming Western Zone USA
Free 50 M 34.40 9 07/17/2026 A AA: 34.39 (+0.01s | 0.0%) 8 36 135 350
Free 100 M 1:17.25 Analysis 9 06/27/2026 A AA: 1:16.69 (+0.56s | 0.7%) 10 44 152 386
50 Free
37.82
37.82
100 Free
39.43
1:17.25
100 Free
1:17.25
Free 200 M 2:40.33 Analysis 9 07/30/2026 AA AAA: 2:38.89 (+1.44s | 0.9%) 7 23 71 179
Back 50 M 38.87 9 07/30/2026 AAA AAAA: 36.99 (+1.88s | 4.8%) 5 18 62 152
Back 100 M 1:29.43 Analysis 9 05/22/2026 A AA: 1:28.19 (+1.24s | 1.4%) 9 37 132 374
Breast 50 M 45.97 9 06/27/2026 A AA: 45.79 (+0.18s | 0.4%) 6 27 91 223
Breast 100 M 2:03.18 Analysis 9 05/30/2025 B BB: 1:59.19 (+3.99s | 3.2%) 27 157 635 1,000+
50 Breast
57.60
57.60
100 Breast
1:05.58
2:03.18
100 Breast
2:03.18
Fly 50 M 34.85 9 07/17/2026 AAA AAAA: 34.69 (+0.16s | 0.5%) 3 14 34 65
Fly 100 M 1:16.82 Analysis 9 07/30/2026 AAAA 2 9 19 31
50 Fly
36.61
36.61
100 Fly
40.21
1:16.82
100 Fly
1:16.82
IM 200 M 2:58.21 Analysis 9 07/17/2026 AAA AAAA: 2:52.19 (+6.02s | 3.4%) 6 18 53 114

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