Tatsumasa Sekine

Age: 8 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 Pacific Swimming Santa Clara Swim Club
Free 25 Y 16.25 8 10/11/2025 57 8
Free 50 Y 34.07 8 09/27/2025 BB A: 31.09 (+2.98s | 8.7%) 148 16
Free 100 Y 1:15.15 8 09/27/2025 BB A: 1:09.79 (+5.36s | 7.1%) 125 13
Free 500 Y 7:24.89 8 11/01/2025 BB A: 6:43.39 (+41.50s | 9.3%) 59 16
Back 25 Y 18.54 8 10/25/2025 16 7
Back 50 Y 39.73 8 10/25/2025 BB A: 37.59 (+2.14s | 5.4%) 91 14
Back 100 Y 1:37.33 8 03/01/2025 B BB: 1:30.09 (+7.24s | 7.4%) 179 26
50 Back
48.56
48.56
100 Back
48.77
1:37.33
100 Back
1:37.33
Breast 25 Y 23.54 8 10/11/2025 74 12
Breast 50 Y 47.11 8 09/27/2025 BB A: 42.09 (+5.02s | 10.7%) 165 23
Breast 100 Y 1:44.45 8 09/27/2025 B BB: 1:42.29 (+2.16s | 2.1%) 147 21
Fly 25 Y 18.91 7 01/24/2025 69 12
Fly 50 Y 34.10 8 10/25/2025 AA AAA: 32.59 (+1.51s | 4.4%) 30 6
Fly 100 Y 1:22.70 8 06/14/2025 A AA: 1:19.49 (+3.21s | 3.9%) 32 4
IM 100 Y 1:25.49 8 10/25/2025 BB A: 1:19.69 (+5.80s | 6.8%) 111 13

Long course distance

Event Time Age Date Standard Next Standard Pacific Swimming Santa Clara Swim Club
Free 50 M 39.97 8 05/30/2025 B BB: 39.79 (+0.18s | 0.5%) 115 13
Free 100 M 1:31.52 8 06/27/2025 B BB: 1:30.59 (+0.93s | 1.0%) 124 17
Free 200 M 3:18.75 8 05/23/2025 B BB: 3:14.99 (+3.76s | 1.9%) 102 13
Back 50 M 44.31 8 05/23/2025 BB A: 43.09 (+1.22s | 2.8%) 56 10
Back 100 M 1:46.45 8 05/23/2025 B BB: 1:44.49 (+1.96s | 1.8%) 94 15
Breast 50 M 53.42 8 06/27/2025 BB A: 47.89 (+5.53s | 10.4%) 92 12
Breast 100 M 2:03.18 8 05/30/2025 B BB: 1:59.19 (+3.99s | 3.2%) 138 22
50 Breast
57.60
57.60
100 Breast
1:05.58
2:03.18
100 Breast
2:03.18
Fly 50 M 39.50 8 05/30/2025 A AA: 38.59 (+0.91s | 2.3%) 30 6
Fly 100 M 1:29.64 8 07/11/2025 AA AAA: 1:25.09 (+4.55s | 5.1%) 22 6
IM 200 M 3:26.23 8 05/30/2025 BB A: 3:17.89 (+8.34s | 4.0%) 49 9
50 Fly
41.85
41.85
100 Back
55.87
1:37.72
100 IM
1:37.72
150 Breast
1:01.14
2:38.86
200 Free
47.37
3:26.23
100 IM
1:48.51

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.