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Greyson Thach

Age: 8 years old
Age Category: 10 & under
Team: Oakland Undercurrent Swim Team | Pacific Swimming

Personal Best

Short course distance

Event Time Age Date Standard Next Standard Oakland Undercurrent Swim Team Pacific Swimming Western Zone USA
Free 25 Y 17.84 8 01/31/2026 2 129 363 1,000+
Free 50 Y 38.47 8 02/28/2026 B: 38.19 (+0.28s | 0.7%) 3 336 1,000+ 1,000+
Free 100 Y 1:28.88 Analysis 8 01/31/2026 B: 1:27.99 (+0.89s | 1.0%) 2 333 1,000+ 1,000+
Free 200 Y 3:12.63 Analysis 8 02/28/2026 B: 3:09.49 (+3.14s | 1.6%) 2 179 796 1,000+
Back 25 Y 22.63 8 03/14/2026 1 165 512 1,000+
Back 50 Y 46.95 8 03/14/2026 B BB: 42.89 (+4.06s | 8.6%) 2 336 1,000+ 1,000+
Back 100 Y 2:09.68 Analysis 8 04/12/2025 B: 1:40.69 (+28.99s | 22.4%) 2 401 1,000+ 1,000+
Breast 25 Y 21.15 8 03/14/2026 1 20 39 137
Breast 50 Y 48.99 8 03/14/2026 B BB: 47.69 (+1.30s | 2.7%) 2 212 769 1,000+
Breast 100 Y 1:42.25 Analysis 8 03/14/2026 BB A: 1:30.59 (+11.66s | 11.4%) 2 137 566 1,000+
50 Breast
50.44
50.44
100 Breast
51.81
1:42.25
100 Breast
1:42.25
Fly 25 Y 21.24 8 02/20/2026 1 112 298 1,000+
Fly 50 Y 46.64 8 03/14/2026 B: 46.49 (+0.15s | 0.3%) 3 245 946 1,000+
Fly 100 Y 1:53.81 Analysis 8 03/14/2026 B: 1:53.49 (+0.32s | 0.3%) 1 132 595 1,000+
50 Fly
53.63
53.63
100 Fly
1:00.18
1:53.81
100 Fly
1:53.81
IM 100 Y 1:36.41 Analysis 8 02/28/2026 B BB: 1:29.69 (+6.72s | 7.0%) 2 240 918 1,000+

Long course distance

Event Time Age Date Standard Next Standard Oakland Undercurrent Swim Team Pacific Swimming Western Zone USA

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