USCF player statistics
Nguyen, Mason Thuan
Official US Chess recordRegular rating
Published rating · Sep 2026 · 10 published updates since Dec 2025
Other formats against Regular
-2 Quick vs Regular
No national baseline for this rating band yet.
How this rating moves
Between consecutive published observations, provisional included.
- Biggest gain
- +1
- Aug 2026 to Sep 2026
- Biggest drop
- -1
- Jul 2026 to Aug 2026
- Longest rise
- 1 update
- +1 from Aug 2026 to Sep 2026
- Updates that moved
- 2 of 9
- Latest +1, Aug 2026 to Sep 2026
- Typical move
- ±0
- Mean absolute change; spread ±0.5
Regular rating in context
United States
19.2%of the comparison population has a lower rating.
16,101 lower · 57 same rating · 67,477 higher
California
16.7%of the comparison population has a lower rating.
1,517 lower · 6 same rating · 7,528 higher
Where this rating sits · United States
83,635 rated members in 50-point bands · median 800–849 · 10,634 within 100 points of 341
300–349: 2,672 members (3.1%) · highlighted band is the player’s · dashed line is the target
19.8% below 350 (16,619 of 83,635; 19.2% below 341)
How these comparisons are calculated
Chess67 calculations from the Sep 2026 monthly rating update, using the same population as the USCF statistics pages: US members classified as active in the published monthly records, excluding lifetime-coded records, provisional ratings included. Ties share a rank; “lower” is strictly lower; national and state groups overlap. The target explorer keeps the population fixed: it is a rating comparison, not a prediction of future rank. This player is outside that comparison population; no membership rank is assigned.
Published ratings by month
P marks a provisional rating; the small figure is the change since the previous published observation.
| Month | Regular | Quick |
|---|---|---|
| Sep 2026 | 341+1 | 339no change |
| Aug 2026 | 340-1 | 339-1 |
| Jul 2026 | 341no change | 340no change |
| Jun 2026 | 341no change | 340no change |
| May 2026 | 341no change | 340no change |
| Apr 2026 | 341no change | 340no change |
| Mar 2026 | 341no change | 340no change |
| Feb 2026 | 341no change | 340no change |
| Jan 2026 | 341no change | 340no change |
| Dec 2025 | 341 | 340 |