USCF player statistics
Yau, Andrew Jason
Official US Chess recordRegular rating
Published rating · Sep 2026 · 10 published updates since Dec 2025
Other formats against Regular
-12 Quick vs Regular
No national baseline for this rating band yet.
How this rating moves
Between consecutive published observations, provisional included.
- Biggest gain
- +125
- Dec 2025 to Jan 2026
- Biggest drop
- -90
- Jun 2026 to Jul 2026
- Longest rise
- 1 update
- +125 from Dec 2025 to Jan 2026
- Current run
- 1 update
- Unchanged since Aug 2026
- Typical move
- ±39
- Mean absolute change; spread ±62.3
Regular rating in context
United States
#39,454of 83,635 rated members · higher than 52.7%
44,144 lower · 38 same rating · 39,453 higher · ties share a rank
New Jersey
#1,572of 3,003 rated members · higher than 47.6%
1,430 lower · 2 same rating · 1,571 higher · ties share a rank
Where this rating sits · United States
83,635 rated members in 50-point bands · median 800–849 · 8,753 within 100 points of 890 (this player included)
850–899: 2,189 members (2.6%) · highlighted band is the player’s · dashed line is the target
53.2% below 900 (44,559 of 83,635; 52.7% below 890)
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, with this player at their recorded rating: it is a rating comparison, not a prediction of future rank.
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 | 890no change | 878no change |
| Aug 2026 | 890-1 | 878no change |
| Jul 2026 | 891-90 | 878-95 |
| Jun 2026 | 981+83 | 973+84 |
| May 2026 | 898-12 | 889-11 |
| Apr 2026 | 910-26 | 900-27 |
| Mar 2026 | 936-10 | 927-13 |
| Feb 2026 | 946no change | 940no change |
| Jan 2026 | 946+125 | 940+125 |
| Dec 2025 | 821 | 815 |