USCF player statistics
Feinberg, Zack
Official US Chess recordRegular rating
Published rating · Sep 2026 · 10 published updates since Dec 2025
Other formats against Regular
-17 Quick vs Regular
No national baseline for this rating band yet.
How this rating moves
Between consecutive published observations, provisional included.
- Biggest gain
- +193
- Dec 2025 to Jan 2026
- Biggest drop
- -33
- Feb 2026 to Mar 2026
- Longest rise
- 2 updates
- +284 from Dec 2025 to Feb 2026
- Current run
- 6 updates
- Unchanged since Mar 2026
- Typical move
- ±35
- Mean absolute change; spread ±70.4
Regular rating in context
United States
#35,519of 83,635 rated members · higher than 57.4%
48,086 lower · 31 same rating · 35,518 higher · ties share a rank
Virginia
#1,165of 2,595 rated members · higher than 55.1%
1,430 lower · 1 same rating · 1,164 higher · ties share a rank
Where this rating sits · United States
83,635 rated members in 50-point bands · median 800–849 · 8,107 within 100 points of 984 (this player included)
950–999: 2,074 members (2.4%) · highlighted band is the player’s · dashed line is the target
58.2% below 1,000 (48,741 of 83,635; 57.4% below 984)
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 | 984no change | 967no change |
| Aug 2026 | 984no change | 967no change |
| Jul 2026 | 984no change | 967no change |
| Jun 2026 | 984no change | 967no change |
| May 2026 | 984no change | 967no change |
| Apr 2026 | 984no change | 967no change |
| Mar 2026 | 984-33 | 967-39 |
| Feb 2026 | 1,017+91 | 1,006+75 |
| Jan 2026 | 926 P+193 · 23 games | 931 P+184 · 23 games |
| Dec 2025 | 733 P18 games | 747 P18 games |