USCF player statistics
Grudzien, Blake
Official US Chess recordRegular rating
Provisional rating · Sep 2026 · 5 published updates since May 2026
How this rating moves
Between consecutive published observations, provisional included.
- Biggest gain
- +2
- Jul 2026 to Aug 2026
- Biggest drop
- -1
- May 2026 to Jun 2026
- Longest rise
- 1 update
- +2 from Jul 2026 to Aug 2026
- Current run
- 1 update
- Unchanged since Aug 2026
- Typical move
- ±1
- Mean absolute change; spread ±1.3
Regular rating in context
United States
#22,807of 83,635 rated members · higher than 72.6%
60,794 lower · 35 same rating · 22,806 higher · ties share a rank
California
#2,721of 9,051 rated members · higher than 69.8%
6,324 lower · 7 same rating · 2,720 higher · ties share a rank
Where this rating sits · United States
83,635 rated members in 50-point bands · median 800–849 · 6,941 within 100 points of 1,335 (this player included)
1,300–1,349: 1,775 members (2.1%) · highlighted band is the player’s · dashed line is the target
73.2% below 1,350 (61,297 of 83,635; 72.6% below 1,335)
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 |
|---|---|
| Sep 2026 | 1,335 Pno change · 5 games |
| Aug 2026 | 1,335 P+2 · 5 games |
| Jul 2026 | 1,333 Pno change · 5 games |
| Jun 2026 | 1,333 P-1 · 5 games |
| May 2026 | 1,334 P5 games |