USCF player statistics
Grudzien, Blake
- Gender
- Male
- FIDE
- FIDE 566029031
- US Chess reported rank
- #17,205 national · #1,004 in state
- Floor
- Regular 124 · Quick 111
- Rated games
- Regular 5
US Chess record as of Sep 18, 2026
How this rating moves
Between consecutive published observations, provisional included.
- Biggest gain
- +366
- Oct 2026 to Nov 2026
- Biggest drop
- -1
- May 2026 to Jun 2026
- Longest rise
- 2 updates
- +407 from Sep 2026 to Nov 2026
- Updates that moved
- 4 of 6
- Latest +366, Oct 2026 to Nov 2026
- Typical move
- ±68
- Mean absolute change; spread ±146.9
Regular rating in context
United States
#9,275of 83,032 rated members · higher than 88.7%
73,731 lower · 27 same rating · 9,274 higher · ties share a rank
California
#1,246of 9,288 rated members · higher than 86.5%
8,040 lower · 3 same rating · 1,245 higher · ties share a rank
Where this rating sits · United States
83,032 rated members in 50-point bands · median 850–899 · 5,995 within 100 points of 1,742 (this player included)
1,700–1,749: 1,646 members (1.9%) · highlighted band is the player’s · dashed line is the target
89% below 1,750 (73,935 of 83,032; 88.7% below 1,742)
Percentile over time · United States
88.7% higher than · Nov 2026 · rank #9,275 of 83,032
Since May 2026
+16.6 pts
How these comparisons are calculated
Chess67 calculations from the Nov 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 |
|---|---|---|
| Nov 2026 | 1,742 P+366 · 19 games | 1,590 P+235 · 15 games |
| Oct 2026 | 1,376 P+41 · 8 games | 1,355 P8 games |
| 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 | — |