USCF player statistics
Guffey, Maxim H.
- Biggest rank climb · #41 in United States (Quick)
- Biggest rank climb · #42 in United States (Regular)
- Biggest rank climb · #6 in Washington (Quick)
- Biggest rank climb · #5 in Washington (Regular)
- Gender
- Male
- US Chess reported rank
- #58,026 national · #1,493 in state
- Floor
- Regular 140 · Quick 140
- Rated games
- Regular 11 · Quick 11
US Chess record as of Sep 18, 2026
How this rating moves
Between consecutive published observations, provisional included.
- Biggest gain
- +293
- Sep 2026 to Oct 2026
- Biggest drop
- —
- No drop between published updates yet
- Longest rise
- 2 updates
- +535 from Aug 2026 to Oct 2026
- Updates that moved
- 2 of 2
- Latest +293, Sep 2026 to Oct 2026
- Typical move
- ±268
- Mean absolute change; spread ±36.1
Regular rating in context
United States
#51,160of 82,596 rated members · higher than 37.9%
31,375 lower · 62 same rating · 51,159 higher · ties share a rank
Washington
#1,443of 2,117 rated members · higher than 31.7%
672 lower · 3 same rating · 1,442 higher · ties share a rank
Where this rating sits · United States
82,596 rated members in 50-point bands · median 800–849 · 10,097 within 100 points of 637 (this player included)
600–649: 2,612 members (3.1%) · highlighted band is the player’s · dashed line is the target
38.8% below 650 (32,072 of 82,596; 37.9% below 637)
Percentile over time · United States
37.9% higher than · Oct 2026 · rank #51,160 of 82,596
Since Aug 2026
+36.3 pts
How these comparisons are calculated
Chess67 calculations from the Oct 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 |
|---|---|---|
| Oct 2026 | 637 P+293 · 17 games | 639 P+295 · 17 games |
| Sep 2026 | 344 P+242 · 11 games | 344 P+242 · 11 games |
| Aug 2026 | 102 P7 games | 102 P7 games |