USCF player statistics
Griffin, Mark
- Gender
- Male
- US Chess reported rank
- #34,337 national · #157 in state
- Floor
- Regular 103
- Rated games
- Regular 4
US Chess record as of Sep 18, 2026
How this rating moves
Between consecutive published observations, provisional included.
- Biggest gain
- —
- No gain between published updates yet
- Biggest drop
- -10
- Oct 2026 to Nov 2026
- Longest rise
- —
- No consecutive gains yet
- Updates that moved
- 1 of 4
- Latest -10, Oct 2026 to Nov 2026
- Typical move
- ±3
- Mean absolute change; spread ±5
Regular rating in context
United States
#42,867of 83,032 rated members · higher than 48.3%
40,107 lower · 59 same rating · 42,866 higher · ties share a rank
New Hampshire
#205of 347 rated members · higher than 40.9%
142 lower · 1 same rating · 204 higher · ties share a rank
Where this rating sits · United States
83,032 rated members in 50-point bands · median 850–899 · 9,127 within 100 points of 819 (this player included)
800–849: 2,288 members (2.7%) · highlighted band is the player’s · dashed line is the target
49.9% below 850 (41,511 of 83,032; 48.3% below 819)
Percentile over time · United States
48.3% higher than · Nov 2026 · rank #42,867 of 83,032
Since Jul 2026
-1.4 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 | 819 P-10 · 9 games | 785 P9 games |
| Oct 2026 | 829 Pno change · 4 games | — |
| Sep 2026 | 829 Pno change · 4 games | — |
| Aug 2026 | 829 Pno change · 4 games | — |
| Jul 2026 | 829 P4 games | — |
| Jun 2026 | — | — |