USCF player statistics
Stuart, Mark Timothy Sedley
- Biggest rank climb · #18 in Oregon (Quick)
- Biggest rank climb · #18 in Oregon (Regular)
- Fastest rising · #14 in Oregon (Quick)
- Fastest rising · #15 in Oregon (Regular)
- Gender
- Male
- US Chess reported rank
- #68,466 national · #1,233 in state
- Floor
- Regular 125 · Quick 125
US Chess record as of Sep 17, 2026
How this rating moves
Between consecutive published observations, provisional included.
- Biggest gain
- +167
- Oct 2026 to Nov 2026
- Biggest drop
- —
- No drop between published updates yet
- Longest rise
- 2 updates
- +11 from Apr 2026 to Jun 2026
- Updates that moved
- 4 of 11
- Latest +167, Oct 2026 to Nov 2026
- Typical move
- ±17
- Mean absolute change; spread ±50
Regular rating in context
United States
#69,792of 83,032 rated members · higher than 15.8%
13,194 lower · 47 same rating · 69,791 higher · ties share a rank
Oregon
#1,212of 1,501 rated members · higher than 19.1%
287 lower · 3 same rating · 1,211 higher · ties share a rank
Where this rating sits · United States
83,032 rated members in 50-point bands · median 850–899 · 10,033 within 100 points of 292 (this player included)
250–299: 2,467 members (2.9%) · highlighted band is the player’s · dashed line is the target
16.3% below 300 (13,569 of 83,032; 15.8% below 292)
Percentile over time · United States
15.8% higher than · Nov 2026 · rank #69,792 of 83,032
Since Dec 2025
+10.8 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 | 292+167 | 292+167 |
| Oct 2026 | 125no change | 125no change |
| Sep 2026 | 125no change | 125no change |
| Aug 2026 | 125no change | 125no change |
| Jul 2026 | 125no change | 125no change |
| Jun 2026 | 125+2 | 125+2 |
| May 2026 | 123+9 | 123+9 |
| Apr 2026 | 114no change | 114no change |
| Mar 2026 | 114no change | 114no change |
| Feb 2026 | 114+5 | 114+5 |
| Jan 2026 | 109no change | 109no change |
| Dec 2025 | 109 | 109 |