USCF player statistics
Sheft, Mark D
Official US Chess record- FIDE
- FIDE 39906450
- US Chess reported rank
- #36,124 national · #1,654 in state
- Floor
- Regular 144
US Chess record as of Sep 14, 2026
Regular rating
Published rating · Sep 2026 · 10 published updates since Dec 2025
How this rating moves
Between consecutive published observations, provisional included.
- Biggest gain
- —
- No gain between published updates yet
- Biggest drop
- -1
- Mar 2026 to Apr 2026
- Longest rise
- —
- No consecutive gains yet
- Current run
- 5 updates
- Unchanged since Apr 2026
- Typical move
- ±0
- Mean absolute change; spread ±0.3
Regular rating in context
United States
#44,179of 83,635 rated members · higher than 47.1%
39,405 lower · 52 same rating · 44,178 higher · ties share a rank
Illinois
#2,069of 4,678 rated members · higher than 55.7%
2,609 lower · 1 same rating · 2,068 higher · ties share a rank
Where this rating sits · United States
83,635 rated members in 50-point bands · median 800–849 · 9,440 within 100 points of 786 (this player included)
750–799: 2,331 members (2.7%) · highlighted band is the player’s · dashed line is the target
47.8% below 800 (40,060 of 83,635; 47.1% below 786)
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 | 786no change |
| Aug 2026 | 786no change |
| Jul 2026 | 786no change |
| Jun 2026 | 786no change |
| May 2026 | 786no change |
| Apr 2026 | 786-1 |
| Mar 2026 | 787no change |
| Feb 2026 | 787no change |
| Jan 2026 | 787no change |
| Dec 2025 | 787 |