USCF player statistics
Koble, Donald E
Official US Chess recordRegular 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
- —
- No drop between published updates yet
- Longest rise
- —
- No consecutive gains yet
- Current run
- 9 updates
- Unchanged since Dec 2025
- Typical move
- ±0
- Mean absolute change; spread ±0
Regular rating in context
United States
#16,783of 83,635 rated members · higher than 79.8%
66,820 lower · 33 same rating · 16,782 higher · ties share a rank
Iowa
#102of 360 rated members · higher than 71.6%
258 lower · 1 same rating · 101 higher · ties share a rank
Where this rating sits · United States
83,635 rated members in 50-point bands · median 800–849 · 6,817 within 100 points of 1,509 (this player included)
1,500–1,549: 1,925 members (2.3%) · highlighted band is the player’s · dashed line is the target
81.5% below 1,550 (68,205 of 83,635; 79.8% below 1,509)
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 | 1,509no change |
| Aug 2026 | 1,509no change |
| Jul 2026 | 1,509no change |
| Jun 2026 | 1,509no change |
| May 2026 | 1,509no change |
| Apr 2026 | 1,509no change |
| Mar 2026 | 1,509no change |
| Feb 2026 | 1,509no change |
| Jan 2026 | 1,509no change |
| Dec 2025 | 1,509 |