USCF player statistics
Matthews, Karen
Official US Chess recordRegular rating
Provisional rating · Sep 2026 · 4 published updates since Jun 2026
How this rating moves
Between consecutive published observations, provisional included.
- Biggest gain
- —
- No gain between published updates yet
- Biggest drop
- -67
- Jun 2026 to Jul 2026
- Longest rise
- —
- No consecutive gains yet
- Updates that moved
- 2 of 3
- Latest -6, Aug 2026 to Sep 2026
- Typical move
- ±24
- Mean absolute change; spread ±37.1
Regular rating in context
United States
#38,318of 83,635 rated members · higher than 54.1%
45,274 lower · 44 same rating · 38,317 higher · ties share a rank
Massachusetts
#1,074of 1,677 rated members · higher than 35.8%
601 lower · 3 same rating · 1,073 higher · ties share a rank
Where this rating sits · United States
83,635 rated members in 50-point bands · median 800–849 · 8,558 within 100 points of 917 (this player included)
900–949: 2,108 members (2.5%) · highlighted band is the player’s · dashed line is the target
55.7% below 950 (46,667 of 83,635; 54.1% below 917)
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 | 917 P-6 · 10 games |
| Aug 2026 | 923 Pno change · 9 games |
| Jul 2026 | 923 P-67 · 9 games |
| Jun 2026 | 990 P6 games |
| May 2026 | — |