USCF player statistics

Kolb, Grace

USCF 31571368IllinoisLatest monthly rating update: Sep 2026
Official US Chess record
Rating format

Regular rating

812+181 since Aug 2026

Published rating · Sep 2026 · 10 published updates since Dec 2025

Sep 2026812 Regular
Dec 2025: 624Jan 2026: 665Feb 2026: 769Mar 2026: 628Apr 2026: 630May 2026: 654Jun 2026: 631Jul 2026: 631Aug 2026: 631Sep 2026: 812
Dec 2025Sep 2026
10 updates in this window · +188 first to last · open points are provisional · guides mark US Chess classes · unpublished months are skipped, not inactivity
Overlays their published ratings on the chart; the link keeps the comparison.

Other formats against Regular

  • -9 Quick vs Regular

    No national baseline for this rating band yet.

How this rating moves

Between consecutive published observations, provisional included.

Biggest gain
+181
Aug 2026 to Sep 2026
Biggest drop
-141
Feb 2026 to Mar 2026
Longest rise
2 updates
+145 from Dec 2025 to Feb 2026
Updates that moved
7 of 9
Latest +181, Aug 2026 to Sep 2026
Typical move
±57
Mean absolute change; spread ±88.3

Regular rating in context

Sep 2026 update

United States

#42,960of 83,635 rated members · higher than 48.5%

40,636 lower · 40 same rating · 42,959 higher · ties share a rank

Illinois

#2,013of 4,678 rated members · higher than 56.9%

2,662 lower · 4 same rating · 2,012 higher · ties share a rank

Where this rating sits · United States

83,635 rated members in 50-point bands · median 800–849 · 9,184 within 100 points of 812 (this player included)

Player · 812
01,4502,900

800849: 2,310 members (2.7%) · highlighted band is the player’s · dashed line is the target

50.6% below 850 (42,370 of 83,635; 48.5% below 812)

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.

United States statistics Illinois statistics

Published ratings by month

P marks a provisional rating; the small figure is the change since the previous published observation.

Monthly USCF ratings for Kolb, Grace
MonthRegularQuick
Sep 2026812+181803+198
Aug 2026631no change605no change
Jul 2026631no change605no change
Jun 2026631-23605-17
May 2026654+24622no change
Apr 2026630+2622+3
Mar 2026628-141619-139
Feb 2026769+104758+117
Jan 2026665+41641+75
Dec 2025624566

Enter an 8-digit USCF ID, or at least 3 letters of a name. Similar names in IL appear first.

About these statistics. Built from the monthly USCF rating updates available to Chess67. Ratings change between publications, and a missing month is not inactivity. The official US Chess record has current ratings and tournament history.