USCF player statistics

Greenalch, Robert

USCF 12805958ArizonaLatest monthly rating update: Sep 2026
Official US Chess record
US Chess reported rank
#5,471 national · #128 in state
Floor
Regular 1,700 · Quick 118
Rated games
Quick 21

US Chess record as of Sep 15, 2026

Rating format

Regular rating

1,8120 since Aug 2026

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

Sep 20261,812 Regular
Dec 2025: 1850Jan 2026: 1850Feb 2026: 1809Mar 2026: 1809Apr 2026: 1812May 2026: 1812Jun 2026: 1812Jul 2026: 1812Aug 2026: 1812Sep 2026: 1812
Dec 2025Sep 2026
10 updates in this window · -38 first to last · open points are provisional · guides mark US Chess classes · unpublished months are skipped, not inactivity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

  • +21 Quick vs Regular (provisional)

    No national baseline for this rating band yet.

How this rating moves

Between consecutive published observations, provisional included.

Biggest gain
+3
Mar 2026 to Apr 2026
Biggest drop
-41
Jan 2026 to Feb 2026
Longest rise
1 update
+3 from Mar 2026 to Apr 2026
Current run
5 updates
Unchanged since Apr 2026
Typical move
±5
Mean absolute change; spread ±13.8

Regular rating in context

Sep 2026 update

United States

#7,182of 83,635 rated members · higher than 91.3%

76,418 lower · 36 same rating · 7,181 higher · ties share a rank

Arizona

#178of 1,686 rated members · higher than 89.4%

1,508 lower · 1 same rating · 177 higher · ties share a rank

Where this rating sits · United States

83,635 rated members in 50-point bands · median 800–849 · 5,348 within 100 points of 1,812 (this player included)

Player · 1,812
01,4502,900

1,8001,849: 1,567 members (1.8%) · highlighted band is the player’s · dashed line is the target

92.5% below 1,850 (77,390 of 83,635; 91.3% below 1,812)

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 Arizona 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 Greenalch, Robert
MonthRegularQuick
Sep 20261,812no change1,833 Pno change · 21 games
Aug 20261,812no change1,833 Pno change · 21 games
Jul 20261,812no change1,833 Pno change · 21 games
Jun 20261,812no change1,833 Pno change · 21 games
May 20261,812no change1,833 Pno change · 21 games
Apr 20261,812+31,833 Pno change · 21 games
Mar 20261,809no change1,833 Pno change · 21 games
Feb 20261,809-411,833 P-75 · 21 games
Jan 20261,850no change1,908 Pno change · 17 games
Dec 20251,8501,908 P17 games

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