USCF player statistics

Zimmer, Roger A

USCF 32568419IllinoisLatest available supplement: Sep 2026
Official US Chess record
Rating format

Regular rating

527

Provisional rating

400500600Dec 2025: 486 (provisional)Jan 2026: 486 (provisional)Feb 2026: 486 (provisional)Mar 2026: 430 (provisional)Apr 2026: 430 (provisional)May 2026: 555 (provisional)Jun 2026: 555 (provisional)Jul 2026: 555 (provisional)Aug 2026: 527 (provisional)Sep 2026: 527 (provisional)Dec 2025Sep 2026
Published supplement ratings. Lines connect available observations; they do not show individual tournament results.

Regular rating in context

United States

#57,272

Among 83,635 rated members; tied ratings share a rank.

Higher than 31.4% of ratings in this population.

Illinois

#2,824

Among 4,678 rated members; tied ratings share a rank.

Higher than 39.5% of ratings in this population.

Calculated from the Sep 2026 supplement, using the same population as Chess67’s USCF statistics: US members classified as active by the supplement rules, excluding lifetime-coded records. Includes provisional ratings. These are Chess67 calculations, not official US Chess rankings.

Published ratings by supplement

All available formats. P indicates a provisional rating.

Monthly USCF ratings for Zimmer, Roger A
SupplementRegularQuick
Sep 2026527 P520 P
Aug 2026527 P520 P
Jul 2026555 P551 P
Jun 2026555 P551 P
May 2026555 P551 P
Apr 2026430 P429 P
Mar 2026430 P430 P
Feb 2026486 P479 P
Jan 2026486 P479 P
Dec 2025486 P479 P

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About these statistics

These pages use the USCF supplements available to Chess67. Ratings can change between monthly publications. Missing months do not mean a player was inactive. For current ratings and tournament history, consult the official US Chess record.

National USCF statisticsIllinois USCF statistics