USCF player statistics

Blaha, Robert Z

USCF 13473723ColoradoUpdated: Nov 2026

Official US Chess record

Gender: Male
FIDE: FIDE 39933482
US Chess reported rank: #7,400 national · #130 in state
Floor: Regular 1,600 · Quick 100
Rated games: Quick 19

US Chess record as of Sep 15, 2026

Find USCF-rated tournamentsBrowse upcoming events and entry requirements.

Regular rating

1,6900 since Oct 2026

Published rating · Nov 2026 · 12 published updates since Dec 2025

Nov 20261,690 Regular

Compare format

Dec 2025Nov 2026

12 updates in this window · -27 first to last · open points are provisional · guides mark US Chess classes · unpublished months are skipped, not inactivity

Compare with another playerOverlays their published ratings on the chart; the link keeps the comparison.

Other formats against Regular

-237 Quick vs Regular (provisional)
Typical for 1,600–1,699 regular players: -121 (middle half -201 to -59, 2,187 established members). This gap is below the typical range.

How this rating moves

Between consecutive published observations, provisional included.

Biggest gain: —; No gain between published updates yet
Biggest drop: -27; Sep 2026 to Oct 2026
Longest rise: —; No consecutive gains yet
Current run: 1 update; Unchanged since Oct 2026
Typical move: ±2; Mean absolute change; spread ±8.1

Regular rating in context

Nov 2026 update

United States

#10,986of 83,032 rated members · higher than 86.7%

72,016 lower · 31 same rating · 10,985 higher · ties share a rank

Colorado

#183of 1,039 rated members · higher than 82.2%

855 lower · 2 same rating · 182 higher · ties share a rank

Where this rating sits · United States

83,032 rated members in 50-point bands · median 850–899 · 6,330 within 100 points of 1,690 (this player included)

Player · 1,690

01,4252,850

1,650–1,699: 1,498 members (1.8%) · highlighted band is the player’s · dashed line is the target

Target 1,700

87% below 1,700 (72,289 of 83,032; 86.7% below 1,690)

Percentile over time · United States

86.7% higher than · Nov 2026 · rank #10,986 of 83,032

Since Dec 2025
-1.1 pts

Dec 2025Nov 2026

Each month against that month’s active pool, so pool growth and rating drift both count.

How these comparisons are calculated

Chess67 calculations from the Nov 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 Colorado 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 Blaha, Robert Z
Month	Regular	Quick
Nov 2026	1,690no change	1,453 Pno change · 19 games
Oct 2026	1,690-27	1,453 Pno change · 19 games
Sep 2026	1,717no change	1,453 Pno change · 19 games
Aug 2026	1,717no change	1,453 Pno change · 19 games
Jul 2026	1,717no change	1,453 Pno change · 19 games
Jun 2026	1,717no change	1,453 Pno change · 19 games
May 2026	1,717no change	1,453 Pno change · 19 games
Apr 2026	1,717no change	1,453 Pno change · 19 games
Mar 2026	1,717no change	1,453 Pno change · 19 games
Feb 2026	1,717no change	1,453 Pno change · 19 games
Jan 2026	1,717no change	1,453 Pno change · 19 games
Dec 2025	1,717	1,453 P19 games

Chess67 DiscordChat with the Chess67 community.Open Find a chess tournamentUpcoming events near you.Browse Find a chess clubClubs and meetups near you.Browse