USCF player statistics

Pennucci, William C

USCF 12250520CaliforniaUpdated: Oct 2026

Official US Chess record

Gender: Male
TD: Club
Floor: Regular 2,000 · Quick 1,900 · Blitz 2,000

US Chess record as of Sep 14, 2026

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Regular rating

2,1490 since Sep 2026

Published rating · Oct 2026 · 11 published updates since Dec 2025

Oct 20262,149 Regular

Compare format

Dec 2025Oct 2026

11 updates in this window · 0 first to last · open points are provisional · guides mark US Chess classes · unpublished months are skipped, not inactivity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

-46 Quick vs Regular
Typical for 2,100–2,199 regular players: -165 (middle half -259 to -106, 573 established members). This gap is above the typical range.
+65 Blitz vs Regular
Typical for 2,100–2,199 regular players: -205 (middle half -299 to -116, 435 established members). This gap is above the typical range.

How this rating moves

Between consecutive published observations, provisional included.

Biggest gain: —; No gain between published updates yet
Biggest drop: —; No drop between published updates yet
Longest rise: —; No consecutive gains yet
Current run: 10 updates; Unchanged since Dec 2025
Typical move: ±0; Mean absolute change; spread ±0

Regular rating in context

Oct 2026 update

United States

#1,445of 82,596 rated members · higher than 98.2%

81,145 lower · 7 same rating · 1,444 higher · ties share a rank

California

#241of 9,083 rated members · higher than 97.3%

8,839 lower · 4 same rating · 240 higher · ties share a rank

Where this rating sits · United States

82,596 rated members in 50-point bands · median 800–849 · 1,779 within 100 points of 2,149 (this player included)

Player · 2,149

01,4502,900

2,100–2,149: 441 members (0.5%) · highlighted band is the player’s · dashed line is the target

Target 2,150

98.2% below 2,150 (81,152 of 82,596; 98.2% below 2,149)

Percentile over time · United States

98.2% higher than · Oct 2026 · rank #1,445 of 82,596

Since Dec 2025
0 pts

Dec 2025Oct 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 Oct 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 California 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 Pennucci, William C
Month	Regular	Quick	Blitz
Oct 2026	2,149no change	2,103no change	2,214no change
Sep 2026	2,149no change	2,103no change	2,214no change
Aug 2026	2,149no change	2,103no change	2,214no change
Jul 2026	2,149no change	2,103no change	2,214no change
Jun 2026	2,149no change	2,103no change	2,214no change
May 2026	2,149no change	2,103no change	2,214no change
Apr 2026	2,149no change	2,103no change	2,214no change
Mar 2026	2,149no change	2,103no change	2,214no change
Feb 2026	2,149no change	2,103no change	2,214no change
Jan 2026	2,149no change	2,103no change	2,214no change
Dec 2025	2,149	2,103	2,214

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