USCF player statistics

Sweeney, William C

USCF 10041619ConnecticutUpdated: Oct 2026
Official US Chess record

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Gender
Male
TD
Club
US Chess reported rank
#9,860 national · #142 in state
Floor
Regular 1,400 · Quick 1,400 · Online Regular 100
Rated games
Online Regular 15

US Chess record as of Sep 14, 2026

Rating format

Regular rating

1,6120 since Sep 2026

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

Oct 20261,612 Regular
Dec 2025: 1610Jan 2026: 1610Feb 2026: 1610Mar 2026: 1610Apr 2026: 1610May 2026: 1610Jun 2026: 1610Jul 2026: 1610Aug 2026: 1610Sep 2026: 1612Oct 2026: 1612
Dec 2025Oct 2026
11 updates in this window · +2 first to last · open points are provisional · guides mark US Chess classes · unpublished months are skipped, not inactivity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

  • 0 Quick vs Regular

    Typical for 1,600–1,699 regular players: -119 (middle half -202 to -59, 2,135 established members). This gap is above the typical range.

  • -36 Online Regular vs Regular (provisional)

    Typical for 1,600–1,699 regular players: -360 (middle half -572 to -180, 262 established members). This gap is above the typical range.

How this rating moves

Between consecutive published observations, provisional included.

Biggest gain
+2
Aug 2026 to Sep 2026
Biggest drop
—
No drop between published updates yet
Longest rise
1 update
+2 from Aug 2026 to Sep 2026
Current run
1 update
Unchanged since Sep 2026
Typical move
±0
Mean absolute change; spread ±0.6

Regular rating in context

Oct 2026 update

United States

#13,366of 82,596 rated members · higher than 83.7%

69,198 lower · 33 same rating · 13,365 higher · ties share a rank

Connecticut

#198of 848 rated members · higher than 76.6%

650 lower · 1 same rating · 197 higher · ties share a rank

Where this rating sits · United States

82,596 rated members in 50-point bands · median 800–849 · 6,710 within 100 points of 1,612 (this player included)

Player · 1,612
01,4502,900

1,600–1,649: 1,851 members (2.2%) · highlighted band is the player’s · dashed line is the target

85.2% below 1,650 (70,433 of 82,596; 83.7% below 1,612)

Percentile over time · United States

83.7% higher than · Oct 2026 · rank #13,366 of 82,596

Since Dec 2025
0 pts

Dec 2025: higher than 83.7% (rank 13,144 of 81,102)Jan 2026: higher than 83.5% (rank 13,036 of 79,487)Feb 2026: higher than 83.7% (rank 13,567 of 83,940)Mar 2026: higher than 83.5% (rank 13,190 of 80,605)Apr 2026: higher than 83.6% (rank 13,169 of 80,831)May 2026: higher than 83.6% (rank 13,233 of 81,236)Jun 2026: higher than 84% (rank 13,269 of 83,290)Jul 2026: higher than 84% (rank 13,169 of 82,736)Aug 2026: higher than 84% (rank 13,255 of 83,080)Sep 2026: higher than 84% (rank 13,307 of 83,635)Oct 2026: higher than 83.7% (rank 13,366 of 82,596)
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 Connecticut 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 Sweeney, William C
MonthRegularQuickOnline Regular
Oct 20261,612no change1,612no change1,576 Pno change · 15 games
Sep 20261,612+21,612+21,576 Pno change · 15 games
Aug 20261,610no change1,610+171,576 Pno change · 15 games
Jul 20261,610no change1,593no change1,576 Pno change · 15 games
Jun 20261,610no change1,593no change1,576 Pno change · 15 games
May 20261,610no change1,593no change1,576 Pno change · 15 games
Apr 20261,610no change1,593no change1,576 Pno change · 15 games
Mar 20261,610no change1,593no change1,576 Pno change · 15 games
Feb 20261,610no change1,593no change1,576 Pno change · 15 games
Jan 20261,610no change1,593no change1,576 Pno change · 15 games
Dec 20251,6101,5931,576 P15 games

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.