USCF player statistics

Woodruff, Charles

USCF 15847358MassachusettsUpdated: Oct 2026

Official US Chess record

Gender: Male
FIDE: FIDE 0
US Chess reported rank: #12,499 national · #446 in state
Floor: Regular 1,400 · Quick 121 · Blitz 1,200

US Chess record as of Sep 15, 2026

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Regular rating

1,636+127 since Sep 2026

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

Oct 20261,636 Regular

Compare format

Dec 2025Oct 2026

11 updates in this window · +170 first to last · open points are provisional · guides mark US Chess classes · unpublished months are skipped, not inactivity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

-355 Quick vs Regular
Typical for 1,600–1,699 regular players: -119 (middle half -202 to -59, 2,135 established members). This gap is below the typical range.
-221 Blitz vs Regular
Typical for 1,600–1,699 regular players: -208 (middle half -334 to -84, 934 established members). This gap is within the typical range.

How this rating moves

Between consecutive published observations, provisional included.

Biggest gain: +127; Sep 2026 to Oct 2026
Biggest drop: -60; Aug 2026 to Sep 2026
Longest rise: 1 update; +127 from Sep 2026 to Oct 2026
Updates that moved: 4 of 10; Latest +127, Sep 2026 to Oct 2026
Typical move: ±29; Mean absolute change; spread ±55.4

Regular rating in context

Oct 2026 update

United States

#12,576of 82,596 rated members · higher than 84.7%

69,977 lower · 44 same rating · 12,575 higher · ties share a rank

Massachusetts

#467of 1,673 rated members · higher than 72%

1,206 lower · 1 same rating · 466 higher · ties share a rank

Where this rating sits · United States

82,596 rated members in 50-point bands · median 800–849 · 6,577 within 100 points of 1,636 (this player included)

Player · 1,636

01,4502,900

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

Target 1,650

85.2% below 1,650 (70,433 of 82,596; 84.7% below 1,636)

Percentile over time · United States

84.7% higher than · Oct 2026 · rank #12,576 of 82,596

Since Dec 2025
+7 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 Massachusetts 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 Woodruff, Charles
Month	Regular	Quick	Blitz
Oct 2026	1,636+127	1,281no change	1,415no change
Sep 2026	1,509-60	1,281no change	1,415no change
Aug 2026	1,569no change	1,281no change	1,415no change
Jul 2026	1,569+104	1,281no change	1,415no change
Jun 2026	1,465no change	1,281no change	1,415no change
May 2026	1,465no change	1,281no change	1,415no change
Apr 2026	1,465no change	1,281no change	1,415no change
Mar 2026	1,465no change	1,281no change	1,415no change
Feb 2026	1,465-1	1,281no change	1,415no change
Jan 2026	1,466no change	1,281no change	1,415no change
Dec 2025	1,466	1,281	1,415

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