USCF player statistics

Donaldson, William John

USCF 10270294CaliforniaUpdated: Oct 2026
Official US Chess record

Enter an 8-digit USCF ID, or at least 3 letters of a name. Similar names in CA appear first.

Gender
Male
FIDE title
M
FIDE
FIDE 2000709
TD
Senior
US Chess reported rank
#270 national · #20 in state
Floor
Regular 2,200 · Quick 2,200 · Blitz 2,100 · Online Regular 100
Rated games
Online Regular 22

US Chess record as of Sep 14, 2026

Find USCF-rated tournamentsBrowse upcoming events and entry requirements.
Rating format

Regular rating

2,3630 since Sep 2026

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

Oct 20262,363 Regular
Dec 2025: 2370Jan 2026: 2370Feb 2026: 2370Mar 2026: 2370Apr 2026: 2365May 2026: 2368Jun 2026: 2368Jul 2026: 2368Aug 2026: 2363Sep 2026: 2363Oct 2026: 2363
Dec 2025Oct 2026
11 updates in this window · -7 first to last · open points are provisional · guides mark US Chess classes · unpublished months are skipped, not inactivity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

  • -141 Quick vs Regular

    Typical for 2,300–2,399 regular players: -187 (middle half -304 to -104, 198 established members). This gap is within the typical range.

  • -16 Blitz vs Regular

    Typical for 2,300–2,399 regular players: -155 (middle half -256 to -63, 162 established members). This gap is above the typical range.

  • +20 Online Regular vs Regular (provisional)

    Typical for 2,300–2,399 regular players: -342 (middle half -560 to -172, 81 established members). This gap is above the typical range.

How this rating moves

Between consecutive published observations, provisional included.

Biggest gain
+3
Apr 2026 to May 2026
Biggest drop
-5
Mar 2026 to Apr 2026
Longest rise
1 update
+3 from Apr 2026 to May 2026
Current run
2 updates
Unchanged since Aug 2026
Typical move
±1
Mean absolute change; spread ±2.5

Regular rating in context

Oct 2026 update

United States

#283of 82,596 rated members · higher than 99.6%

82,313 lower · 1 same rating · 282 higher · ties share a rank

California

#47of 9,083 rated members · higher than 99.4%

9,036 lower · 1 same rating · 46 higher · ties share a rank

Where this rating sits · United States

82,596 rated members in 50-point bands · median 800–849 · 437 within 100 points of 2,363 (this player included)

Player · 2,363
01,4502,900

2,350–2,399: 79 members (0%) · highlighted band is the player’s · dashed line is the target

99.7% below 2,400 (82,368 of 82,596; 99.6% below 2,363)

Percentile over time · United States

99.6% higher than · Oct 2026 · rank #283 of 82,596

Since Dec 2025
0 pts

Dec 2025: higher than 99.6% (rank 265 of 81,102)Jan 2026: higher than 99.6% (rank 259 of 79,487)Feb 2026: higher than 99.6% (rank 271 of 83,940)Mar 2026: higher than 99.6% (rank 265 of 80,605)Apr 2026: higher than 99.6% (rank 272 of 80,831)May 2026: higher than 99.6% (rank 269 of 81,236)Jun 2026: higher than 99.6% (rank 270 of 83,290)Jul 2026: higher than 99.6% (rank 265 of 82,736)Aug 2026: higher than 99.6% (rank 278 of 83,080)Sep 2026: higher than 99.6% (rank 282 of 83,635)Oct 2026: higher than 99.6% (rank 283 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 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 Donaldson, William John
MonthRegularQuickBlitzOnline Regular
Oct 20262,363no change2,222no change2,347no change2,383 Pno change · 22 games
Sep 20262,363no change2,222no change2,347no change2,383 Pno change · 22 games
Aug 20262,363-52,222-152,347no change2,383 Pno change · 22 games
Jul 20262,368no change2,237-292,347no change2,383 Pno change · 22 games
Jun 20262,368no change2,266-162,347no change2,383 Pno change · 22 games
May 20262,368+32,282-332,347-402,383 Pno change · 22 games
Apr 20262,365-52,315no change2,387no change2,383 Pno change · 22 games
Mar 20262,370no change2,315no change2,387no change2,383 Pno change · 22 games
Feb 20262,370no change2,315no change2,387no change2,383 Pno change · 22 games
Jan 20262,370no change2,315-252,387-152,383 Pno change · 22 games
Dec 20252,3702,3402,4022,383 P22 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

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.