USCF player statistics

De Allaume, William

USCF 15696992IllinoisUpdated: Nov 2026
Official US Chess record

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Gender
Male
FIDE
FIDE 39929752
US Chess reported rank
#8,890 national · #366 in state
Floor
Regular 1,400 · Quick 150 · Blitz 129 · Online Regular 100 · Online Blitz 100
Rated games
Blitz 22 · Online Regular 14

US Chess record as of Sep 15, 2026

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Rating format

Regular rating

1,6540 since Oct 2026

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

Nov 20261,654 Regular
Dec 2025: 1544Jan 2026: 1528Feb 2026: 1528Mar 2026: 1528Apr 2026: 1529May 2026: 1529Jun 2026: 1529Jul 2026: 1529Aug 2026: 1676Sep 2026: 1654Oct 2026: 1654Nov 2026: 1654
Dec 2025Nov 2026
12 updates in this window · +110 first to last · open points are provisional · guides mark US Chess classes · unpublished months are skipped, not inactivity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

  • -280 Quick vs Regular

    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.

  • -304 Blitz vs Regular (provisional)

    Typical for 1,600–1,699 regular players: -212 (middle half -343 to -86, 956 established members). This gap is within the typical range.

  • -963 Online Regular vs Regular (provisional)

    Typical for 1,600–1,699 regular players: -390 (middle half -582 to -194, 264 established members). This gap is below the typical range.

  • -654 Online Blitz vs Regular

    Typical for 1,600–1,699 regular players: -73 (middle half -206 to +68, 215 established members). This gap is below the typical range.

How this rating moves

Between consecutive published observations, provisional included.

Biggest gain
+147
Jul 2026 to Aug 2026
Biggest drop
-22
Aug 2026 to Sep 2026
Longest rise
1 update
+147 from Jul 2026 to Aug 2026
Current run
2 updates
Unchanged since Sep 2026
Typical move
±17
Mean absolute change; spread ±46.1

Regular rating in context

Nov 2026 update

United States

#12,070of 83,032 rated members · higher than 85.4%

70,923 lower · 40 same rating · 12,069 higher · ties share a rank

Illinois

#512of 4,515 rated members · higher than 88.6%

4,003 lower · 1 same rating · 511 higher · ties share a rank

Where this rating sits · United States

83,032 rated members in 50-point bands · median 850–899 · 6,510 within 100 points of 1,654 (this player included)

Player · 1,654
01,4252,850

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

87% below 1,700 (72,289 of 83,032; 85.4% below 1,654)

Percentile over time · United States

85.4% higher than · Nov 2026 · rank #12,070 of 83,032

Since Dec 2025
+4.4 pts

Dec 2025: higher than 81% (rank 15,326 of 81,102)Jan 2026: higher than 80.1% (rank 15,735 of 79,487)Feb 2026: higher than 80.4% (rank 16,396 of 83,940)Mar 2026: higher than 80.2% (rank 15,896 of 80,605)Apr 2026: higher than 80.3% (rank 15,820 of 80,831)May 2026: higher than 80.3% (rank 15,920 of 81,236)Jun 2026: higher than 80.7% (rank 15,975 of 83,290)Jul 2026: higher than 80.7% (rank 15,878 of 82,736)Aug 2026: higher than 86.4% (rank 11,226 of 83,080)Sep 2026: higher than 85.6% (rank 11,964 of 83,635)Oct 2026: higher than 85.4% (rank 11,993 of 82,596)Nov 2026: higher than 85.4% (rank 12,070 of 83,032)
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 Illinois 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 De Allaume, William
MonthRegularQuickBlitzOnline RegularOnline Blitz
Nov 20261,654no change1,374no change1,350 Pno change · 22 games691 Pno change · 14 games1,000no change
Oct 20261,654no change1,374no change1,350 Pno change · 22 games691 Pno change · 14 games1,000no change
Sep 20261,654-221,374no change1,350 Pno change · 22 games691 Pno change · 14 games1,000no change
Aug 20261,676+1471,374no change1,350 Pno change · 22 games691 Pno change · 14 games1,000no change
Jul 20261,529no change1,374no change1,350 Pno change · 22 games691 Pno change · 14 games1,000no change
Jun 20261,529no change1,374no change1,350 Pno change · 22 games691 Pno change · 14 games1,000no change
May 20261,529no change1,374no change1,350 Pno change · 22 games691 Pno change · 14 games1,000no change
Apr 20261,529+11,374no change1,350 Pno change · 22 games691 Pno change · 14 games1,000no change
Mar 20261,528no change1,374no change1,350 Pno change · 22 games691 Pno change · 14 games1,000no change
Feb 20261,528no change1,374no change1,350 Pno change · 22 games691 Pno change · 14 games1,000no change
Jan 20261,528-161,374-21,350 Pno change · 22 games691 Pno change · 14 games1,000no change
Dec 20251,5441,3761,350 P22 games691 P14 games1,000
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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.