USCF player statistics

Callahan, Liam Pierce

USCF 31357976AlaskaUpdated: Oct 2026

Official US Chess record

Gender: Male
FIDE: FIDE 39961265
US Chess reported rank: #10,974 national · #10 in state
Floor: Regular 1,300 · Quick 1,300 · Blitz 1,400

US Chess record as of Sep 16, 2026

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Regular rating

1,589+17 since Sep 2026

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

Oct 20261,589 Regular

Compare format

Dec 2025Oct 2026

11 updates in this window · +19 first to last · open points are provisional · guides mark US Chess classes · unpublished months are skipped, not inactivity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

-33 Quick vs Regular
Typical for 1,500–1,599 regular players: -106 (middle half -187 to -48, 2,101 established members). This gap is above the typical range.
-33 Blitz vs Regular
Typical for 1,500–1,599 regular players: -190 (middle half -311 to -68, 798 established members). This gap is above the typical range.

How this rating moves

Between consecutive published observations, provisional included.

Biggest gain: +17; Sep 2026 to Oct 2026
Biggest drop: -11; Apr 2026 to May 2026
Longest rise: 2 updates; +13 from May 2026 to Jul 2026
Updates that moved: 4 of 10; Latest +17, Sep 2026 to Oct 2026
Typical move: ±4; Mean absolute change; spread ±7.6

Regular rating in context

Oct 2026 update

United States

#14,310of 82,596 rated members · higher than 82.6%

68,258 lower · 29 same rating · 14,309 higher · ties share a rank

Alaska

#19of 164 rated members · higher than 88.4%

145 lower · 1 same rating · 18 higher · ties share a rank

Where this rating sits · United States

82,596 rated members in 50-point bands · median 800–849 · 6,759 within 100 points of 1,589 (this player included)

Player · 1,589

01,4502,900

1,550–1,599: 1,488 members (1.8%) · highlighted band is the player’s · dashed line is the target

Target 1,600

83% below 1,600 (68,582 of 82,596; 82.6% below 1,589)

Percentile over time · United States

82.6% higher than · Oct 2026 · rank #14,310 of 82,596

Since Dec 2025
+0.6 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 Alaska 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 Callahan, Liam Pierce
Month	Regular	Quick	Blitz
Oct 2026	1,589+17	1,556+6	1,556no change
Sep 2026	1,572no change	1,550no change	1,556no change
Aug 2026	1,572no change	1,550no change	1,556no change
Jul 2026	1,572+1	1,550no change	1,556no change
Jun 2026	1,571+12	1,550+7	1,556+8
May 2026	1,559-11	1,543-10	1,548no change
Apr 2026	1,570no change	1,553no change	1,548-54
Mar 2026	1,570no change	1,553-10	1,602+249
Feb 2026	1,570no change	1,563no change	1,353+1
Jan 2026	1,570no change	1,563-2	1,352 P+82 · 22 games
Dec 2025	1,570	1,565	1,270 P18 games

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