USCF player statistics

Callahan, Ian

USCF 30878196ArkansasLatest monthly rating update: Sep 2026
Official US Chess record
Rating format

Online Quick rating

593

Provisional rating · Sep 2026 · 10 published updates since Dec 2025

Sep 2026593 provisional
Dec 2025: 593 provisionalJan 2026: 593 provisionalFeb 2026: 593 provisionalMar 2026: 593 provisionalApr 2026: 593 provisionalMay 2026: 593 provisionalJun 2026: 593 provisionalJul 2026: 593 provisionalAug 2026: 593 provisionalSep 2026: 593 provisional
Dec 2025Sep 2026
10 updates in this window · open points are provisional · guides mark US Chess classes · unpublished months are skipped, not inactivity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.

How this rating moves

Between consecutive published observations, provisional included.

Biggest gain
No gain between published updates yet
Biggest drop
No drop between published updates yet
Longest rise
No consecutive gains yet
Current run
9 updates
Unchanged since Dec 2025
Typical move
±0
Mean absolute change; spread ±0

Online Quick rating in context

Sep 2026 update

United States

15.2%of the comparison population has a lower rating.

1,332 lower · 5 same rating · 7,375 higher

Arkansas

16%of the comparison population has a lower rating.

8 lower · 0 same rating · 42 higher

Where this rating sits · United States

8,712 rated members in 50-point bands · median 1,100–1,149 · 840 within 100 points of 593

Player · 593
01,4002,800

550599: 214 members (2.4%) · highlighted band is the player’s · dashed line is the target

15.6% below 600 (1,363 of 8,712; 15.2% below 593)

How these comparisons are calculated

Chess67 calculations from the Sep 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: it is a rating comparison, not a prediction of future rank. This player is outside that comparison population; no membership rank is assigned.

United States statistics Arkansas 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, Ian
MonthOnline Quick
Sep 2026593 Pno change · 5 games
Aug 2026593 Pno change · 5 games
Jul 2026593 Pno change · 5 games
Jun 2026593 Pno change · 5 games
May 2026593 Pno change · 5 games
Apr 2026593 Pno change · 5 games
Mar 2026593 Pno change · 5 games
Feb 2026593 Pno change · 5 games
Jan 2026593 Pno change · 5 games
Dec 2025593 P5 games

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

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.