USCF player statistics

Killeen, Ronan

USCF 31665727ArizonaLatest monthly rating update: Sep 2026
Official US Chess record
Rating format

Regular rating

9400 since Aug 2026

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

Sep 2026940 Regular
Dec 2025: 659Jan 2026: 676Feb 2026: 940Mar 2026: 940Apr 2026: 940May 2026: 940Jun 2026: 940Jul 2026: 940Aug 2026: 940Sep 2026: 940
Dec 2025Sep 2026
10 updates in this window · +281 first to last · open points are provisional · guides mark US Chess classes · unpublished months are skipped, not inactivity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

  • -51 Quick vs Regular

    No national baseline for this rating band yet.

  • -58 Blitz vs Regular

    No national baseline for this rating band yet.

How this rating moves

Between consecutive published observations, provisional included.

Biggest gain
+264
Jan 2026 to Feb 2026
Biggest drop
No drop between published updates yet
Longest rise
2 updates
+281 from Dec 2025 to Feb 2026
Current run
7 updates
Unchanged since Feb 2026
Typical move
±31
Mean absolute change; spread ±87.5

Regular rating in context

Sep 2026 update

United States

#37,398of 83,635 rated members · higher than 55.2%

46,193 lower · 45 same rating · 37,397 higher · ties share a rank

Arizona

#812of 1,686 rated members · higher than 51.8%

874 lower · 1 same rating · 811 higher · ties share a rank

Where this rating sits · United States

83,635 rated members in 50-point bands · median 800–849 · 8,443 within 100 points of 940 (this player included)

Player · 940
01,4502,900

900949: 2,108 members (2.5%) · highlighted band is the player’s · dashed line is the target

55.7% below 950 (46,667 of 83,635; 55.2% below 940)

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, with this player at their recorded rating: it is a rating comparison, not a prediction of future rank.

United States statistics Arizona 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 Killeen, Ronan
MonthRegularQuickBlitz
Sep 2026940no change889no change882no change
Aug 2026940no change889no change882no change
Jul 2026940no change889no change882no change
Jun 2026940no change889no change882no change
May 2026940no change889-61882no change
Apr 2026940no change950no change882no change
Mar 2026940no change950-41882no change
Feb 2026940+264991+218882no change
Jan 2026676+17773-9882no change
Dec 2025659782882

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