USCF player statistics

Alfonso, Katie

USCF 30333856ArizonaLatest monthly rating update: Sep 2026

FIDE: FIDE 0

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Regular rating

317-1 since Aug 2026

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

Sep 2026317 Regular

Compare format

Dec 2025Sep 2026

10 updates in this window · +15 first to last · open points are provisional · guides mark US Chess classes · unpublished months are skipped, not inactivity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

0 Quick vs Regular
No national baseline for this rating band yet.

How this rating moves

Between consecutive published observations, provisional included.

Biggest gain: +16; May 2026 to Jun 2026
Biggest drop: -1; Aug 2026 to Sep 2026
Longest rise: 1 update; +16 from May 2026 to Jun 2026
Updates that moved: 2 of 9; Latest -1, Aug 2026 to Sep 2026
Typical move: ±2; Mean absolute change; spread ±5.4

Regular rating in context

Sep 2026 update

United States

#68,784of 83,635 rated members · higher than 17.6%

14,800 lower · 52 same rating · 68,783 higher · ties share a rank

Arizona

#1,401of 1,686 rated members · higher than 16.9%

285 lower · 1 same rating · 1,400 higher · ties share a rank

Where this rating sits · United States

83,635 rated members in 50-point bands · median 800–849 · 10,452 within 100 points of 317 (this player included)

Player · 317

01,4502,900

300–349: 2,672 members (3.1%) · highlighted band is the player’s · dashed line is the target

Target 350

19.8% below 350 (16,619 of 83,635; 17.6% below 317)

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 Alfonso, Katie
Month	Regular	Quick
Sep 2026	317-1	317no change
Aug 2026	318no change	317no change
Jul 2026	318no change	317no change
Jun 2026	318+16	317+15
May 2026	302no change	302no change
Apr 2026	302no change	302no change
Mar 2026	302no change	302no change
Feb 2026	302no change	302no change
Jan 2026	302no change	302no change
Dec 2025	302	302