USCF player statistics

Willems, Ari

USCF 32597973FloridaUpdated: Oct 2026

Official US Chess record

Gender: Female
US Chess reported rank: #47,256 national · #2,389 in state
Floor: Regular 150 · Quick 150

US Chess record as of Sep 17, 2026

Find USCF-rated tournamentsBrowse upcoming events and entry requirements.

Regular rating

5520 since Sep 2026

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

Oct 2026552 Regular

Compare format

Dec 2025Oct 2026

11 updates in this window · open points are provisional · guides mark US Chess classes · unpublished months are skipped, not inactivity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

+9 Quick vs Regular
Typical for 500–599 regular players: -3 (middle half -12 to +9, 2,124 established members). This gap is within the typical range.

How this rating moves

Between consecutive published observations, provisional included.

Biggest gain: +86; Mar 2026 to Apr 2026
Biggest drop: -76; Jan 2026 to Feb 2026
Longest rise: 2 updates; +87 from Feb 2026 to Apr 2026
Current run: 4 updates; Unchanged since Jun 2026
Typical move: ±21; Mean absolute change; spread ±40.8

Regular rating in context

Oct 2026 update

United States

#55,594of 82,596 rated members · higher than 32.6%

26,939 lower · 64 same rating · 55,593 higher · ties share a rank

Florida

#2,904of 4,341 rated members · higher than 33%

1,434 lower · 4 same rating · 2,903 higher · ties share a rank

Where this rating sits · United States

82,596 rated members in 50-point bands · median 800–849 · 10,567 within 100 points of 552 (this player included)

Player · 552

01,4502,900

550–599: 2,631 members (3.1%) · highlighted band is the player’s · dashed line is the target

Target 600

35.6% below 600 (29,460 of 82,596; 32.6% below 552)

Percentile over time · United States

32.6% higher than · Oct 2026 · rank #55,594 of 82,596

Since Dec 2025
+3.1 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 Florida 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 Willems, Ari
Month	Regular	Quick
Oct 2026	552no change	561no change
Sep 2026	552no change	561no change
Aug 2026	552no change	561no change
Jul 2026	552no change	561no change
Jun 2026	552+46	561+47
May 2026	506no change	514no change
Apr 2026	506+86	514+84
Mar 2026	420+1	430+2
Feb 2026	419-76	428-67
Jan 2026	495-2	495-4
Dec 2025	497 P15 games	499 P15 games

Chess67 DiscordChat with the Chess67 community.Open Find a chess tournamentUpcoming events near you.Browse Find a chess clubClubs and meetups near you.Browse