USCF player statistics

Ai, Yiming

USCF 30178201PennsylvaniaLatest monthly rating update: Sep 2026

FIDE: FIDE 0

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Regular rating

6240 since Aug 2026

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

Sep 2026624 Regular

Compare format

Dec 2025Sep 2026

10 updates in this window · 0 first to last · open points are provisional · guides mark US Chess classes · unpublished months are skipped, not inactivity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

-67 Quick vs Regular
No national baseline for this rating band yet.
+48 Online Regular vs Regular
No national baseline for this rating band yet.

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

Regular rating in context

Sep 2026 update

United States

37.6%of the comparison population has a lower rating.

31,490 lower · 62 same rating · 52,083 higher

Pennsylvania

32.7%of the comparison population has a lower rating.

864 lower · 1 same rating · 1,774 higher

Where this rating sits · United States

83,635 rated members in 50-point bands · median 800–849 · 10,423 within 100 points of 624

Player · 624

01,4502,900

600–649: 2,641 members (3.1%) · highlighted band is the player’s · dashed line is the target

Target 650

39.2% below 650 (32,836 of 83,635; 37.6% below 624)

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 Pennsylvania 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 Ai, Yiming
Month	Regular	Quick	Online Regular
Sep 2026	624no change	557no change	672no change
Aug 2026	624no change	557no change	672no change
Jul 2026	624no change	557no change	672no change
Jun 2026	624no change	557no change	672no change
May 2026	624no change	557no change	672no change
Apr 2026	624no change	557no change	672no change
Mar 2026	624no change	557no change	672no change
Feb 2026	624no change	557no change	672no change
Jan 2026	624no change	557no change	672no change
Dec 2025	624	557	672