USCF player statistics

Mok, Aaron

USCF 16965348CaliforniaUpdated: Nov 2026
Official US Chess record

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

Gender
Male
FIDE
FIDE 39907481
US Chess reported rank
#4,972 national · #353 in state
Floor
Regular 1,600 · Quick 100 · Online Regular 1,300 · Online Quick 100 · Online Blitz 100
Rated games
Online Blitz 22

US Chess record as of Sep 15, 2026

Find USCF-rated tournamentsBrowse upcoming events and entry requirements.
Rating format

Regular rating

1,8400 since Oct 2026

Published rating · Nov 2026 · 12 published updates since Dec 2025

Nov 20261,840 Regular
Dec 2025: 1846Jan 2026: 1846Feb 2026: 1846Mar 2026: 1846Apr 2026: 1846May 2026: 1846Jun 2026: 1846Jul 2026: 1846Aug 2026: 1846Sep 2026: 1840Oct 2026: 1840Nov 2026: 1840
Dec 2025Nov 2026
12 updates in this window · -6 first to last · open points are provisional · guides mark US Chess classes · unpublished months are skipped, not inactivity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

  • -664 Quick vs Regular

    Typical for 1,800–1,899 regular players: -129 (middle half -220 to -73, 1,805 established members). This gap is below the typical range.

  • -309 Online Regular vs Regular

    Typical for 1,800–1,899 regular players: -400 (middle half -622 to -205, 273 established members). This gap is within the typical range.

  • -524 Online Quick vs Regular

    Typical for 1,800–1,899 regular players: -374 (middle half -621 to -197, 269 established members). This gap is within the typical range.

  • -741 Online Blitz vs Regular (provisional)

    Typical for 1,800–1,899 regular players: -126 (middle half -262 to -30, 232 established members). This gap is below the typical range.

How this rating moves

Between consecutive published observations, provisional included.

Biggest gain
—
No gain between published updates yet
Biggest drop
-6
Aug 2026 to Sep 2026
Longest rise
—
No consecutive gains yet
Current run
2 updates
Unchanged since Sep 2026
Typical move
±1
Mean absolute change; spread ±1.8

Regular rating in context

Nov 2026 update

United States

#6,551of 83,032 rated members · higher than 92%

76,456 lower · 26 same rating · 6,550 higher · ties share a rank

California

#910of 9,288 rated members · higher than 90.1%

8,377 lower · 2 same rating · 909 higher · ties share a rank

Where this rating sits · United States

83,032 rated members in 50-point bands · median 850–899 · 5,061 within 100 points of 1,840 (this player included)

Player · 1,840
01,4252,850

1,800–1,849: 1,531 members (1.8%) · highlighted band is the player’s · dashed line is the target

92.3% below 1,850 (76,692 of 83,032; 92% below 1,840)

Percentile over time · United States

92% higher than · Nov 2026 · rank #6,551 of 83,032

Since Dec 2025
-0.1 pts

Dec 2025: higher than 92.1% (rank 6,334 of 81,102)Jan 2026: higher than 92% (rank 6,269 of 79,487)Feb 2026: higher than 92.2% (rank 6,489 of 83,940)Mar 2026: higher than 92.1% (rank 6,315 of 80,605)Apr 2026: higher than 92.1% (rank 6,290 of 80,831)May 2026: higher than 92.2% (rank 6,313 of 81,236)Jun 2026: higher than 92.3% (rank 6,314 of 83,290)Jul 2026: higher than 92.3% (rank 6,268 of 82,736)Aug 2026: higher than 92.4% (rank 6,265 of 83,080)Sep 2026: higher than 92.2% (rank 6,475 of 83,635)Oct 2026: higher than 92.1% (rank 6,496 of 82,596)Nov 2026: higher than 92% (rank 6,551 of 83,032)
Dec 2025Nov 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 Nov 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 California 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 Mok, Aaron
MonthRegularQuickOnline RegularOnline QuickOnline Blitz
Nov 20261,840no change1,176no change1,531no change1,316no change1,099 Pno change · 22 games
Oct 20261,840no change1,176no change1,531no change1,316no change1,099 Pno change · 22 games
Sep 20261,840-61,176no change1,531no change1,316no change1,099 Pno change · 22 games
Aug 20261,846no change1,176no change1,531no change1,316no change1,099 Pno change · 22 games
Jul 20261,846no change1,176no change1,531no change1,316no change1,099 Pno change · 22 games
Jun 20261,846no change1,176no change1,531no change1,316no change1,099 Pno change · 22 games
May 20261,846no change1,176no change1,531no change1,316no change1,099 Pno change · 22 games
Apr 20261,846no change1,176no change1,531no change1,316no change1,099 Pno change · 22 games
Mar 20261,846no change1,176no change1,531no change1,316no change1,099 Pno change · 22 games
Feb 20261,846no change1,176no change1,531no change1,316no change1,099 Pno change · 22 games
Jan 20261,846no change1,176no change1,531no change1,316no change1,099 Pno change · 22 games
Dec 20251,8461,1761,5311,3161,099 P22 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

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.