USCF player statistics

Chor, Kevin Derek

USCF 14646646ArizonaUpdated: Nov 2026
Official US Chess record

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Gender
Male
FIDE title
C
FIDE
FIDE 2090740
TD
Club
US Chess reported rank
#1,042 national · #23 in state
Floor
Regular 2,000 · Quick 1,900 · Blitz 1,700

US Chess record as of Sep 15, 2026

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Rating format

Regular rating

2,131-19 since Oct 2026

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

Nov 20262,131 Regular
Dec 2025: 2183Jan 2026: 2183Feb 2026: 2183Mar 2026: 2183Apr 2026: 2183May 2026: 2183Jun 2026: 2183Jul 2026: 2183Aug 2026: 2183Sep 2026: 2183Oct 2026: 2150Nov 2026: 2131
Dec 2025Nov 2026
12 updates in this window · -52 first to last · open points are provisional · guides mark US Chess classes · unpublished months are skipped, not inactivity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

  • -131 Quick vs Regular

    Typical for 2,100–2,199 regular players: -162 (middle half -256 to -101, 577 established members). This gap is within the typical range.

  • -206 Blitz vs Regular

    Typical for 2,100–2,199 regular players: -198 (middle half -306 to -113, 436 established members). This gap is within the typical range.

How this rating moves

Between consecutive published observations, provisional included.

Biggest gain
—
No gain between published updates yet
Biggest drop
-33
Sep 2026 to Oct 2026
Longest rise
—
No consecutive gains yet
Updates that moved
2 of 11
Latest -19, Oct 2026 to Nov 2026
Typical move
±5
Mean absolute change; spread ±11

Regular rating in context

Nov 2026 update

United States

#1,588of 83,032 rated members · higher than 98%

81,434 lower · 11 same rating · 1,587 higher · ties share a rank

Arizona

#35of 1,707 rated members · higher than 97.9%

1,672 lower · 1 same rating · 34 higher · ties share a rank

Where this rating sits · United States

83,032 rated members in 50-point bands · median 850–899 · 1,911 within 100 points of 2,131 (this player included)

Player · 2,131
01,4252,850

2,100–2,149: 446 members (0.5%) · highlighted band is the player’s · dashed line is the target

98.2% below 2,150 (81,572 of 83,032; 98% below 2,131)

Percentile over time · United States

98% higher than · Nov 2026 · rank #1,588 of 83,032

Since Dec 2025
-0.5 pts

Dec 2025: higher than 98.5% (rank 1,196 of 81,102)Jan 2026: higher than 98.5% (rank 1,176 of 79,487)Feb 2026: higher than 98.5% (rank 1,213 of 83,940)Mar 2026: higher than 98.5% (rank 1,186 of 80,605)Apr 2026: higher than 98.5% (rank 1,185 of 80,831)May 2026: higher than 98.5% (rank 1,187 of 81,236)Jun 2026: higher than 98.5% (rank 1,190 of 83,290)Jul 2026: higher than 98.5% (rank 1,181 of 82,736)Aug 2026: higher than 98.5% (rank 1,191 of 83,080)Sep 2026: higher than 98.5% (rank 1,215 of 83,635)Oct 2026: higher than 98.2% (rank 1,439 of 82,596)Nov 2026: higher than 98% (rank 1,588 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 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 Chor, Kevin Derek
MonthRegularQuickBlitz
Nov 20262,131-192,000-231,925no change
Oct 20262,150-332,023-501,925no change
Sep 20262,183no change2,073-11,925no change
Aug 20262,183no change2,074no change1,925no change
Jul 20262,183no change2,074no change1,925no change
Jun 20262,183no change2,074no change1,925no change
May 20262,183no change2,074no change1,925no change
Apr 20262,183no change2,074no change1,925no change
Mar 20262,183no change2,074no change1,925no change
Feb 20262,183no change2,074no change1,925no change
Jan 20262,183no change2,074no change1,925no change
Dec 20252,1832,0741,925
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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.