USCF player statistics

Arellano, Derick David

USCF 12916677KentuckyUpdated: Nov 2026

Official US Chess record

Gender: Male
FIDE: FIDE 39907589
US Chess reported rank: #6,586 national · #51 in state
Floor: Regular 1,600 · Quick 1,500 · Blitz 1,600

US Chess record as of Sep 15, 2026

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Regular rating

1,7580 since Oct 2026

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

Nov 20261,758 Regular

Compare format

Dec 2025Nov 2026

12 updates in this window · +13 first to last · open points are provisional · guides mark US Chess classes · unpublished months are skipped, not inactivity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

-26 Quick vs Regular
Typical for 1,700–1,799 regular players: -125 (middle half -210 to -72, 1,916 established members). This gap is above the typical range.
+72 Blitz vs Regular
Typical for 1,700–1,799 regular players: -218 (middle half -343 to -100, 926 established members). This gap is above the typical range.

How this rating moves

Between consecutive published observations, provisional included.

Biggest gain: +13; Mar 2026 to Apr 2026
Biggest drop: —; No drop between published updates yet
Longest rise: 1 update; +13 from Mar 2026 to Apr 2026
Current run: 7 updates; Unchanged since Apr 2026
Typical move: ±1; Mean absolute change; spread ±3.9

Regular rating in context

Nov 2026 update

United States

#8,855of 83,032 rated members · higher than 89.2%

74,147 lower · 31 same rating · 8,854 higher · ties share a rank

Kentucky

#69of 1,032 rated members · higher than 93.2%

962 lower · 2 same rating · 68 higher · ties share a rank

Where this rating sits · United States

83,032 rated members in 50-point bands · median 850–899 · 5,859 within 100 points of 1,758 (this player included)

Player · 1,758

01,4252,850

1,750–1,799: 1,226 members (1.4%) · highlighted band is the player’s · dashed line is the target

Target 1,800

90.5% below 1,800 (75,161 of 83,032; 89.2% below 1,758)

Percentile over time · United States

89.2% higher than · Nov 2026 · rank #8,855 of 83,032

Since Dec 2025
+0.5 pts

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 Kentucky 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 Arellano, Derick David
Month	Regular	Quick	Blitz
Nov 2026	1,758no change	1,732no change	1,830no change
Oct 2026	1,758no change	1,732no change	1,830no change
Sep 2026	1,758no change	1,732no change	1,830no change
Aug 2026	1,758no change	1,732no change	1,830no change
Jul 2026	1,758no change	1,732no change	1,830no change
Jun 2026	1,758no change	1,732no change	1,830no change
May 2026	1,758no change	1,732no change	1,830no change
Apr 2026	1,758+13	1,732+9	1,830no change
Mar 2026	1,745no change	1,723no change	1,830no change
Feb 2026	1,745no change	1,723no change	1,830no change
Jan 2026	1,745no change	1,723no change	1,830no change
Dec 2025	1,745	1,723	1,830

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