USCF player statistics

Yoo, David J

USCF 30166549New YorkUpdated: Oct 2026

Official US Chess record

Gender: Male
FIDE: FIDE 566007305
US Chess reported rank: #5,296 national · #622 in state
Floor: Regular 1,600 · Quick 1,500 · Blitz 1,300

US Chess record as of Sep 15, 2026

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Regular rating

1,738-84 since Sep 2026

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

Oct 20261,738 Regular

Compare format

Dec 2025Oct 2026

11 updates in this window · +108 first to last · open points are provisional · guides mark US Chess classes · unpublished months are skipped, not inactivity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

-81 Quick vs Regular
Typical for 1,700–1,799 regular players: -124 (middle half -209 to -70, 1,897 established members). This gap is within the typical range.
-198 Blitz vs Regular
Typical for 1,700–1,799 regular players: -211 (middle half -332 to -94, 917 established members). This gap is within the typical range.

How this rating moves

Between consecutive published observations, provisional included.

Biggest gain: +103; Jul 2026 to Aug 2026
Biggest drop: -84; Sep 2026 to Oct 2026
Longest rise: 3 updates; +144 from Mar 2026 to Jun 2026
Updates that moved: 10 of 10; Latest -84, Sep 2026 to Oct 2026
Typical move: ±48; Mean absolute change; spread ±58.6

Regular rating in context

Oct 2026 update

United States

#9,311of 82,596 rated members · higher than 88.7%

73,264 lower · 22 same rating · 9,310 higher · ties share a rank

New York

#1,014of 9,044 rated members · higher than 88.7%

8,028 lower · 3 same rating · 1,013 higher · ties share a rank

Where this rating sits · United States

82,596 rated members in 50-point bands · median 800–849 · 6,009 within 100 points of 1,738 (this player included)

Player · 1,738

01,4502,900

1,700–1,749: 1,661 members (2%) · highlighted band is the player’s · dashed line is the target

Target 1,750

89% below 1,750 (73,557 of 82,596; 88.7% below 1,738)

Percentile over time · United States

88.7% higher than · Oct 2026 · rank #9,311 of 82,596

Since Dec 2025
+4.2 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 New York 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 Yoo, David J
Month	Regular	Quick	Blitz
Oct 2026	1,738-84	1,657-69	1,540+35
Sep 2026	1,822+37	1,726+19	1,505no change
Aug 2026	1,785+103	1,707+81	1,505+98
Jul 2026	1,682-10	1,626-22	1,407no change
Jun 2026	1,692+69	1,648+103	1,407no change
May 2026	1,623+24	1,545+42	1,407-6
Apr 2026	1,599+51	1,503+3	1,413no change
Mar 2026	1,548-30	1,500-6	1,413no change
Feb 2026	1,578-63	1,506-61	1,413+32
Jan 2026	1,641+11	1,567+11	1,381no change
Dec 2025	1,630	1,556	1,381

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