USCF player statistics

O-Lee, Sean Chu

USCF 15021175NevadaUpdated: Nov 2026
Official US Chess record

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Gender
Male
US Chess reported rank
#15,104 national · #123 in state
Floor
Regular 1,200 · Quick 150 · Online Regular 100 · Online Quick 100
Rated games
Online Quick 15

US Chess record as of Sep 15, 2026

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Rating format

Regular rating

1,427+18 since Oct 2026

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

Nov 20261,427 Regular
Dec 2025: 1307Jan 2026: 1307Feb 2026: 1307Mar 2026: 1432Apr 2026: 1409May 2026: 1409Jun 2026: 1409Jul 2026: 1409Aug 2026: 1409Sep 2026: 1409Oct 2026: 1409Nov 2026: 1427
Dec 2025Nov 2026
12 updates in this window · +120 first to last · open points are provisional · guides mark US Chess classes · unpublished months are skipped, not inactivity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

  • -61 Quick vs Regular

    Typical for 1,400–1,499 regular players: -85 (middle half -160 to -36, 2,037 established members). This gap is within the typical range.

  • -393 Online Regular vs Regular

    Typical for 1,400–1,499 regular players: -310 (middle half -476 to -158, 204 established members). This gap is within the typical range.

  • -404 Online Quick vs Regular (provisional)

    Typical for 1,400–1,499 regular players: -222 (middle half -449 to -58, 212 established members). This gap is within the typical range.

How this rating moves

Between consecutive published observations, provisional included.

Biggest gain
+125
Feb 2026 to Mar 2026
Biggest drop
-23
Mar 2026 to Apr 2026
Longest rise
1 update
+125 from Feb 2026 to Mar 2026
Updates that moved
3 of 11
Latest +18, Oct 2026 to Nov 2026
Typical move
±15
Mean absolute change; spread ±38.9

Regular rating in context

Nov 2026 update

United States

#19,788of 83,032 rated members · higher than 76.1%

63,205 lower · 40 same rating · 19,787 higher · ties share a rank

Nevada

#205of 738 rated members · higher than 72.2%

533 lower · 1 same rating · 204 higher · ties share a rank

Where this rating sits · United States

83,032 rated members in 50-point bands · median 850–899 · 7,060 within 100 points of 1,427 (this player included)

Player · 1,427
01,4252,850

1,400–1,449: 1,880 members (2.2%) · highlighted band is the player’s · dashed line is the target

77% below 1,450 (63,991 of 83,032; 76.1% below 1,427)

Percentile over time · United States

76.1% higher than · Nov 2026 · rank #19,788 of 83,032

Since Dec 2025
+4.8 pts

Dec 2025: higher than 71.3% (rank 23,238 of 81,102)Jan 2026: higher than 70.9% (rank 23,105 of 79,487)Feb 2026: higher than 71.2% (rank 24,144 of 83,940)Mar 2026: higher than 76% (rank 19,262 of 80,605)Apr 2026: higher than 75.3% (rank 19,913 of 80,831)May 2026: higher than 75.3% (rank 19,986 of 81,236)Jun 2026: higher than 75.7% (rank 20,157 of 83,290)Jul 2026: higher than 75.8% (rank 19,948 of 82,736)Aug 2026: higher than 75.8% (rank 20,056 of 83,080)Sep 2026: higher than 75.8% (rank 20,200 of 83,635)Oct 2026: higher than 75.4% (rank 20,277 of 82,596)Nov 2026: higher than 76.1% (rank 19,788 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 Nevada 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 O-Lee, Sean Chu
MonthRegularQuickOnline RegularOnline Quick
Nov 20261,427+181,366-41,034no change1,023 Pno change · 15 games
Oct 20261,409no change1,370no change1,034no change1,023 Pno change · 15 games
Sep 20261,409no change1,370no change1,034no change1,023 Pno change · 15 games
Aug 20261,409no change1,370no change1,034no change1,023 Pno change · 15 games
Jul 20261,409no change1,370no change1,034no change1,023 Pno change · 15 games
Jun 20261,409no change1,370no change1,034no change1,023 Pno change · 15 games
May 20261,409no change1,370no change1,034no change1,023 Pno change · 15 games
Apr 20261,409-231,370no change1,034no change1,023 Pno change · 15 games
Mar 20261,432+1251,370+1561,034no change1,023 Pno change · 15 games
Feb 20261,307no change1,214no change1,034no change1,023 Pno change · 15 games
Jan 20261,307no change1,214no change1,034no change1,023 Pno change · 15 games
Dec 20251,3071,2141,0341,023 P15 games
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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.