USCF player statistics

Bui, Ann

USCF 33146310OregonUpdated: Nov 2026
Official US Chess record

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Gender
Female
US Chess reported rank
#52,478 national · #908 in state
Floor
Regular 109 · Quick 109
Rated games
Regular 5 · Quick 5

US Chess record as of Sep 18, 2026

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Rating format

Regular rating

451

Provisional rating · Nov 2026 · 5 published updates since Jul 2026

Nov 2026451 provisional
Jul 2026: 451 provisionalAug 2026: 451 provisionalSep 2026: 451 provisionalOct 2026: 451 provisionalNov 2026: 451 provisional
Jul 2026Nov 2026
5 updates in this window · open points are provisional · guides mark US Chess classes · unpublished months are skipped, not inactivity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

  • -9 Quick vs Regular (provisional)

    Typical for 400–499 regular players: -1 (middle half -9 to +7, 1,654 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
—
No drop between published updates yet
Longest rise
—
No consecutive gains yet
Current run
4 updates
Unchanged since Jul 2026
Typical move
±0
Mean absolute change; spread ±0

Regular rating in context

Nov 2026 update

United States

#61,368of 83,032 rated members · higher than 26%

21,614 lower · 51 same rating · 61,367 higher · ties share a rank

Oregon

#1,043of 1,501 rated members · higher than 30.4%

457 lower · 2 same rating · 1,042 higher · ties share a rank

Where this rating sits · United States

83,032 rated members in 50-point bands · median 850–899 · 10,767 within 100 points of 451 (this player included)

Player · 451
01,4252,850

450–499: 2,670 members (3.2%) · highlighted band is the player’s · dashed line is the target

29.1% below 500 (24,225 of 83,032; 26% below 451)

Percentile over time · United States

26% higher than · Nov 2026 · rank #61,368 of 83,032

Since Jul 2026
-0.7 pts

Jul 2026: higher than 26.7% (rank 60,558 of 82,736)Aug 2026: higher than 26.5% (rank 60,944 of 83,080)Sep 2026: higher than 26.4% (rank 61,475 of 83,635)Oct 2026: higher than 26.1% (rank 60,952 of 82,596)Nov 2026: higher than 26% (rank 61,368 of 83,032)
Jul 2026Nov 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 Oregon 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 Bui, Ann
MonthRegularQuick
Nov 2026451 Pno change · 5 games442 Pno change · 5 games
Oct 2026451 Pno change · 5 games442 Pno change · 5 games
Sep 2026451 Pno change · 5 games442 Pno change · 5 games
Aug 2026451 Pno change · 5 games442 Pno change · 5 games
Jul 2026451 P5 games442 P5 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.