USCF player statistics

Deblock, Vivian

USCF 32608412FloridaUpdated: Nov 2026

Official US Chess record

Gender: Female
FIDE: FIDE 0
US Chess reported rank: #66,116 national · #3,369 in state
Floor: Regular 141 · Quick 141
Rated games: Regular 25 · Quick 25

US Chess record as of Sep 17, 2026

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Regular rating

257+82 since Oct 2026

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

Nov 2026257 Regular

Compare format

Dec 2025Nov 2026

12 updates in this window · open points are provisional · guides mark US Chess classes · unpublished months are skipped, not inactivity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

-3 Quick vs Regular
Typical for 200–299 regular players: 0 (middle half -4 to +6, 798 established members). This gap is within the typical range.

How this rating moves

Between consecutive published observations, provisional included.

Biggest gain: +82; Oct 2026 to Nov 2026
Biggest drop: -20; Feb 2026 to Mar 2026
Longest rise: 1 update; +82 from Oct 2026 to Nov 2026
Updates that moved: 4 of 11; Latest +82, Oct 2026 to Nov 2026
Typical move: ±13; Mean absolute change; spread ±28.3

Regular rating in context

Nov 2026 update

United States

#71,534of 83,032 rated members · higher than 13.8%

11,462 lower · 37 same rating · 71,533 higher · ties share a rank

Florida

#3,813of 4,459 rated members · higher than 14.4%

646 lower · 1 same rating · 3,812 higher · ties share a rank

Where this rating sits · United States

83,032 rated members in 50-point bands · median 850–899 · 9,787 within 100 points of 257 (this player included)

Player · 257

01,4252,850

250–299: 2,467 members (2.9%) · highlighted band is the player’s · dashed line is the target

Target 300

16.3% below 300 (13,569 of 83,032; 13.8% below 257)

Percentile over time · United States

13.8% higher than · Nov 2026 · rank #71,534 of 83,032

Since Dec 2025
+5.4 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 Florida 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 Deblock, Vivian
Month	Regular	Quick
Nov 2026	257+82	254+78
Oct 2026	175no change	176no change
Sep 2026	175no change	176no change
Aug 2026	175no change	176no change
Jul 2026	175no change	176no change
Jun 2026	175+43	176+44
May 2026	132 Pno change · 21 games	132 Pno change · 21 games
Apr 2026	132 Pno change · 21 games	132 Pno change · 21 games
Mar 2026	132 P-20 · 21 games	132 P-19 · 21 games
Feb 2026	152 P-1 · 21 games	151 P-1 · 21 games
Jan 2026	153 Pno change · 16 games	152 Pno change · 16 games
Dec 2025	153 P16 games	152 P16 games

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