USCF player statistics

Rivera, Mariano

USCF 12933153MassachusettsUpdated: Nov 2026

Official US Chess record

Biggest rank climb · #80 in Massachusetts (Blitz)

Gender: Male
FIDE: FIDE 39946401
US Chess reported rank: #4,744 national · #178 in state
Floor: Regular 1,600 · Quick 1,400 · Blitz 1,400

US Chess record as of Sep 15, 2026

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Regular rating

1,8530 since Oct 2026

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

Nov 20261,853 Regular

Compare format

Dec 2025Nov 2026

12 updates in this window · +106 first to last · open points are provisional · guides mark US Chess classes · unpublished months are skipped, not inactivity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

-198 Quick vs Regular
Typical for 1,800–1,899 regular players: -129 (middle half -220 to -73, 1,805 established members). This gap is within the typical range.
-192 Blitz vs Regular
Typical for 1,800–1,899 regular players: -208 (middle half -342 to -93, 996 established members). This gap is within the typical range.

How this rating moves

Between consecutive published observations, provisional included.

Biggest gain: +66; Jan 2026 to Feb 2026
Biggest drop: -22; Aug 2026 to Sep 2026
Longest rise: 5 updates; +152 from Jan 2026 to Jun 2026
Current run: 2 updates; Unchanged since Sep 2026
Typical move: ±19; Mean absolute change; spread ±26

Regular rating in context

Nov 2026 update

United States

#6,230of 83,032 rated members · higher than 92.4%

76,773 lower · 30 same rating · 6,229 higher · ties share a rank

Massachusetts

#240of 1,698 rated members · higher than 85.7%

1,456 lower · 3 same rating · 239 higher · ties share a rank

Where this rating sits · United States

83,032 rated members in 50-point bands · median 850–899 · 4,984 within 100 points of 1,853 (this player included)

Player · 1,853

01,4252,850

1,850–1,899: 1,092 members (1.3%) · highlighted band is the player’s · dashed line is the target

Target 1,900

93.6% below 1,900 (77,784 of 83,032; 92.4% below 1,853)

Percentile over time · United States

92.4% higher than · Nov 2026 · rank #6,230 of 83,032

Since Dec 2025
+3.6 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 Massachusetts 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 Rivera, Mariano
Month	Regular	Quick	Blitz
Nov 2026	1,853no change	1,655no change	1,661no change
Oct 2026	1,853no change	1,655no change	1,661no change
Sep 2026	1,853-22	1,655-1	1,661no change
Aug 2026	1,875+6	1,656no change	1,661no change
Jul 2026	1,869-15	1,656no change	1,661no change
Jun 2026	1,884+21	1,656+1	1,661no change
May 2026	1,863+17	1,655+27	1,661no change
Apr 2026	1,846+41	1,628+50	1,661+1
Mar 2026	1,805+7	1,578no change	1,660no change
Feb 2026	1,798+66	1,578no change	1,660no change
Jan 2026	1,732-15	1,578-43	1,660no change
Dec 2025	1,747	1,621	1,660

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