USCF player statistics

Arredondo, Mariamarta

USCF 14542488New YorkUpdated: Nov 2026
Official US Chess record

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Gender
Female
Floor
Regular 101 · Quick 102
Rated games
Quick 23

US Chess record as of Sep 15, 2026

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Rating format

Regular rating

3500 since Oct 2026

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

Nov 2026350 Regular
Dec 2025: 350Jan 2026: 350Feb 2026: 350Mar 2026: 350Apr 2026: 350May 2026: 350Jun 2026: 350Jul 2026: 350Aug 2026: 350Sep 2026: 350Oct 2026: 350Nov 2026: 350
Dec 2025Nov 2026
12 updates in this window · 0 first to last · open points are provisional · guides mark US Chess classes · unpublished months are skipped, not inactivity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

  • -248 Quick vs Regular (provisional)

    Typical for 300–399 regular players: -1 (middle half -6 to +6, 1,217 established members). This gap is below 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
11 updates
Unchanged since Dec 2025
Typical move
±0
Mean absolute change; spread ±0

Regular rating in context

Nov 2026 update

United States

#66,796of 83,032 rated members · higher than 19.4%

16,176 lower · 61 same rating · 66,795 higher · ties share a rank

New York

#7,100of 9,119 rated members · higher than 22%

2,012 lower · 8 same rating · 7,099 higher · ties share a rank

Where this rating sits · United States

83,032 rated members in 50-point bands · median 850–899 · 10,512 within 100 points of 350 (this player included)

Player · 350
01,4252,850

350–399: 2,640 members (3.1%) · highlighted band is the player’s · dashed line is the target

22.6% below 400 (18,816 of 83,032; 19.4% below 350)

Percentile over time · United States

19.4% higher than · Nov 2026 · rank #66,796 of 83,032

Since Dec 2025
-0.6 pts

Dec 2025: higher than 20% (rank 64,785 of 81,102)Jan 2026: higher than 19.5% (rank 63,883 of 79,487)Feb 2026: higher than 19.7% (rank 67,329 of 83,940)Mar 2026: higher than 19.6% (rank 64,767 of 80,605)Apr 2026: higher than 19.5% (rank 64,945 of 80,831)May 2026: higher than 19.5% (rank 65,318 of 81,236)Jun 2026: higher than 19.9% (rank 66,585 of 83,290)Jul 2026: higher than 20.1% (rank 66,030 of 82,736)Aug 2026: higher than 19.9% (rank 66,438 of 83,080)Sep 2026: higher than 19.8% (rank 66,951 of 83,635)Oct 2026: higher than 19.5% (rank 66,360 of 82,596)Nov 2026: higher than 19.4% (rank 66,796 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 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 Arredondo, Mariamarta
MonthRegularQuick
Nov 2026350no change102 Pno change · 23 games
Oct 2026350no change102 Pno change · 23 games
Sep 2026350no change102 Pno change · 23 games
Aug 2026350no change102 Pno change · 23 games
Jul 2026350no change102 Pno change · 23 games
Jun 2026350no change102 Pno change · 23 games
May 2026350no change102 Pno change · 23 games
Apr 2026350no change102 P-5 · 23 games
Mar 2026350no change107 Pno change · 23 games
Feb 2026350no change107 Pno change · 23 games
Jan 2026350no change107 Pno change · 23 games
Dec 2025350107 P23 games

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.