USCF player statistics

Koski, Avram

USCF 32483981ColoradoUpdated: Nov 2026
Official US Chess record

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Gender
Male
Floor
Regular 138 · Quick 131

US Chess record as of Sep 17, 2026

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Rating format

Regular rating

720+105 since Oct 2026

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

Nov 2026720 Regular
Dec 2025: 837 provisionalJan 2026: 629 provisionalFeb 2026: 591 provisionalMar 2026: 591 provisionalApr 2026: 600 provisionalMay 2026: 600 provisionalJun 2026: 615Jul 2026: 615Aug 2026: 615Sep 2026: 615Oct 2026: 615Nov 2026: 720
Dec 2025Nov 2026
12 updates in this window · open points are provisional · guides mark US Chess classes · unpublished months are skipped, not inactivity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

  • -17 Quick vs Regular

    Typical for 700–799 regular players: -7 (middle half -24 to +7, 2,456 established members). This gap is within the typical range.

How this rating moves

Between consecutive published observations, provisional included.

Biggest gain
+105
Oct 2026 to Nov 2026
Biggest drop
-208
Dec 2025 to Jan 2026
Longest rise
1 update
+105 from Oct 2026 to Nov 2026
Updates that moved
5 of 11
Latest +105, Oct 2026 to Nov 2026
Typical move
±34
Mean absolute change; spread ±74

Regular rating in context

Nov 2026 update

United States

#47,494of 83,032 rated members · higher than 42.7%

35,491 lower · 48 same rating · 47,493 higher · ties share a rank

Colorado

#770of 1,039 rated members · higher than 25.8%

269 lower · 1 same rating · 769 higher · ties share a rank

Where this rating sits · United States

83,032 rated members in 50-point bands · median 850–899 · 9,645 within 100 points of 720 (this player included)

Player · 720
01,4252,850

700–749: 2,386 members (2.8%) · highlighted band is the player’s · dashed line is the target

44.4% below 750 (36,894 of 83,032; 42.7% below 720)

Percentile over time · United States

42.7% higher than · Nov 2026 · rank #47,494 of 83,032

Since Dec 2025
-7.2 pts

Dec 2025: higher than 49.9% (rank 40,554 of 81,102)Jan 2026: higher than 37.3% (rank 49,759 of 79,487)Feb 2026: higher than 35.2% (rank 54,313 of 83,940)Mar 2026: higher than 34.9% (rank 52,365 of 80,605)Apr 2026: higher than 35.7% (rank 51,912 of 80,831)May 2026: higher than 35.6% (rank 52,262 of 81,236)Jun 2026: higher than 37% (rank 52,349 of 83,290)Jul 2026: higher than 37.3% (rank 51,806 of 82,736)Aug 2026: higher than 37.2% (rank 52,120 of 83,080)Sep 2026: higher than 37% (rank 52,577 of 83,635)Oct 2026: higher than 36.6% (rank 52,281 of 82,596)Nov 2026: higher than 42.7% (rank 47,494 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 Colorado 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 Koski, Avram
MonthRegularQuick
Nov 2026720+105703+100
Oct 2026615no change603no change
Sep 2026615no change603no change
Aug 2026615no change603no change
Jul 2026615no change603no change
Jun 2026615+15603+11
May 2026600 Pno change · 21 games592 Pno change · 21 games
Apr 2026600 P+9 · 21 games592 P+8 · 21 games
Mar 2026591 Pno change · 16 games584 Pno change · 16 games
Feb 2026591 P-38 · 16 games584 P-40 · 16 games
Jan 2026629 P-208 · 11 games624 P-207 · 11 games
Dec 2025837 P7 games831 P7 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.