USCF player statistics

Kolenski, Mark

USCF 12873112MassachusettsUpdated: Nov 2026
Official US Chess record

Enter an 8-digit USCF ID, or at least 3 letters of a name. Similar names in MA appear first.

Gender
Male
FIDE
FIDE 0
US Chess reported rank
#12,861 national · #462 in state
Floor
Regular 1,500 · Quick 100 · Blitz 100
Rated games
Quick 21 · Blitz 24

US Chess record as of Sep 15, 2026

Find USCF-rated tournamentsBrowse upcoming events and entry requirements.
Rating format

Regular rating

1,5000 since Oct 2026

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

Nov 20261,500 Regular
Dec 2025: 1500Jan 2026: 1500Feb 2026: 1500Mar 2026: 1500Apr 2026: 1500May 2026: 1500Jun 2026: 1500Jul 2026: 1500Aug 2026: 1500Sep 2026: 1500Oct 2026: 1500Nov 2026: 1500
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12 updates in this window · 0 first to last · open points are provisional · guides mark US Chess classes · unpublished months are skipped, not inactivity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

  • +127 Quick vs Regular (provisional)

    Typical for 1,500–1,599 regular players: -103 (middle half -186 to -48, 2,056 established members). This gap is above the typical range.

  • +91 Blitz vs Regular (provisional)

    Typical for 1,500–1,599 regular players: -189 (middle half -317 to -61, 790 established members). This gap is above 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

#17,223of 83,032 rated members · higher than 78.9%

65,557 lower · 253 same rating · 17,222 higher · ties share a rank

Massachusetts

#601of 1,698 rated members · higher than 64%

1,087 lower · 11 same rating · 600 higher · ties share a rank

Where this rating sits · United States

83,032 rated members in 50-point bands · median 850–899 · 7,059 within 100 points of 1,500 (this player included)

Player · 1,500
01,4252,850

1,500–1,549: 1,881 members (2.2%) · highlighted band is the player’s · dashed line is the target

81.2% below 1,550 (67,438 of 83,032; 78.9% below 1,500)

Percentile over time · United States

78.9% higher than · Nov 2026 · rank #17,223 of 83,032

Since Dec 2025
0 pts

Dec 2025: higher than 78.9% (rank 16,814 of 81,102)Jan 2026: higher than 78.6% (rank 16,698 of 79,487)Feb 2026: higher than 78.9% (rank 17,399 of 83,940)Mar 2026: higher than 78.7% (rank 16,891 of 80,605)Apr 2026: higher than 78.8% (rank 16,826 of 80,831)May 2026: higher than 78.9% (rank 16,897 of 81,236)Jun 2026: higher than 79.3% (rank 16,993 of 83,290)Jul 2026: higher than 79.3% (rank 16,864 of 82,736)Aug 2026: higher than 79.2% (rank 16,971 of 83,080)Sep 2026: higher than 79.2% (rank 17,105 of 83,635)Oct 2026: higher than 78.9% (rank 17,154 of 82,596)Nov 2026: higher than 78.9% (rank 17,223 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 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 Kolenski, Mark
MonthRegularQuickBlitz
Nov 20261,500no change1,627 Pno change · 21 games1,591 Pno change · 24 games
Oct 20261,500no change1,627 Pno change · 21 games1,591 Pno change · 24 games
Sep 20261,500no change1,627 Pno change · 21 games1,591 Pno change · 24 games
Aug 20261,500no change1,627 Pno change · 21 games1,591 Pno change · 24 games
Jul 20261,500no change1,627 Pno change · 21 games1,591 Pno change · 24 games
Jun 20261,500no change1,627 Pno change · 21 games1,591 Pno change · 24 games
May 20261,500no change1,627 Pno change · 21 games1,591 Pno change · 24 games
Apr 20261,500no change1,627 Pno change · 21 games1,591 Pno change · 24 games
Mar 20261,500no change1,627 Pno change · 21 games1,591 Pno change · 24 games
Feb 20261,500no change1,627 Pno change · 21 games1,591 Pno change · 24 games
Jan 20261,500no change1,627 Pno change · 21 games1,591 Pno change · 24 games
Dec 20251,5001,627 P21 games1,591 P24 games
Chess67 DiscordChat with the Chess67 community.Open Find a chess tournamentUpcoming events near you.Browse Find a chess clubClubs and meetups near you.Browse

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.