USCF player statistics

Dedona, Mark

USCF 14684907New YorkUpdated: Nov 2026
Official US Chess record

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Gender
Male
FIDE
FIDE 30920256
TD
Local
US Chess reported rank
#1,126 national · #127 in state
Floor
Regular 2,000 · Quick 1,900 · Blitz 1,800 · Online Regular 1,700 · Online Quick 100 · Online Blitz 1,600
Rated games
Online Quick 24

US Chess record as of Sep 15, 2026

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Rating format

Regular rating

2,179+2 since Oct 2026

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

Nov 20262,179 Regular
Dec 2025: 2239Jan 2026: 2239Feb 2026: 2193Mar 2026: 2196Apr 2026: 2198May 2026: 2182Jun 2026: 2182Jul 2026: 2195Aug 2026: 2171Sep 2026: 2165Oct 2026: 2177Nov 2026: 2179
Dec 2025Nov 2026
12 updates in this window · -60 first to last · open points are provisional · guides mark US Chess classes · unpublished months are skipped, not inactivity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

  • -137 Quick vs Regular

    Typical for 2,100–2,199 regular players: -162 (middle half -256 to -101, 577 established members). This gap is within the typical range.

  • -163 Blitz vs Regular

    Typical for 2,100–2,199 regular players: -198 (middle half -306 to -113, 436 established members). This gap is within the typical range.

  • -310 Online Regular vs Regular

    Typical for 2,100–2,199 regular players: -448 (middle half -650 to -276, 175 established members). This gap is within the typical range.

  • -194 Online Quick vs Regular (provisional)

    Typical for 2,100–2,199 regular players: -369 (middle half -561 to -238, 164 established members). This gap is above the typical range.

  • -282 Online Blitz vs Regular

    Typical for 2,100–2,199 regular players: -210 (middle half -324 to -106, 150 established members). This gap is within the typical range.

How this rating moves

Between consecutive published observations, provisional included.

Biggest gain
+13
Jun 2026 to Jul 2026
Biggest drop
-46
Jan 2026 to Feb 2026
Longest rise
2 updates
+14 from Sep 2026 to Nov 2026
Updates that moved
9 of 11
Latest +2, Oct 2026 to Nov 2026
Typical move
±11
Mean absolute change; spread ±17.3

Regular rating in context

Nov 2026 update

United States

#1,273of 83,032 rated members · higher than 98.4%

81,749 lower · 11 same rating · 1,272 higher · ties share a rank

New York

#155of 9,119 rated members · higher than 98.3%

8,964 lower · 1 same rating · 154 higher · ties share a rank

Where this rating sits · United States

83,032 rated members in 50-point bands · median 850–899 · 1,573 within 100 points of 2,179 (this player included)

Player · 2,179
01,4252,850

2,150–2,199: 314 members (0.3%) · highlighted band is the player’s · dashed line is the target

98.6% below 2,200 (81,886 of 83,032; 98.4% below 2,179)

Percentile over time · United States

98.4% higher than · Nov 2026 · rank #1,273 of 83,032

Since Dec 2025
-0.7 pts

Dec 2025: higher than 99.1% (rank 706 of 81,102)Jan 2026: higher than 99.1% (rank 684 of 79,487)Feb 2026: higher than 98.6% (rank 1,151 of 83,940)Mar 2026: higher than 98.6% (rank 1,109 of 80,605)Apr 2026: higher than 98.6% (rank 1,096 of 80,831)May 2026: higher than 98.5% (rank 1,195 of 81,236)Jun 2026: higher than 98.5% (rank 1,200 of 83,290)Jul 2026: higher than 98.6% (rank 1,115 of 82,736)Aug 2026: higher than 98.4% (rank 1,257 of 83,080)Sep 2026: higher than 98.4% (rank 1,318 of 83,635)Oct 2026: higher than 98.4% (rank 1,266 of 82,596)Nov 2026: higher than 98.4% (rank 1,273 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 Dedona, Mark
MonthRegularQuickBlitzOnline RegularOnline QuickOnline Blitz
Nov 20262,179+22,042+362,016+211,869no change1,985 Pno change · 24 games1,897no change
Oct 20262,177+122,006no change1,995no change1,869no change1,985 Pno change · 24 games1,897no change
Sep 20262,165-62,006+61,995+71,869no change1,985 Pno change · 24 games1,897no change
Aug 20262,171-242,000-291,988no change1,869no change1,985 Pno change · 24 games1,897no change
Jul 20262,195+132,029+221,988no change1,869no change1,985 Pno change · 24 games1,897no change
Jun 20262,182no change2,007no change1,988no change1,869no change1,985 Pno change · 24 games1,897no change
May 20262,182-162,007-831,988-381,869no change1,985 Pno change · 24 games1,897no change
Apr 20262,198+22,090-112,026no change1,869no change1,985 Pno change · 24 games1,897no change
Mar 20262,196+32,101+12,026no change1,869no change1,985 Pno change · 24 games1,897no change
Feb 20262,193-462,100-282,026+591,869no change1,985 Pno change · 24 games1,897no change
Jan 20262,239no change2,128no change1,967no change1,869no change1,985 Pno change · 24 games1,897no change
Dec 20252,2392,1281,9671,8691,985 P24 games1,897
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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.