USCF player statistics

Crosby, Zachary Mark

USCF 12711607MinnesotaUpdated: Oct 2026
Official US Chess record

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Gender
Male
US Chess reported rank
#9,066 national · #138 in state
Floor
Regular 1,500

US Chess record as of Sep 15, 2026

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Rating format

Regular rating

1,732+86 since Sep 2026

Published rating · Oct 2026 · 11 published updates since Dec 2025

Oct 20261,732 Regular
Dec 2025: 1590Jan 2026: 1590Feb 2026: 1605Mar 2026: 1605Apr 2026: 1649May 2026: 1649Jun 2026: 1649Jul 2026: 1649Aug 2026: 1649Sep 2026: 1646Oct 2026: 1732
Dec 2025Oct 2026
11 updates in this window · +142 first to last · open points are provisional · guides mark US Chess classes · unpublished months are skipped, not inactivity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.

How this rating moves

Between consecutive published observations, provisional included.

Biggest gain
+86
Sep 2026 to Oct 2026
Biggest drop
-3
Aug 2026 to Sep 2026
Longest rise
1 update
+86 from Sep 2026 to Oct 2026
Updates that moved
4 of 10
Latest +86, Sep 2026 to Oct 2026
Typical move
±15
Mean absolute change; spread ±29

Regular rating in context

Oct 2026 update

United States

#9,469of 82,596 rated members · higher than 88.4%

73,096 lower · 32 same rating · 9,468 higher · ties share a rank

Minnesota

#164of 1,009 rated members · higher than 83.6%

844 lower · 2 same rating · 163 higher · ties share a rank

Where this rating sits · United States

82,596 rated members in 50-point bands · median 800–849 · 6,036 within 100 points of 1,732 (this player included)

Player · 1,732
01,4502,900

1,700–1,749: 1,661 members (2%) · highlighted band is the player’s · dashed line is the target

89% below 1,750 (73,557 of 82,596; 88.4% below 1,732)

Percentile over time · United States

88.4% higher than · Oct 2026 · rank #9,469 of 82,596

Since Dec 2025
+5.7 pts

Dec 2025: higher than 82.7% (rank 13,958 of 81,102)Jan 2026: higher than 82.5% (rank 13,839 of 79,487)Feb 2026: higher than 83.6% (rank 13,718 of 83,940)Mar 2026: higher than 83.4% (rank 13,338 of 80,605)Apr 2026: higher than 85.1% (rank 11,947 of 80,831)May 2026: higher than 85.1% (rank 11,999 of 81,236)Jun 2026: higher than 85.5% (rank 12,041 of 83,290)Jul 2026: higher than 85.5% (rank 11,966 of 82,736)Aug 2026: higher than 85.5% (rank 12,012 of 83,080)Sep 2026: higher than 85.3% (rank 12,212 of 83,635)Oct 2026: higher than 88.4% (rank 9,469 of 82,596)
Dec 2025Oct 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 Oct 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 Minnesota 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 Crosby, Zachary Mark
MonthRegular
Oct 20261,732+86
Sep 20261,646-3
Aug 20261,649no change
Jul 20261,649no change
Jun 20261,649no change
May 20261,649no change
Apr 20261,649+44
Mar 20261,605no change
Feb 20261,605+15
Jan 20261,590no change
Dec 20251,590
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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.