USCF player statistics

Castellani, Michael

USCF 15487348South CarolinaUpdated: Nov 2026
Official US Chess record

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Gender
Male
US Chess reported rank
#6,205 national · #195 in state
Floor
Regular 1,500 · Quick 1,400 · Online Regular 100 · Online Quick 100 · Online Blitz 100
Rated games
Online Regular 17 · Online Quick 15 · Online Blitz 16

US Chess record as of Sep 15, 2026

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Rating format

Regular rating

1,766+2 since Oct 2026

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

Nov 20261,766 Regular
Dec 2025: 1578Jan 2026: 1579Feb 2026: 1579Mar 2026: 1635Apr 2026: 1641May 2026: 1640Jun 2026: 1671Jul 2026: 1715Aug 2026: 1643Sep 2026: 1781Oct 2026: 1764Nov 2026: 1766
Dec 2025Nov 2026
12 updates in this window · +188 first to last · open points are provisional · guides mark US Chess classes · unpublished months are skipped, not inactivity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

  • -101 Quick vs Regular

    Typical for 1,700–1,799 regular players: -125 (middle half -210 to -72, 1,916 established members). This gap is within the typical range.

  • -306 Online Regular vs Regular (provisional)

    Typical for 1,700–1,799 regular players: -444 (middle half -616 to -254, 252 established members). This gap is within the typical range.

  • -389 Online Quick vs Regular (provisional)

    Typical for 1,700–1,799 regular players: -396 (middle half -622 to -163, 274 established members). This gap is within the typical range.

  • -170 Online Blitz vs Regular (provisional)

    Typical for 1,700–1,799 regular players: -118 (middle half -298 to -9, 222 established members). This gap is within the typical range.

How this rating moves

Between consecutive published observations, provisional included.

Biggest gain
+138
Aug 2026 to Sep 2026
Biggest drop
-72
Jul 2026 to Aug 2026
Longest rise
2 updates
+75 from May 2026 to Jul 2026
Updates that moved
10 of 11
Latest +2, Oct 2026 to Nov 2026
Typical move
±33
Mean absolute change; spread ±52.3

Regular rating in context

Nov 2026 update

United States

#8,654of 83,032 rated members · higher than 89.5%

74,357 lower · 22 same rating · 8,653 higher · ties share a rank

South Carolina

#91of 819 rated members · higher than 88.7%

727 lower · 2 same rating · 90 higher · ties share a rank

Where this rating sits · United States

83,032 rated members in 50-point bands · median 850–899 · 5,773 within 100 points of 1,766 (this player included)

Player · 1,766
01,4252,850

1,750–1,799: 1,226 members (1.4%) · highlighted band is the player’s · dashed line is the target

90.5% below 1,800 (75,161 of 83,032; 89.5% below 1,766)

Percentile over time · United States

89.5% higher than · Nov 2026 · rank #8,654 of 83,032

Since Dec 2025
+7.2 pts

Dec 2025: higher than 82.3% (rank 14,309 of 81,102)Jan 2026: higher than 82.1% (rank 14,155 of 79,487)Feb 2026: higher than 82.4% (rank 14,732 of 83,940)Mar 2026: higher than 84.5% (rank 12,442 of 80,605)Apr 2026: higher than 84.8% (rank 12,209 of 80,831)May 2026: higher than 84.8% (rank 12,291 of 81,236)Jun 2026: higher than 86.3% (rank 11,377 of 83,290)Jul 2026: higher than 88% (rank 9,857 of 82,736)Aug 2026: higher than 85.2% (rank 12,208 of 83,080)Sep 2026: higher than 90.1% (rank 8,201 of 83,635)Oct 2026: higher than 89.4% (rank 8,646 of 82,596)Nov 2026: higher than 89.5% (rank 8,654 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 South Carolina 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 Castellani, Michael
MonthRegularQuickOnline RegularOnline QuickOnline Blitz
Nov 20261,766+21,665+41,460 Pno change · 17 games1,377 Pno change · 15 games1,596 Pno change · 16 games
Oct 20261,764-171,661-111,460 Pno change · 17 games1,377 Pno change · 15 games1,596 Pno change · 16 games
Sep 20261,781+1381,672+381,460 Pno change · 17 games1,377 Pno change · 15 games1,596 Pno change · 16 games
Aug 20261,643-721,634-651,460 Pno change · 17 games1,377 Pno change · 15 games1,596 Pno change · 16 games
Jul 20261,715+441,699+641,460 Pno change · 17 games1,377 Pno change · 15 games1,596 Pno change · 16 games
Jun 20261,671+311,635+351,460 Pno change · 17 games1,377 Pno change · 15 games1,596 Pno change · 16 games
May 20261,640-11,600-11,460 Pno change · 17 games1,377 Pno change · 15 games1,596 Pno change · 16 games
Apr 20261,641+61,601+131,460 Pno change · 17 games1,377 Pno change · 15 games1,596 Pno change · 16 games
Mar 20261,635+561,588+691,460 Pno change · 17 games1,377 Pno change · 15 games1,596 Pno change · 16 games
Feb 20261,579no change1,519no change1,460 Pno change · 17 games1,377 Pno change · 15 games1,596 Pno change · 16 games
Jan 20261,579+11,519no change1,460 Pno change · 17 games1,377 Pno change · 15 games1,596 Pno change · 16 games
Dec 20251,5781,5191,460 P17 games1,377 P15 games1,596 P16 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.