USCF player statistics

Tan, Adam

USCF 15181627CaliforniaUpdated: Nov 2026
Official US Chess record

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Gender
Male
US Chess reported rank
#9,293 national · #655 in state
Floor
Regular 1,400 · Quick 105 · Blitz 100
Rated games
Blitz 18

US Chess record as of Sep 15, 2026

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Rating format

Regular rating

1,6380 since Oct 2026

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

Nov 20261,638 Regular
Dec 2025: 1517Jan 2026: 1517Feb 2026: 1517Mar 2026: 1517Apr 2026: 1563May 2026: 1681Jun 2026: 1649Jul 2026: 1656Aug 2026: 1656Sep 2026: 1637Oct 2026: 1638Nov 2026: 1638
Dec 2025Nov 2026
12 updates in this window · +121 first to last · open points are provisional · guides mark US Chess classes · unpublished months are skipped, not inactivity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

  • -480 Quick vs Regular

    Typical for 1,600–1,699 regular players: -121 (middle half -201 to -59, 2,187 established members). This gap is below the typical range.

  • -402 Blitz vs Regular (provisional)

    Typical for 1,600–1,699 regular players: -212 (middle half -343 to -86, 956 established members). This gap is below the typical range.

How this rating moves

Between consecutive published observations, provisional included.

Biggest gain
+118
Apr 2026 to May 2026
Biggest drop
-32
May 2026 to Jun 2026
Longest rise
2 updates
+164 from Mar 2026 to May 2026
Current run
1 update
Unchanged since Oct 2026
Typical move
±20
Mean absolute change; spread ±40.2

Regular rating in context

Nov 2026 update

United States

#12,588of 83,032 rated members · higher than 84.7%

70,409 lower · 36 same rating · 12,587 higher · ties share a rank

California

#1,674of 9,288 rated members · higher than 81.9%

7,613 lower · 2 same rating · 1,673 higher · ties share a rank

Where this rating sits · United States

83,032 rated members in 50-point bands · median 850–899 · 6,588 within 100 points of 1,638 (this player included)

Player · 1,638
01,4252,850

1,600–1,649: 1,873 members (2.2%) · highlighted band is the player’s · dashed line is the target

85.2% below 1,650 (70,791 of 83,032; 84.7% below 1,638)

Percentile over time · United States

84.7% higher than · Nov 2026 · rank #12,588 of 83,032

Since Dec 2025
+4.8 pts

Dec 2025: higher than 79.9% (rank 16,209 of 81,102)Jan 2026: higher than 79.6% (rank 16,104 of 79,487)Feb 2026: higher than 79.9% (rank 16,784 of 83,940)Mar 2026: higher than 79.7% (rank 16,275 of 80,605)Apr 2026: higher than 81.7% (rank 14,766 of 80,831)May 2026: higher than 86.3% (rank 11,081 of 81,236)Jun 2026: higher than 85.5% (rank 12,041 of 83,290)Jul 2026: higher than 85.7% (rank 11,735 of 82,736)Aug 2026: higher than 85.7% (rank 11,782 of 83,080)Sep 2026: higher than 85% (rank 12,508 of 83,635)Oct 2026: higher than 84.8% (rank 12,513 of 82,596)Nov 2026: higher than 84.7% (rank 12,588 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 California 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 Tan, Adam
MonthRegularQuickBlitz
Nov 20261,638no change1,158no change1,236 Pno change · 18 games
Oct 20261,638+11,158no change1,236 Pno change · 18 games
Sep 20261,637-191,158+441,236 Pno change · 18 games
Aug 20261,656no change1,114no change1,236 Pno change · 18 games
Jul 20261,656+71,114no change1,236 Pno change · 18 games
Jun 20261,649-321,114no change1,236 Pno change · 18 games
May 20261,681+1181,114no change1,236 Pno change · 18 games
Apr 20261,563+461,114no change1,236 Pno change · 18 games
Mar 20261,517no change1,114no change1,236 Pno change · 18 games
Feb 20261,517no change1,114no change1,236 Pno change · 18 games
Jan 20261,517no change1,114no change1,236 Pno change · 18 games
Dec 20251,5171,1141,236 P18 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.