USCF player statistics

Guo, Yanfeng

USCF 16749316CaliforniaUpdated: Oct 2026
Official US Chess record

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Gender
Male
TD
Club
US Chess reported rank
#1,198 national · #85 in state
Floor
Regular 1,900 · Quick 1,700 · Blitz 1,500

US Chess record as of Sep 15, 2026

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Rating format

Regular rating

2,1520 since Sep 2026

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

Oct 20262,152 Regular
Dec 2025: 2144Jan 2026: 2152Feb 2026: 2152Mar 2026: 2152Apr 2026: 2152May 2026: 2152Jun 2026: 2153Jul 2026: 2153Aug 2026: 2152Sep 2026: 2152Oct 2026: 2152
Dec 2025Oct 2026
11 updates in this window · +8 first to last · open points are provisional · guides mark US Chess classes · unpublished months are skipped, not inactivity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

  • -230 Quick vs Regular

    Typical for 2,100–2,199 regular players: -165 (middle half -259 to -106, 573 established members). This gap is within the typical range.

  • -365 Blitz vs Regular

    Typical for 2,100–2,199 regular players: -205 (middle half -299 to -116, 435 established members). This gap is below the typical range.

How this rating moves

Between consecutive published observations, provisional included.

Biggest gain
+8
Dec 2025 to Jan 2026
Biggest drop
-1
Jul 2026 to Aug 2026
Longest rise
1 update
+8 from Dec 2025 to Jan 2026
Current run
2 updates
Unchanged since Aug 2026
Typical move
±1
Mean absolute change; spread ±2.6

Regular rating in context

Oct 2026 update

United States

#1,423of 82,596 rated members · higher than 98.2%

81,165 lower · 9 same rating · 1,422 higher · ties share a rank

California

#239of 9,083 rated members · higher than 97.3%

8,844 lower · 1 same rating · 238 higher · ties share a rank

Where this rating sits · United States

82,596 rated members in 50-point bands · median 800–849 · 1,757 within 100 points of 2,152 (this player included)

Player · 2,152
01,4502,900

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

98.6% below 2,200 (81,466 of 82,596; 98.2% below 2,152)

Percentile over time · United States

98.2% higher than · Oct 2026 · rank #1,423 of 82,596

Since Dec 2025
0 pts

Dec 2025: higher than 98.2% (rank 1,450 of 81,102)Jan 2026: higher than 98.2% (rank 1,379 of 79,487)Feb 2026: higher than 98.3% (rank 1,418 of 83,940)Mar 2026: higher than 98.2% (rank 1,390 of 80,605)Apr 2026: higher than 98.2% (rank 1,383 of 80,831)May 2026: higher than 98.2% (rank 1,394 of 81,236)Jun 2026: higher than 98.3% (rank 1,394 of 83,290)Jul 2026: higher than 98.3% (rank 1,377 of 82,736)Aug 2026: higher than 98.3% (rank 1,387 of 83,080)Sep 2026: higher than 98.3% (rank 1,410 of 83,635)Oct 2026: higher than 98.2% (rank 1,423 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 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 Guo, Yanfeng
MonthRegularQuickBlitz
Oct 20262,152no change1,922no change1,787no change
Sep 20262,152no change1,922no change1,787no change
Aug 20262,152-11,922no change1,787no change
Jul 20262,153no change1,922no change1,787no change
Jun 20262,153+11,922no change1,787no change
May 20262,152no change1,922no change1,787no change
Apr 20262,152no change1,922no change1,787no change
Mar 20262,152no change1,922no change1,787no change
Feb 20262,152no change1,922no change1,787no change
Jan 20262,152+81,922+141,787no change
Dec 20252,1441,9081,787

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.