USCF player statistics

Guo, Ethan

USCF 16761994CaliforniaUpdated: Oct 2026
Official US Chess record

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Gender
Male
FIDE
FIDE 30976359
US Chess reported rank
#199 national · #13 in state
Floor
Regular 2,200 · Quick 1,800 · Blitz 2,000 · Online Regular 1,700 · Online Quick 1,200 · Online Blitz 100
Rated games
Online Blitz 21

US Chess record as of Aug 18, 2026

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Rating format

Regular rating

2,420-7 since Sep 2026

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

Oct 20262,420 Regular
Dec 2025: 2367Jan 2026: 2359Feb 2026: 2387Mar 2026: 2412Apr 2026: 2436May 2026: 2437Jun 2026: 2425Jul 2026: 2434Aug 2026: 2422Sep 2026: 2427Oct 2026: 2420
Dec 2025Oct 2026
11 updates in this window · +53 first to last · open points are provisional · guides mark US Chess classes · unpublished months are skipped, not inactivity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

  • -322 Quick vs Regular

    Typical for 2,400–2,499 regular players: -173 (middle half -328 to -90, 103 established members). This gap is within the typical range.

  • -205 Blitz vs Regular

    Typical for 2,400–2,499 regular players: -148 (middle half -258 to -57, 88 established members). This gap is within the typical range.

  • -522 Online Regular vs Regular

    Typical for 2,400–2,499 regular players: -242 (middle half -330 to -138, 32 established members). This gap is below the typical range.

  • -1,024 Online Quick vs Regular

    No national baseline for this rating band yet.

  • -860 Online Blitz vs Regular (provisional)

    Typical for 2,400–2,499 regular players: -224 (middle half -410 to -136, 34 established members). This gap is below the typical range.

How this rating moves

Between consecutive published observations, provisional included.

Biggest gain
+28
Jan 2026 to Feb 2026
Biggest drop
-12
May 2026 to Jun 2026
Longest rise
4 updates
+78 from Jan 2026 to May 2026
Updates that moved
10 of 10
Latest -7, Sep 2026 to Oct 2026
Typical move
±13
Mean absolute change; spread ±15.7

Regular rating in context

Oct 2026 update

United States

#203of 82,596 rated members · higher than 99.7%

82,391 lower · 3 same rating · 202 higher · ties share a rank

California

#33of 9,083 rated members · higher than 99.6%

9,050 lower · 1 same rating · 32 higher · ties share a rank

Where this rating sits · United States

82,596 rated members in 50-point bands · median 800–849 · 295 within 100 points of 2,420 (this player included)

Player · 2,420
01,4502,900

2,400–2,449: 58 members (0%) · highlighted band is the player’s · dashed line is the target

99.7% below 2,450 (82,426 of 82,596; 99.7% below 2,420)

Percentile over time · United States

99.7% higher than · Oct 2026 · rank #203 of 82,596

Since Dec 2025
+0.1 pts

Dec 2025: higher than 99.6% (rank 271 of 81,102)Jan 2026: higher than 99.6% (rank 283 of 79,487)Feb 2026: higher than 99.7% (rank 247 of 83,940)Mar 2026: higher than 99.7% (rank 214 of 80,605)Apr 2026: higher than 99.7% (rank 179 of 80,831)May 2026: higher than 99.7% (rank 182 of 81,236)Jun 2026: higher than 99.7% (rank 201 of 83,290)Jul 2026: higher than 99.7% (rank 181 of 82,736)Aug 2026: higher than 99.7% (rank 200 of 83,080)Sep 2026: higher than 99.7% (rank 199 of 83,635)Oct 2026: higher than 99.7% (rank 203 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, Ethan
MonthRegularQuickBlitzOnline RegularOnline QuickOnline Blitz
Oct 20262,420-72,098no change2,215no change1,898no change1,396no change1,560 Pno change · 21 games
Sep 20262,427+52,098+222,215+11,898no change1,396no change1,560 Pno change · 21 games
Aug 20262,422-122,076no change2,214no change1,898no change1,396no change1,560 Pno change · 21 games
Jul 20262,434+92,076no change2,214no change1,898no change1,396no change1,560 Pno change · 21 games
Jun 20262,425-122,076no change2,214-91,898no change1,396no change1,560 Pno change · 21 games
May 20262,437+12,076no change2,223no change1,898no change1,396no change1,560 Pno change · 21 games
Apr 20262,436+242,076no change2,223no change1,898no change1,396no change1,560 Pno change · 21 games
Mar 20262,412+252,076+202,223+221,898no change1,396no change1,560 Pno change · 21 games
Feb 20262,387+282,056+122,201-31,898no change1,396no change1,560 Pno change · 21 games
Jan 20262,359-82,044no change2,204+591,898no change1,396no change1,560 Pno change · 21 games
Dec 20252,3672,0442,1451,8981,3961,560 P21 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.