USCF player statistics

Zhou, Ivan

USCF 17352346CaliforniaUpdated: Oct 2026
Official US Chess record

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Gender
Male
FIDE
FIDE 30989884
TD
Club
US Chess reported rank
#547 national · #46 in state
Floor
Regular 2,000 · Quick 1,800 · Blitz 1,900 · Online Regular 1,500 · Online Quick 1,500 · Online Blitz 1,600

US Chess record as of Sep 15, 2026

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Rating format

Regular rating

2,267+9 since Sep 2026

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

Oct 20262,267 Regular
Dec 2025: 2198Jan 2026: 2198Feb 2026: 2179Mar 2026: 2189Apr 2026: 2197May 2026: 2209Jun 2026: 2207Jul 2026: 2250Aug 2026: 2274Sep 2026: 2258Oct 2026: 2267
Dec 2025Oct 2026
11 updates in this window · +69 first to last · open points are provisional · guides mark US Chess classes · unpublished months are skipped, not inactivity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

  • -297 Quick vs Regular

    Typical for 2,200–2,299 regular players: -170 (middle half -248 to -94, 546 established members). This gap is below the typical range.

  • -120 Blitz vs Regular

    Typical for 2,200–2,299 regular players: -172 (middle half -283 to -91, 399 established members). This gap is within the typical range.

  • -565 Online Regular vs Regular

    Typical for 2,200–2,299 regular players: -357 (middle half -577 to -184, 146 established members). This gap is within the typical range.

  • -509 Online Quick vs Regular

    Typical for 2,200–2,299 regular players: -323 (middle half -580 to -160, 138 established members). This gap is within the typical range.

  • -434 Online Blitz vs Regular

    Typical for 2,200–2,299 regular players: -231 (middle half -373 to -107, 122 established members). This gap is below the typical range.

How this rating moves

Between consecutive published observations, provisional included.

Biggest gain
+43
Jun 2026 to Jul 2026
Biggest drop
-19
Jan 2026 to Feb 2026
Longest rise
3 updates
+30 from Feb 2026 to May 2026
Updates that moved
9 of 10
Latest +9, Sep 2026 to Oct 2026
Typical move
±14
Mean absolute change; spread ±18.1

Regular rating in context

Oct 2026 update

United States

#561of 82,596 rated members · higher than 99.3%

82,026 lower · 10 same rating · 560 higher · ties share a rank

California

#104of 9,083 rated members · higher than 98.8%

8,979 lower · 1 same rating · 103 higher · ties share a rank

Where this rating sits · United States

82,596 rated members in 50-point bands · median 800–849 · 1,054 within 100 points of 2,267 (this player included)

Player · 2,267
01,4502,900

2,250–2,299: 184 members (0.2%) · highlighted band is the player’s · dashed line is the target

99.4% below 2,300 (82,133 of 82,596; 99.3% below 2,267)

Percentile over time · United States

99.3% higher than · Oct 2026 · rank #561 of 82,596

Since Dec 2025
+0.7 pts

Dec 2025: higher than 98.6% (rank 1,116 of 81,102)Jan 2026: higher than 98.6% (rank 1,093 of 79,487)Feb 2026: higher than 98.5% (rank 1,240 of 83,940)Mar 2026: higher than 98.5% (rank 1,145 of 80,605)Apr 2026: higher than 98.6% (rank 1,104 of 80,831)May 2026: higher than 98.8% (rank 888 of 81,236)Jun 2026: higher than 98.8% (rank 925 of 83,290)Jul 2026: higher than 99.2% (rank 640 of 82,736)Aug 2026: higher than 99.3% (rank 535 of 83,080)Sep 2026: higher than 99.2% (rank 604 of 83,635)Oct 2026: higher than 99.3% (rank 561 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 Zhou, Ivan
MonthRegularQuickBlitzOnline RegularOnline QuickOnline Blitz
Oct 20262,267+91,970no change2,147no change1,702no change1,758no change1,833no change
Sep 20262,258-161,970no change2,147no change1,702no change1,758no change1,833no change
Aug 20262,274+241,970no change2,147+511,702no change1,758no change1,833no change
Jul 20262,250+431,970no change2,096 Pno change · 17 games1,702no change1,758no change1,833no change
Jun 20262,207-21,970no change2,096 Pno change · 17 games1,702no change1,758no change1,833no change
May 20262,209+121,970no change2,096 Pno change · 17 games1,702no change1,758no change1,833no change
Apr 20262,197+81,970no change2,096 Pno change · 17 games1,702no change1,758no change1,833no change
Mar 20262,189+101,970no change2,096 Pno change · 17 games1,702no change1,758no change1,833no change
Feb 20262,179-191,970-312,096 Pno change · 17 games1,702no change1,758no change1,833no change
Jan 20262,198no change2,001no change2,096 Pno change · 17 games1,702no change1,758no change1,833no change
Dec 20252,1982,0012,096 P17 games1,7021,7581,833
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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.