USCF player statistics

Zhao, Serah

USCF 30343840CaliforniaUpdated: Oct 2026
Official US Chess record

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Gender
Female
FIDE
FIDE 39983706
US Chess reported rank
#14,881 national · #945 in state
Floor
Regular 1,300 · Quick 150 · Blitz 142 · Online Regular 100 · Online Quick 100 · Online Blitz 100
Rated games
Online Quick 23 · Online Blitz 16

US Chess record as of Sep 15, 2026

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Rating format

Regular rating

1,376-42 since Sep 2026

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

Oct 20261,376 Regular
Dec 2025: 1394Jan 2026: 1454Feb 2026: 1552Mar 2026: 1531Apr 2026: 1534May 2026: 1490Jun 2026: 1445Jul 2026: 1562Aug 2026: 1562Sep 2026: 1418Oct 2026: 1376
Dec 2025Oct 2026
11 updates in this window · -18 first to last · open points are provisional · guides mark US Chess classes · unpublished months are skipped, not inactivity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

  • -62 Quick vs Regular

    Typical for 1,300–1,399 regular players: -72 (middle half -140 to -27, 1,944 established members). This gap is within the typical range.

  • -453 Blitz vs Regular

    Typical for 1,300–1,399 regular players: -199 (middle half -330 to -58, 571 established members). This gap is below the typical range.

  • -277 Online Regular vs Regular

    Typical for 1,300–1,399 regular players: -240 (middle half -418 to -108, 187 established members). This gap is within the typical range.

  • -1,104 Online Quick vs Regular (provisional)

    Typical for 1,300–1,399 regular players: -208 (middle half -443 to -12, 191 established members). This gap is below the typical range.

  • -534 Online Blitz vs Regular (provisional)

    Typical for 1,300–1,399 regular players: -1 (middle half -136 to +136, 135 established members). This gap is below the typical range.

How this rating moves

Between consecutive published observations, provisional included.

Biggest gain
+117
Jun 2026 to Jul 2026
Biggest drop
-144
Aug 2026 to Sep 2026
Longest rise
2 updates
+158 from Dec 2025 to Feb 2026
Updates that moved
9 of 10
Latest -42, Sep 2026 to Oct 2026
Typical move
±57
Mean absolute change; spread ±77.3

Regular rating in context

Oct 2026 update

United States

#21,563of 82,596 rated members · higher than 73.8%

61,007 lower · 27 same rating · 21,562 higher · ties share a rank

California

#2,618of 9,083 rated members · higher than 71.1%

6,462 lower · 4 same rating · 2,617 higher · ties share a rank

Where this rating sits · United States

82,596 rated members in 50-point bands · median 800–849 · 6,880 within 100 points of 1,376 (this player included)

Player · 1,376
01,4502,900

1,350–1,399: 1,632 members (1.9%) · highlighted band is the player’s · dashed line is the target

74.8% below 1,400 (61,824 of 82,596; 73.8% below 1,376)

Percentile over time · United States

73.8% higher than · Oct 2026 · rank #21,563 of 82,596

Since Dec 2025
-0.8 pts

Dec 2025: higher than 74.6% (rank 20,558 of 81,102)Jan 2026: higher than 76.9% (rank 18,307 of 79,487)Feb 2026: higher than 81.4% (rank 15,556 of 83,940)Mar 2026: higher than 80.3% (rank 15,792 of 80,605)Apr 2026: higher than 80.6% (rank 15,647 of 80,831)May 2026: higher than 78.5% (rank 17,404 of 81,236)Jun 2026: higher than 77.2% (rank 18,919 of 83,290)Jul 2026: higher than 82% (rank 14,839 of 82,736)Aug 2026: higher than 81.9% (rank 14,924 of 83,080)Sep 2026: higher than 76.1% (rank 19,895 of 83,635)Oct 2026: higher than 73.8% (rank 21,563 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 Zhao, Serah
MonthRegularQuickBlitzOnline RegularOnline QuickOnline Blitz
Oct 20261,376-421,314no change923no change1,099no change272 Pno change · 23 games842 Pno change · 16 games
Sep 20261,418-1441,314no change923no change1,099no change272 Pno change · 23 games842 Pno change · 16 games
Aug 20261,562no change1,314no change923no change1,099no change272 Pno change · 23 games842 Pno change · 16 games
Jul 20261,562+1171,314no change923no change1,099-1272 Pno change · 23 games842 Pno change · 16 games
Jun 20261,445-451,314no change923no change1,100+1272 Pno change · 23 games842 Pno change · 16 games
May 20261,490-441,314-28923no change1,099no change272 Pno change · 23 games842 Pno change · 16 games
Apr 20261,534+31,342-57923no change1,099no change272 Pno change · 23 games842 Pno change · 16 games
Mar 20261,531-211,399+48923no change1,099no change272 Pno change · 23 games842 Pno change · 16 games
Feb 20261,552+981,351no change923no change1,099no change272 Pno change · 23 games842 Pno change · 16 games
Jan 20261,454+601,351+103923no change1,099no change272 Pno change · 23 games842 Pno change · 16 games
Dec 20251,3941,2489231,099272 P23 games842 P16 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.