USCF player statistics

Wei, Emma

USCF 31974794CaliforniaUpdated: Oct 2026
Official US Chess record

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Gender
Female
FIDE
FIDE 39993582
US Chess reported rank
#24,292 national · #1,437 in state
Floor
Regular 150 · Quick 150

US Chess record as of Sep 17, 2026

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Rating format

Regular rating

1,059-38 since Sep 2026

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

Oct 20261,059 Regular
Dec 2025: 943Jan 2026: 1028Feb 2026: 835Mar 2026: 1119Apr 2026: 1038May 2026: 1051Jun 2026: 1067Jul 2026: 1067Aug 2026: 1030Sep 2026: 1097Oct 2026: 1059
Dec 2025Oct 2026
11 updates in this window · +116 first to last · open points are provisional · guides mark US Chess classes · unpublished months are skipped, not inactivity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

  • -37 Quick vs Regular

    Typical for 1,000–1,099 regular players: -25 (middle half -63 to 0, 2,183 established members). This gap is within the typical range.

How this rating moves

Between consecutive published observations, provisional included.

Biggest gain
+284
Feb 2026 to Mar 2026
Biggest drop
-193
Jan 2026 to Feb 2026
Longest rise
2 updates
+29 from Apr 2026 to Jun 2026
Updates that moved
9 of 10
Latest -38, Sep 2026 to Oct 2026
Typical move
±81
Mean absolute change; spread ±123.9

Regular rating in context

Oct 2026 update

United States

#32,617of 82,596 rated members · higher than 60.4%

49,945 lower · 35 same rating · 32,616 higher · ties share a rank

California

#3,843of 9,083 rated members · higher than 57.6%

5,235 lower · 6 same rating · 3,842 higher · ties share a rank

Where this rating sits · United States

82,596 rated members in 50-point bands · median 800–849 · 7,576 within 100 points of 1,059 (this player included)

Player · 1,059
01,4502,900

1,050–1,099: 1,854 members (2.2%) · highlighted band is the player’s · dashed line is the target

62.3% below 1,100 (51,460 of 82,596; 60.4% below 1,059)

Percentile over time · United States

60.4% higher than · Oct 2026 · rank #32,617 of 82,596

Since Dec 2025
+5.1 pts

Dec 2025: higher than 55.3% (rank 36,133 of 81,102)Jan 2026: higher than 58.9% (rank 32,618 of 79,487)Feb 2026: higher than 49.4% (rank 42,379 of 83,940)Mar 2026: higher than 62.8% (rank 29,930 of 80,605)Apr 2026: higher than 59.3% (rank 32,800 of 80,831)May 2026: higher than 59.9% (rank 32,499 of 81,236)Jun 2026: higher than 61.2% (rank 32,244 of 83,290)Jul 2026: higher than 61.4% (rank 31,846 of 82,736)Aug 2026: higher than 59.6% (rank 33,452 of 83,080)Sep 2026: higher than 62.6% (rank 31,167 of 83,635)Oct 2026: higher than 60.4% (rank 32,617 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 Wei, Emma
MonthRegularQuick
Oct 20261,059-381,022no change
Sep 20261,097+671,022no change
Aug 20261,030-371,022-40
Jul 20261,067no change1,062no change
Jun 20261,067+161,062+39
May 20261,051+131,023no change
Apr 20261,038-811,023-79
Mar 20261,119+2841,102+261
Feb 2026835-193841-136
Jan 20261,028+85977+19
Dec 2025943958
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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.