USCF player statistics

Qiu, Sarah

USCF 30157362ArizonaUpdated: Oct 2026
Official US Chess record

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Gender
Female
FIDE
FIDE 39948781
US Chess reported rank
#9,724 national · #220 in state
Floor
Regular 1,500 · Quick 1,400 · Online Quick 100
Rated games
Online Quick 15

US Chess record as of Sep 15, 2026

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Rating format

Regular rating

1,711+93 since Sep 2026

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

Oct 20261,711 Regular
Dec 2025: 1431Jan 2026: 1392Feb 2026: 1360Mar 2026: 1441Apr 2026: 1555May 2026: 1574Jun 2026: 1650Jul 2026: 1650Aug 2026: 1650Sep 2026: 1618Oct 2026: 1711
Dec 2025Oct 2026
11 updates in this window · +280 first to last · open points are provisional · guides mark US Chess classes · unpublished months are skipped, not inactivity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

  • -53 Quick vs Regular

    Typical for 1,700–1,799 regular players: -124 (middle half -209 to -70, 1,897 established members). This gap is above the typical range.

  • -764 Online Quick vs Regular (provisional)

    Typical for 1,700–1,799 regular players: -389 (middle half -608 to -163, 262 established members). This gap is below the typical range.

How this rating moves

Between consecutive published observations, provisional included.

Biggest gain
+114
Mar 2026 to Apr 2026
Biggest drop
-39
Dec 2025 to Jan 2026
Longest rise
4 updates
+290 from Feb 2026 to Jun 2026
Updates that moved
8 of 10
Latest +93, Sep 2026 to Oct 2026
Typical move
±49
Mean absolute change; spread ±57.8

Regular rating in context

Oct 2026 update

United States

#10,111of 82,596 rated members · higher than 87.7%

72,457 lower · 29 same rating · 10,110 higher · ties share a rank

Arizona

#249of 1,672 rated members · higher than 85%

1,422 lower · 2 same rating · 248 higher · ties share a rank

Where this rating sits · United States

82,596 rated members in 50-point bands · median 800–849 · 6,167 within 100 points of 1,711 (this player included)

Player · 1,711
01,4502,900

1,700–1,749: 1,661 members (2%) · highlighted band is the player’s · dashed line is the target

89% below 1,750 (73,557 of 82,596; 87.7% below 1,711)

Percentile over time · United States

87.7% higher than · Oct 2026 · rank #10,111 of 82,596

Since Dec 2025
+11.4 pts

Dec 2025: higher than 76.3% (rank 19,170 of 81,102)Jan 2026: higher than 74.1% (rank 20,489 of 79,487)Feb 2026: higher than 73.3% (rank 22,375 of 83,940)Mar 2026: higher than 76.4% (rank 18,947 of 80,605)Apr 2026: higher than 81.4% (rank 15,000 of 80,831)May 2026: higher than 82.1% (rank 14,487 of 81,236)Jun 2026: higher than 85.5% (rank 11,996 of 83,290)Jul 2026: higher than 85.5% (rank 11,924 of 82,736)Aug 2026: higher than 85.5% (rank 11,970 of 83,080)Sep 2026: higher than 84.3% (rank 13,081 of 83,635)Oct 2026: higher than 87.7% (rank 10,111 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 Arizona 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 Qiu, Sarah
MonthRegularQuickOnline Quick
Oct 20261,711+931,658+89947 Pno change · 15 games
Sep 20261,618-321,569-35947 Pno change · 15 games
Aug 20261,650no change1,604no change947 Pno change · 15 games
Jul 20261,650no change1,604no change947 Pno change · 15 games
Jun 20261,650+761,604+92947 Pno change · 15 games
May 20261,574+191,512+17947 Pno change · 15 games
Apr 20261,555+1141,495+106947 Pno change · 15 games
Mar 20261,441+811,389+115947 Pno change · 15 games
Feb 20261,360-321,274-39947 Pno change · 15 games
Jan 20261,392-391,313-41947 Pno change · 15 games
Dec 20251,4311,354947 P15 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.