USCF player statistics

Qiu, Lily

USCF 31598599PennsylvaniaUpdated: Oct 2026
Official US Chess record

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Gender
Female
US Chess reported rank
#34,159 national · #1,140 in state
Floor
Regular 150 · Quick 150

US Chess record as of Sep 16, 2026

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Rating format

Regular rating

877+44 since Sep 2026

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

Oct 2026877 Regular
Dec 2025: 391Jan 2026: 485Feb 2026: 485Mar 2026: 509Apr 2026: 644May 2026: 790Jun 2026: 784Jul 2026: 736Aug 2026: 736Sep 2026: 833Oct 2026: 877
Dec 2025Oct 2026
11 updates in this window · +486 first to last · open points are provisional · guides mark US Chess classes · unpublished months are skipped, not inactivity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

  • -15 Quick vs Regular

    Typical for 800–899 regular players: -11 (middle half -32 to +8, 2,479 established members). This gap is within the typical range.

How this rating moves

Between consecutive published observations, provisional included.

Biggest gain
+146
Apr 2026 to May 2026
Biggest drop
-48
Jun 2026 to Jul 2026
Longest rise
3 updates
+305 from Feb 2026 to May 2026
Updates that moved
8 of 10
Latest +44, Sep 2026 to Oct 2026
Typical move
±59
Mean absolute change; spread ±65.8

Regular rating in context

Oct 2026 update

United States

#39,933of 82,596 rated members · higher than 51.6%

42,625 lower · 39 same rating · 39,932 higher · ties share a rank

Pennsylvania

#1,406of 2,576 rated members · higher than 45.3%

1,167 lower · 4 same rating · 1,405 higher · ties share a rank

Where this rating sits · United States

82,596 rated members in 50-point bands · median 800–849 · 8,730 within 100 points of 877 (this player included)

Player · 877
01,4502,900

850–899: 2,136 members (2.5%) · highlighted band is the player’s · dashed line is the target

52.7% below 900 (43,576 of 82,596; 51.6% below 877)

Percentile over time · United States

51.6% higher than · Oct 2026 · rank #39,933 of 82,596

Since Dec 2025
+28.9 pts

Dec 2025: higher than 22.7% (rank 62,649 of 81,102)Jan 2026: higher than 28.2% (rank 56,946 of 79,487)Feb 2026: higher than 28.3% (rank 60,095 of 83,940)Mar 2026: higher than 29.7% (rank 56,605 of 80,605)Apr 2026: higher than 38.3% (rank 49,773 of 80,831)May 2026: higher than 46.7% (rank 43,233 of 81,236)Jun 2026: higher than 47% (rank 44,082 of 83,290)Jul 2026: higher than 44.5% (rank 45,804 of 82,736)Aug 2026: higher than 44.4% (rank 46,089 of 83,080)Sep 2026: higher than 49.7% (rank 42,020 of 83,635)Oct 2026: higher than 51.6% (rank 39,933 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 Pennsylvania 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, Lily
MonthRegularQuick
Oct 2026877+44862+43
Sep 2026833+97819+94
Aug 2026736no change725no change
Jul 2026736-48725-49
Jun 2026784-6774-10
May 2026790+146784+142
Apr 2026644+135642+151
Mar 2026509+24491+21
Feb 2026485no change470no change
Jan 2026485+94470+93
Dec 2025391377
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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.