USCF player statistics

Backstrom, Tilly

USCF 30563605IdahoUpdated: Oct 2026

Official US Chess record

Gender: Female
FIDE: FIDE 39924777
US Chess reported rank: #11,493 national · #37 in state
Floor: Regular 1,300 · Quick 1,200 · Blitz 148

US Chess record as of Mar 19, 2026

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Regular rating

1,5260 since Sep 2026

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

Oct 20261,526 Regular

Compare format

Dec 2025Oct 2026

11 updates in this window · -7 first to last · open points are provisional · guides mark US Chess classes · unpublished months are skipped, not inactivity

Compare with another playerOverlays their published ratings on the chart; the link keeps the comparison.

Other formats against Regular

-132 Quick vs Regular
Typical for 1,500–1,599 regular players: -106 (middle half -187 to -48, 2,101 established members). This gap is within the typical range.
-193 Blitz vs Regular
Typical for 1,500–1,599 regular players: -190 (middle half -311 to -68, 798 established members). This gap is within the typical range.

How this rating moves

Between consecutive published observations, provisional included.

Biggest gain: +9; Aug 2026 to Sep 2026
Biggest drop: -16; May 2026 to Jun 2026
Longest rise: 1 update; +9 from Aug 2026 to Sep 2026
Current run: 1 update; Unchanged since Sep 2026
Typical move: ±3; Mean absolute change; spread ±6.1

Regular rating in context

Oct 2026 update

United States

#16,244of 82,596 rated members · higher than 80.2%

66,322 lower · 31 same rating · 16,243 higher · ties share a rank

Idaho

#62of 266 rated members · higher than 76.6%

204 lower · 1 same rating · 61 higher · ties share a rank

Where this rating sits · United States

82,596 rated members in 50-point bands · median 800–849 · 6,852 within 100 points of 1,526 (this player included)

Player · 1,526

01,4502,900

1,500–1,549: 1,907 members (2.3%) · highlighted band is the player’s · dashed line is the target

Target 1,550

81.2% below 1,550 (67,094 of 82,596; 80.2% below 1,526)

Percentile over time · United States

80.2% higher than · Oct 2026 · rank #16,244 of 82,596

Since Dec 2025
-0.4 pts

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 Idaho 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 Backstrom, Tilly
Month	Regular	Quick	Blitz
Oct 2026	1,526no change	1,394no change	1,333no change
Sep 2026	1,526+9	1,394+9	1,333+20
Aug 2026	1,517no change	1,385no change	1,313no change
Jul 2026	1,517no change	1,385no change	1,313no change
Jun 2026	1,517-16	1,385-16	1,313no change
May 2026	1,533no change	1,401no change	1,313no change
Apr 2026	1,533no change	1,401no change	1,313no change
Mar 2026	1,533no change	1,401no change	1,313no change
Feb 2026	1,533no change	1,401no change	1,313no change
Jan 2026	1,533no change	1,401no change	1,313no change
Dec 2025	1,533	1,401	1,313

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