USCF player statistics

Jamrosz, Grace Sue Ellen

USCF 16898760IndianaUpdated: Oct 2026

Official US Chess record

Gender: Female
FIDE: FIDE 0
US Chess reported rank: #60,622 national · #1,081 in state
Floor: Regular 139 · Quick 139

US Chess record as of Sep 15, 2026

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Regular rating

2910 since Sep 2026

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

Oct 2026291 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11 updates in this window · -7 first to last · open points are provisional · guides mark US Chess classes · unpublished months are skipped, not inactivity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

-3 Quick vs Regular
Typical for 200–299 regular players: 0 (middle half -3 to +6, 823 established members). This gap is within the typical range.

How this rating moves

Between consecutive published observations, provisional included.

Biggest gain: +19; Feb 2026 to Mar 2026
Biggest drop: -27; Apr 2026 to May 2026
Longest rise: 2 updates; +20 from Feb 2026 to Apr 2026
Current run: 5 updates; Unchanged since May 2026
Typical move: ±5; Mean absolute change; spread ±11

Regular rating in context

Oct 2026 update

United States

#69,368of 82,596 rated members · higher than 15.9%

13,174 lower · 55 same rating · 69,367 higher · ties share a rank

Indiana

#1,253of 1,482 rated members · higher than 15.1%

225 lower · 5 same rating · 1,252 higher · ties share a rank

Where this rating sits · United States

82,596 rated members in 50-point bands · median 800–849 · 10,053 within 100 points of 291 (this player included)

Player · 291

01,4502,900

250–299: 2,470 members (2.9%) · highlighted band is the player’s · dashed line is the target

Target 300

16.4% below 300 (13,612 of 82,596; 15.9% below 291)

Percentile over time · United States

15.9% higher than · Oct 2026 · rank #69,368 of 82,596

Since Dec 2025
-0.8 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 Indiana 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 Jamrosz, Grace Sue Ellen
Month	Regular	Quick
Oct 2026	291no change	288no change
Sep 2026	291no change	288no change
Aug 2026	291no change	288no change
Jul 2026	291no change	288no change
Jun 2026	291no change	288no change
May 2026	291-27	288-28
Apr 2026	318+1	316+2
Mar 2026	317+19	314+17
Feb 2026	298no change	297no change
Jan 2026	298no change	297no change
Dec 2025	298	297

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