USCF player statistics

Calvin, Jamie Duif

USCF 10123640CaliforniaUpdated: Oct 2026

Official US Chess record

Gender: Female
FIDE: FIDE 566014158
TD: N
US Chess reported rank: #10,176 national · #620 in state
Floor: Regular 1,600 · Quick 1,400

US Chess record as of Sep 14, 2026

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Regular rating

1,6000 since Sep 2026

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

Oct 20261,600 Regular

Compare format

Dec 2025Oct 2026

11 updates in this window · open points are provisional · guides mark US Chess classes · unpublished months are skipped, not inactivity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

+15 Quick vs Regular
Typical for 1,600–1,699 regular players: -119 (middle half -202 to -59, 2,135 established members). This gap is above the typical range.

How this rating moves

Between consecutive published observations, provisional included.

Biggest gain: —; No gain between published updates yet
Biggest drop: -83; Jun 2026 to Jul 2026
Longest rise: —; No consecutive gains yet
Current run: 3 updates; Unchanged since Jul 2026
Typical move: ±15; Mean absolute change; spread ±31.1

Regular rating in context

Oct 2026 update

United States

#13,759of 82,596 rated members · higher than 83%

68,582 lower · 256 same rating · 13,758 higher · ties share a rank

California

#1,793of 9,083 rated members · higher than 79.8%

7,256 lower · 35 same rating · 1,792 higher · ties share a rank

Where this rating sits · United States

82,596 rated members in 50-point bands · median 800–849 · 6,945 within 100 points of 1,600 (this player included)

Player · 1,600

01,4502,900

1,600–1,649: 1,851 members (2.2%) · highlighted band is the player’s · dashed line is the target

Target 1,650

85.2% below 1,650 (70,433 of 82,596; 83% below 1,600)

Percentile over time · United States

83% higher than · Oct 2026 · rank #13,759 of 82,596

Since Dec 2025
-5.8 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 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 Calvin, Jamie Duif
Month	Regular	Quick
Oct 2026	1,600no change	1,615no change
Sep 2026	1,600no change	1,615no change
Aug 2026	1,600no change	1,615no change
Jul 2026	1,600-83	1,615no change
Jun 2026	1,683no change	1,615no change
May 2026	1,683no change	1,615no change
Apr 2026	1,683-63	1,615-88
Mar 2026	1,746 Pno change · 22 games	1,703 Pno change · 21 games
Feb 2026	1,746 Pno change · 22 games	1,703 Pno change · 21 games
Jan 2026	1,746 Pno change · 22 games	1,703 Pno change · 21 games
Dec 2025	1,746 P22 games	1,703 P21 games

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