USCF player statistics

Fennimore, Jameson Robert

USCF 16779364CaliforniaUpdated: Nov 2026
Official US Chess record

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Gender
Male
FIDE
FIDE 0
Floor
Regular 134 · Quick 139 · Blitz 117 · Online Regular 100
Rated games
Blitz 17 · Online Regular 16

US Chess record as of Sep 15, 2026

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Rating format

Regular rating

4570 since Oct 2026

Published rating · Nov 2026 · 12 published updates since Dec 2025

Nov 2026457 Regular
Dec 2025: 457Jan 2026: 457Feb 2026: 457Mar 2026: 457Apr 2026: 457May 2026: 457Jun 2026: 457Jul 2026: 457Aug 2026: 458Sep 2026: 457Oct 2026: 457Nov 2026: 457
Dec 2025Nov 2026
12 updates in this window · 0 first to last · open points are provisional · guides mark US Chess classes · unpublished months are skipped, not inactivity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

  • -17 Quick vs Regular

    Typical for 400–499 regular players: -1 (middle half -9 to +7, 1,654 established members). This gap is below the typical range.

  • +140 Blitz vs Regular (provisional)

    Typical for 400–499 regular players: -81 (middle half -180 to +36, 51 established members). This gap is above the typical range.

  • +99 Online Regular vs Regular (provisional)

    No national baseline for this rating band yet.

How this rating moves

Between consecutive published observations, provisional included.

Biggest gain
+1
Jul 2026 to Aug 2026
Biggest drop
-1
Aug 2026 to Sep 2026
Longest rise
1 update
+1 from Jul 2026 to Aug 2026
Current run
2 updates
Unchanged since Sep 2026
Typical move
±0
Mean absolute change; spread ±0.4

Regular rating in context

Nov 2026 update

United States

#61,028of 83,032 rated members · higher than 26.4%

21,931 lower · 74 same rating · 61,027 higher · ties share a rank

California

#7,064of 9,288 rated members · higher than 23.9%

2,220 lower · 5 same rating · 7,063 higher · ties share a rank

Where this rating sits · United States

83,032 rated members in 50-point bands · median 850–899 · 10,770 within 100 points of 457 (this player included)

Player · 457
01,4252,850

450–499: 2,670 members (3.2%) · highlighted band is the player’s · dashed line is the target

29.1% below 500 (24,225 of 83,032; 26.4% below 457)

Percentile over time · United States

26.4% higher than · Nov 2026 · rank #61,028 of 83,032

Since Dec 2025
-0.6 pts

Dec 2025: higher than 27% (rank 59,155 of 81,102)Jan 2026: higher than 26.5% (rank 58,372 of 79,487)Feb 2026: higher than 26.5% (rank 61,576 of 83,940)Mar 2026: higher than 26.3% (rank 59,306 of 80,605)Apr 2026: higher than 26.4% (rank 59,398 of 80,831)May 2026: higher than 26.4% (rank 59,708 of 81,236)Jun 2026: higher than 26.9% (rank 60,824 of 83,290)Jul 2026: higher than 27.1% (rank 60,237 of 82,736)Aug 2026: higher than 27% (rank 60,551 of 83,080)Sep 2026: higher than 26.8% (rank 61,140 of 83,635)Oct 2026: higher than 26.5% (rank 60,610 of 82,596)Nov 2026: higher than 26.4% (rank 61,028 of 83,032)
Dec 2025Nov 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 Nov 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 Fennimore, Jameson Robert
MonthRegularQuickBlitzOnline Regular
Nov 2026457no change440no change597 Pno change · 17 games556 Pno change · 16 games
Oct 2026457no change440no change597 Pno change · 17 games556 Pno change · 16 games
Sep 2026457-1440no change597 P-1 · 17 games556 Pno change · 16 games
Aug 2026458+1440no change598 P+1 · 17 games556 Pno change · 16 games
Jul 2026457no change440no change597 Pno change · 17 games556 Pno change · 16 games
Jun 2026457no change440no change597 Pno change · 17 games556 Pno change · 16 games
May 2026457no change440no change597 Pno change · 17 games556 Pno change · 16 games
Apr 2026457no change440no change597 Pno change · 17 games556 Pno change · 16 games
Mar 2026457no change440no change597 Pno change · 17 games556 Pno change · 16 games
Feb 2026457no change440no change597 Pno change · 17 games556 Pno change · 16 games
Jan 2026457no change440no change597 Pno change · 17 games556 Pno change · 16 games
Dec 2025457440597 P17 games556 P16 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.