USCF player statistics

Harwin, Jacob Flynn

USCF 16953173CaliforniaUpdated: Nov 2026
Official US Chess record

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Gender
Male
FIDE
FIDE 0
US Chess reported rank
#8,411 national · #597 in state
Floor
Regular 1,400 · Quick 150 · Blitz 1,200 · Online Regular 100 · Online Quick 100

US Chess record as of Sep 15, 2026

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Rating format

Regular rating

1,6770 since Oct 2026

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

Nov 20261,677 Regular
Dec 2025: 1464Jan 2026: 1464Feb 2026: 1464Mar 2026: 1464Apr 2026: 1464May 2026: 1464Jun 2026: 1464Jul 2026: 1677Aug 2026: 1677Sep 2026: 1677Oct 2026: 1677Nov 2026: 1677
Dec 2025Nov 2026
12 updates in this window · +213 first to last · open points are provisional · guides mark US Chess classes · unpublished months are skipped, not inactivity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

  • -506 Quick vs Regular

    Typical for 1,600–1,699 regular players: -121 (middle half -201 to -59, 2,187 established members). This gap is below the typical range.

  • -372 Blitz vs Regular

    Typical for 1,600–1,699 regular players: -212 (middle half -343 to -86, 956 established members). This gap is below the typical range.

  • -629 Online Regular vs Regular

    Typical for 1,600–1,699 regular players: -390 (middle half -582 to -194, 264 established members). This gap is below the typical range.

  • -1,085 Online Quick vs Regular

    Typical for 1,600–1,699 regular players: -324 (middle half -583 to -137, 266 established members). This gap is below the typical range.

How this rating moves

Between consecutive published observations, provisional included.

Biggest gain
+213
Jun 2026 to Jul 2026
Biggest drop
—
No drop between published updates yet
Longest rise
1 update
+213 from Jun 2026 to Jul 2026
Current run
4 updates
Unchanged since Jul 2026
Typical move
±19
Mean absolute change; spread ±64.2

Regular rating in context

Nov 2026 update

United States

#11,375of 83,032 rated members · higher than 86.2%

71,626 lower · 32 same rating · 11,374 higher · ties share a rank

California

#1,511of 9,288 rated members · higher than 83.6%

7,771 lower · 7 same rating · 1,510 higher · ties share a rank

Where this rating sits · United States

83,032 rated members in 50-point bands · median 850–899 · 6,393 within 100 points of 1,677 (this player included)

Player · 1,677
01,4252,850

1,650–1,699: 1,498 members (1.8%) · highlighted band is the player’s · dashed line is the target

87% below 1,700 (72,289 of 83,032; 86.2% below 1,677)

Percentile over time · United States

86.2% higher than · Nov 2026 · rank #11,375 of 83,032

Since Dec 2025
+8.6 pts

Dec 2025: higher than 77.6% (rank 18,104 of 81,102)Jan 2026: higher than 77.3% (rank 17,983 of 79,487)Feb 2026: higher than 77.6% (rank 18,736 of 83,940)Mar 2026: higher than 77.3% (rank 18,197 of 80,605)Apr 2026: higher than 77.5% (rank 18,108 of 80,831)May 2026: higher than 77.5% (rank 18,178 of 81,236)Jun 2026: higher than 77.9% (rank 18,308 of 83,290)Jul 2026: higher than 86.4% (rank 11,142 of 82,736)Aug 2026: higher than 86.4% (rank 11,188 of 83,080)Sep 2026: higher than 86.4% (rank 11,295 of 83,635)Oct 2026: higher than 86.2% (rank 11,319 of 82,596)Nov 2026: higher than 86.2% (rank 11,375 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 Harwin, Jacob Flynn
MonthRegularQuickBlitzOnline RegularOnline Quick
Nov 20261,677no change1,171no change1,305no change1,048no change592no change
Oct 20261,677no change1,171no change1,305-381,048no change592no change
Sep 20261,677no change1,171-11,343-11,048no change592no change
Aug 20261,677no change1,172no change1,344+11,048no change592no change
Jul 20261,677+2131,172no change1,343-661,048no change592no change
Jun 20261,464no change1,172no change1,409no change1,048no change592no change
May 20261,464no change1,172no change1,409no change1,048no change592no change
Apr 20261,464no change1,172no change1,409no change1,048no change592no change
Mar 20261,464no change1,172no change1,409no change1,048no change592no change
Feb 20261,464no change1,172no change1,409no change1,048no change592no change
Jan 20261,464no change1,172no change1,409no change1,048no change592no change
Dec 20251,4641,1721,4091,048592
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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.