USCF player statistics

Chirchir, Jacob

USCF 30995919WyomingUpdated: Nov 2026
Official US Chess record

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Gender
Male
FIDE
FIDE 0
US Chess reported rank
#58,275 national · #67 in state
Floor
Regular 127 · Quick 109
Rated games
Regular 17 · Quick 13

US Chess record as of Sep 16, 2026

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Rating format

Regular rating

438

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

Nov 2026438 provisional
Dec 2025: 363 provisionalJan 2026: 363 provisionalFeb 2026: 363 provisionalMar 2026: 338 provisionalApr 2026: 338 provisionalMay 2026: 338 provisionalJun 2026: 338 provisionalJul 2026: 338 provisionalAug 2026: 338 provisionalSep 2026: 338 provisionalOct 2026: 338 provisionalNov 2026: 438 provisional
Dec 2025Nov 2026
12 updates in this window · open points are provisional · guides mark US Chess classes · unpublished months are skipped, not inactivity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

  • -109 Quick vs Regular (provisional)

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

How this rating moves

Between consecutive published observations, provisional included.

Biggest gain
+100
Oct 2026 to Nov 2026
Biggest drop
-25
Feb 2026 to Mar 2026
Longest rise
1 update
+100 from Oct 2026 to Nov 2026
Updates that moved
2 of 11
Latest +100, Oct 2026 to Nov 2026
Typical move
±11
Mean absolute change; spread ±31.8

Regular rating in context

Nov 2026 update

United States

#62,072of 83,032 rated members · higher than 25.1%

20,903 lower · 58 same rating · 62,071 higher · ties share a rank

Wyoming

#75of 113 rated members · higher than 33.6%

38 lower · 1 same rating · 74 higher · ties share a rank

Where this rating sits · United States

83,032 rated members in 50-point bands · median 850–899 · 10,797 within 100 points of 438 (this player included)

Player · 438
01,4252,850

400–449: 2,739 members (3.2%) · highlighted band is the player’s · dashed line is the target

25.9% below 450 (21,555 of 83,032; 25.1% below 438)

Percentile over time · United States

25.1% higher than · Nov 2026 · rank #62,072 of 83,032

Since Dec 2025
+4.3 pts

Dec 2025: higher than 20.8% (rank 64,117 of 81,102)Jan 2026: higher than 20.3% (rank 63,233 of 79,487)Feb 2026: higher than 20.5% (rank 66,674 of 83,940)Mar 2026: higher than 18.8% (rank 65,359 of 80,605)Apr 2026: higher than 18.8% (rank 65,535 of 80,831)May 2026: higher than 18.8% (rank 65,906 of 81,236)Jun 2026: higher than 19.2% (rank 67,222 of 83,290)Jul 2026: higher than 19.3% (rank 66,678 of 82,736)Aug 2026: higher than 19.1% (rank 67,087 of 83,080)Sep 2026: higher than 19% (rank 67,630 of 83,635)Oct 2026: higher than 18.8% (rank 67,021 of 82,596)Nov 2026: higher than 25.1% (rank 62,072 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 Wyoming 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 Chirchir, Jacob
MonthRegularQuick
Nov 2026438 P+100 · 21 games329 Pno change · 13 games
Oct 2026338 Pno change · 17 games329 Pno change · 13 games
Sep 2026338 Pno change · 17 games329 Pno change · 13 games
Aug 2026338 Pno change · 17 games329 Pno change · 13 games
Jul 2026338 Pno change · 17 games329 Pno change · 13 games
Jun 2026338 Pno change · 17 games329 Pno change · 13 games
May 2026338 Pno change · 17 games329 Pno change · 13 games
Apr 2026338 Pno change · 17 games329 Pno change · 13 games
Mar 2026338 P-25 · 17 games329 P13 games
Feb 2026363 Pno change · 17 games—
Jan 2026363 Pno change · 11 games—
Dec 2025363 P11 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.