USCF player statistics

Detwiler, John Marshall

USCF 32473409DelawareUpdated: Oct 2026

Official US Chess record

Gender: Male
FIDE: FIDE 39998096
US Chess reported rank: #9,021 national · #32 in state
Floor: Regular 1,400 · Quick 138 · Blitz 115 · Online Regular 100 · Online Quick 1,300 · Online Blitz 1,600
Rated games: Quick 19 · Blitz 5 · Online Regular 25

US Chess record as of Sep 17, 2026

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Regular rating

1,665+16 since Sep 2026

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

Oct 20261,665 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11 updates in this window · open points are provisional · guides mark US Chess classes · unpublished months are skipped, not inactivity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

-291 Quick vs Regular (provisional)
Typical for 1,600–1,699 regular players: -119 (middle half -202 to -59, 2,135 established members). This gap is below the typical range.
-359 Blitz vs Regular (provisional)
Typical for 1,600–1,699 regular players: -208 (middle half -334 to -84, 934 established members). This gap is below the typical range.
-253 Online Regular vs Regular
Typical for 1,600–1,699 regular players: -360 (middle half -572 to -180, 262 established members). This gap is within the typical range.
-147 Online Quick vs Regular
Typical for 1,600–1,699 regular players: -337 (middle half -560 to -149, 270 established members). This gap is above the typical range.
+89 Online Blitz vs Regular
Typical for 1,600–1,699 regular players: -74 (middle half -194 to +59, 222 established members). This gap is above the typical range.

How this rating moves

Between consecutive published observations, provisional included.

Biggest gain: +94; Aug 2026 to Sep 2026
Biggest drop: -30; Dec 2025 to Jan 2026
Longest rise: 4 updates; +149 from Jun 2026 to Oct 2026
Updates that moved: 6 of 10; Latest +16, Sep 2026 to Oct 2026
Typical move: ±25; Mean absolute change; spread ±37.8

Regular rating in context

Oct 2026 update

United States

#11,668of 82,596 rated members · higher than 85.8%

70,902 lower · 27 same rating · 11,667 higher · ties share a rank

Delaware

#40of 222 rated members · higher than 81.9%

182 lower · 1 same rating · 39 higher · ties share a rank

Where this rating sits · United States

82,596 rated members in 50-point bands · median 800–849 · 6,444 within 100 points of 1,665 (this player included)

Player · 1,665

01,4502,900

1,650–1,699: 1,463 members (1.7%) · highlighted band is the player’s · dashed line is the target

Target 1,700

87% below 1,700 (71,896 of 82,596; 85.8% below 1,665)

Percentile over time · United States

85.8% higher than · Oct 2026 · rank #11,668 of 82,596

Since Dec 2025
+7.9 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 Delaware 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 Detwiler, John Marshall
Month	Regular	Quick	Blitz	Online Regular	Online Quick	Online Blitz
Oct 2026	1,665+16	1,374 Pno change · 19 games	1,306 Pno change · 5 games	1,412no change	1,518no change	1,754-19
Sep 2026	1,649+94	1,374 Pno change · 19 games	1,306 Pno change · 5 games	1,412-19	1,518-22	1,773+61
Aug 2026	1,555+9	1,374 Pno change · 19 games	1,306 Pno change · 5 games	1,431 P-3 · 23 games	1,540+46	1,712+25
Jul 2026	1,546+30	1,374 P+20 · 19 games	1,306 Pno change · 5 games	1,434 P+4 · 17 games	1,494+31	1,687-26
Jun 2026	1,516no change	1,354 Pno change · 16 games	1,306 Pno change · 5 games	1,430 Pno change · 16 games	1,463-1	1,713-47
May 2026	1,516no change	1,354 Pno change · 16 games	1,306 Pno change · 5 games	1,430 Pno change · 16 games	1,464no change	1,760+14
Apr 2026	1,516+75	1,354 Pno change · 16 games	1,306 Pno change · 5 games	1,430 Pno change · 16 games	1,464-37	1,746-11
Mar 2026	1,441 Pno change · 24 games	1,354 Pno change · 16 games	1,306 Pno change · 5 games	1,430 Pno change · 16 games	1,501no change	1,757+16
Feb 2026	1,441 Pno change · 24 games	1,354 Pno change · 16 games	1,306 Pno change · 5 games	1,430 Pno change · 16 games	1,501+139	1,741-32
Jan 2026	1,441 P-30 · 24 games	1,354 Pno change · 16 games	1,306 Pno change · 5 games	1,430 P16 games	1,362 P-12 · 17 games	1,773-10
Dec 2025	1,471 P24 games	1,354 P16 games	1,306 P5 games	—	1,374 P13 games	1,783

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