USCF player statistics

Mertzlufft, Charles Ralph

USCF 33126542MissouriUpdated: Nov 2026
Official US Chess record

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Gender
Male
US Chess reported rank
#37,238 national · #621 in state
Floor
Regular 150 · Quick 150
Rated games
Regular 23 · Quick 23

US Chess record as of Sep 18, 2026

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Rating format

Regular rating

691+10 since Oct 2026

Published rating · Nov 2026 · 6 published updates since Jun 2026

Nov 2026691 Regular
Jun 2026: 254 provisionalJul 2026: 254 provisionalAug 2026: 472 provisionalSep 2026: 762 provisionalOct 2026: 681Nov 2026: 691
Jun 2026Nov 2026
6 updates in this window · open points are provisional · guides mark US Chess classes · unpublished months are skipped, not inactivity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

  • +7 Quick vs Regular

    Typical for 600–699 regular players: -4 (middle half -16 to +11, 2,305 established members). This gap is within the typical range.

How this rating moves

Between consecutive published observations, provisional included.

Biggest gain
+290
Aug 2026 to Sep 2026
Biggest drop
-81
Sep 2026 to Oct 2026
Longest rise
2 updates
+508 from Jul 2026 to Sep 2026
Updates that moved
4 of 5
Latest +10, Oct 2026 to Nov 2026
Typical move
±120
Mean absolute change; spread ±158.2

Regular rating in context

Nov 2026 update

United States

#48,930of 83,032 rated members · higher than 41%

34,045 lower · 58 same rating · 48,929 higher · ties share a rank

Missouri

#835of 1,317 rated members · higher than 36.5%

481 lower · 2 same rating · 834 higher · ties share a rank

Where this rating sits · United States

83,032 rated members in 50-point bands · median 850–899 · 9,834 within 100 points of 691 (this player included)

Player · 691
01,4252,850

650–699: 2,420 members (2.9%) · highlighted band is the player’s · dashed line is the target

41.5% below 700 (34,508 of 83,032; 41% below 691)

Percentile over time · United States

41% higher than · Nov 2026 · rank #48,930 of 83,032

Since Jun 2026
+27.1 pts

Jun 2026: higher than 13.9% (rank 71,588 of 83,290)Jul 2026: higher than 14% (rank 71,043 of 82,736)Aug 2026: higher than 27.9% (rank 59,829 of 83,080)Sep 2026: higher than 45.7% (rank 45,297 of 83,635)Oct 2026: higher than 40.6% (rank 48,991 of 82,596)Nov 2026: higher than 41% (rank 48,930 of 83,032)
Jun 2026Nov 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 Missouri 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 Mertzlufft, Charles Ralph
MonthRegularQuick
Nov 2026691+10698+10
Oct 2026681-81688-79
Sep 2026762 P+290 · 23 games767 P+288 · 23 games
Aug 2026472 P+218 · 13 games479 P+218 · 13 games
Jul 2026254 Pno change · 5 games261 Pno change · 5 games
Jun 2026254 P5 games261 P5 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.