USCF player statistics

Corey Ramirez, Sebastian

USCF 32438959Latest monthly rating update: Sep 2026
Official US Chess record
Rating format

Regular rating

1,630

Provisional rating · Sep 2026 · 10 published updates since Dec 2025

Sep 20261,630 provisional
Dec 2025: 1451 provisionalJan 2026: 1451 provisionalFeb 2026: 1451 provisionalMar 2026: 1451 provisionalApr 2026: 1451 provisionalMay 2026: 1451 provisionalJun 2026: 1451 provisionalJul 2026: 1604 provisionalAug 2026: 1602 provisionalSep 2026: 1630 provisional
Dec 2025Sep 2026
10 updates in this window · open points are provisional · guides mark US Chess classes · unpublished months are skipped, not inactivity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

  • -97 Quick vs Regular (provisional)

    No national baseline for this rating band yet.

How this rating moves

Between consecutive published observations, provisional included.

Biggest gain
+153
Jun 2026 to Jul 2026
Biggest drop
-2
Jul 2026 to Aug 2026
Longest rise
1 update
+153 from Jun 2026 to Jul 2026
Updates that moved
3 of 9
Latest +28, Aug 2026 to Sep 2026
Typical move
±20
Mean absolute change; spread ±50.8

Regular rating in context

Sep 2026 update

United States

84.7%of the comparison population has a lower rating.

70,883 lower · 26 same rating · 12,726 higher

Where this rating sits · United States

83,635 rated members in 50-point bands · median 800–849 · 6,582 within 100 points of 1,630

Player · 1,630
01,4502,900

1,6001,649: 1,832 members (2.1%) · highlighted band is the player’s · dashed line is the target

85.5% below 1,650 (71,512 of 83,635; 84.7% below 1,630)

How these comparisons are calculated

Chess67 calculations from the Sep 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: it is a rating comparison, not a prediction of future rank. This player is outside that comparison population; no membership rank is assigned.

United States 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 Corey Ramirez, Sebastian
MonthRegularQuick
Sep 20261,630 P+28 · 19 games1,533 P+19 · 19 games
Aug 20261,602 P-2 · 15 games1,514 P-1 · 15 games
Jul 20261,604 P+153 · 15 games1,515 P+133 · 15 games
Jun 20261,451 Pno change · 11 games1,382 P-1 · 11 games
May 20261,451 Pno change · 11 games1,383 Pno change · 11 games
Apr 20261,451 Pno change · 11 games1,383 Pno change · 11 games
Mar 20261,451 Pno change · 11 games1,383 Pno change · 11 games
Feb 20261,451 Pno change · 11 games1,383 Pno change · 11 games
Jan 20261,451 Pno change · 11 games1,383 Pno change · 11 games
Dec 20251,451 P11 games1,383 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.