USCF player statistics

Mazumdar, Ranbir

USCF 16646978CaliforniaUpdated: Nov 2026

US Chess membership expired on January 31, 2026. Published rating history is still shown below.

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Rating format

Online Regular rating

941

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

Nov 2026941 provisional
Dec 2025: 942 provisionalJan 2026: 942 provisionalFeb 2026: 941 provisionalMar 2026: 942 provisionalApr 2026: 942 provisionalMay 2026: 942 provisionalJun 2026: 942 provisionalJul 2026: 942 provisionalAug 2026: 942 provisionalSep 2026: 942 provisionalOct 2026: 942 provisionalNov 2026: 941 provisional
Dec 2025Nov 2026
12 updates in this window · open points are provisional · guides mark US Chess classes · unpublished months are skipped, not inactivity

How this rating moves

Between consecutive published observations, provisional included.

Biggest gain
+1
Feb 2026 to Mar 2026
Biggest drop
-1
Jan 2026 to Feb 2026
Longest rise
1 update
+1 from Feb 2026 to Mar 2026
Updates that moved
3 of 11
Latest -1, Oct 2026 to Nov 2026
Typical move
±0
Mean absolute change; spread ±0.5

Published ratings by month

P marks a provisional rating; the small figure is the change since the previous published observation.

Monthly USCF ratings for Mazumdar, Ranbir
MonthOnline Regular
Nov 2026941 P-1 · 4 games
Oct 2026942 Pno change · 4 games
Sep 2026942 Pno change · 4 games
Aug 2026942 Pno change · 4 games
Jul 2026942 Pno change · 4 games
Jun 2026942 Pno change · 4 games
May 2026942 Pno change · 4 games
Apr 2026942 Pno change · 4 games
Mar 2026942 P+1 · 4 games
Feb 2026941 P-1 · 4 games
Jan 2026942 Pno change · 4 games
Dec 2025942 P4 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.