USCF player statistics

Ostrem, Tiberius

USCF 33071159CaliforniaLatest available supplement: Sep 2026
Official US Chess record
Rating format

Regular rating

774

Provisional rating

450650850May 2026: 522 (provisional)Jun 2026: 704 (provisional)Jul 2026: 617 (provisional)Aug 2026: 774 (provisional)Sep 2026: 774 (provisional)May 2026Sep 2026
Published supplement ratings. Lines connect available observations; they do not show individual tournament results.

Regular rating in context

United States

#44,735

Among 83,635 rated members; tied ratings share a rank.

Higher than 46.4% of ratings in this population.

California

#5,140

Among 9,051 rated members; tied ratings share a rank.

Higher than 43.1% of ratings in this population.

Calculated from the Sep 2026 supplement, using the same population as Chess67’s USCF statistics: US members classified as active by the supplement rules, excluding lifetime-coded records. Includes provisional ratings. These are Chess67 calculations, not official US Chess rankings.

Published ratings by supplement

All available formats. P indicates a provisional rating.

Monthly USCF ratings for Ostrem, Tiberius
SupplementRegularQuickBlitz
Sep 2026774 P764 P841 P
Aug 2026774 P764 P841 P
Jul 2026617 P606 P—
Jun 2026704 P697 P—
May 2026522 P514 P—

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About these statistics

These pages use the USCF supplements available to Chess67. Ratings can change between monthly publications. Missing months do not mean a player was inactive. For current ratings and tournament history, consult the official US Chess record.

National USCF statisticsCalifornia USCF statistics