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Jon A Sjogren

USA · 75 yrs · Peak 1688 (By Mar 2026)

Best performance: 1638 at 13th annual Boston Chess Congress - Premier(Best of 2025)

NOV26 Rating

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Live Rating

Unrated

Change

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Games Played

4

How live ratings are calculated

Rating History · Classical

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Official classical rating by month
ListRatingChange

Form · Classical

oldest → latest

From 13 classical games on record, the latest on Jan 5, 2025.

No standard rating: this player isn’t on the NOV26 standard list

Best wins · Classical

From 9 rated classical games against rated opponents, 2008–2025

#OpponentRating
1, FM Macon Shibut, Jan 2008 · 40th Annual Virginia Open, 2296
2, Darwin H Li, Jan 2008 · 40th Annual Virginia Open, 2040

Event timeline · Classical

3 events

Events before the current rating period show the performance, not a rating change.

Live events show the rating change; earlier events show the performance rating.

Performance rating by year

YearGamesScoreAvg oppTPR
20254½19601638
20143020571257
2008222168—

Games count in the month they were played. Each month and year is one performance rating over all of its rated games.

Live ratings projected from the NOV26 published list · Not affiliated with FIDE