Jan Bosak

CZE · 65 yrs · K=20 · Peak 2233 (Jul 2003)

Best performance: 2192 at Zlínský krajský přebor 2025/2026(Best of 2026)

World #=21871 live406#21,465 publishedCzechia #=782

OCT26 Rating

2045

Live Rating

2045.0

Change

0.0

Games Played

Rating History · Classical

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Classical games since the October list

No rated standard games this rating periodsince the OCT26 list (Oct 1, 2026)

	Last played	Score	TPR
	Valasska Bystrice 2026Sep 5 – Sep 12TPR 2131	6½/9	2131

The live rating moves only when new rated games are played. Until then it matches the published rating.

8 of 118 events · All years

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.

Valasska Bystrice 20262131
Sep 2026Swisschess-results.com
#2 in 2026Score 6½/9Opp avg 1965Start 2017
OPEN Stare Mesto 20261927
Aug 2026Swisschess-results.com
#7 in 2026Score 6/10Opp avg 1855Start 2041
CZECH OPEN 2026 - E - RAWACO RECYCLING open – in memory of Tomáš Vágner 4-member team tournament1846
Jul 2026Teamchess-results.com
#8 in 2026Score 3/5Opp avg 1774Start 2062
TEPLICE OPEN 20262011
Jun 2026Swisschess-results.com
#6 in 2026Score 3½/9Opp avg 2054Start 2078
Zlínský krajský přebor 2025/20262192
Oct 2025 – Apr 2026Teamchess-results.com
Best of 2026Score 6½/8Opp avg 1941Start 2046
Memoriál Vratislava Hory 2026 | Open A2122
Apr 2026Swisslichess
#3 in 2026Score 3/5Opp avg 2050Start 2069
2.liga E 25/26 (Veseli-MS Brno C)2104
Oct 2025 – Mar 2026Teamfederation source
#4 in 2026Score 4½/6Opp avg 1911Start 2046
MARIENBAD OPEN 2026 D - seniors tournament 50 plus2066
Jan 2026Swissfederation source
#5 in 2026Score 5½/8Opp avg 1925Start 2036

Live ratings projected from the OCT26 published list · Not affiliated with FIDE