Mark Biernacki

USA · 29 yrs · K=20 · Peak 2039 (Oct 2026)

Best performance: 2200 at Summer Prague Open 2026 - A(Best of 2026)

World #=22270 live86#22,184 publishedUnited States #=641

OCT26 Rating

2039

Live Rating

2039.0

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
	XXVII Open Internacional de Sants - Ciutat de Barcelona - Grup AAug 21 – Aug 30TPR 2060	4½/10	2060

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

7 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.

XXVII Open Internacional de Sants - Ciutat de Barcelona - Grup A2060
Aug 2026Swisschess-results.com
#2 in 2026Score 4½/10Opp avg 2096Start 1958
Summer Prague Open 2026 - A2200
Aug 2026Swisschess-results.com
Best of 2026Score 5½/9Opp avg 2120Start 1958
Tuesday Night Action — Top—(2)
Jul 2026Swissfederation source
Score 0/2Opp avg 1950Start 1974
Sunday Afternoon Classical — Top—(1)
Jul 2026Swissfederation source
Score 1/1Opp avg 1798Start 1974
CCC Tuesday Night Action 125—(1)
Nov 2025Swissfederation source
Score 0/1Opp avg 2240Start 1978
Reverse Angle 133—(2)
Sep 2024Swissfederation source
Score 1/2Opp avg 1783Start 1989
Reverse Angle 125—(1)
Oct 2023Swissfederation source
Score 0/1Opp avg 1860Start 1995

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