Krefenstein, Sergej

FIDE ID 12922072

Games

Wins

Draws

Losses

42%

Score

Peak rating2051

Latest rating2051

First seenApr 19, 2025

Last seenApr 12, 2026

Recent games

Date	White	Result	Black	Event	Opening
Apr 12, 2026	Krefenstein	0–1	Piz	Round 9: Krefenstein, Sergej - Piz, Maxim, Dr.	King's Indian Defense: Orthodox Variation, Classical System
Apr 11, 2026	Krefenstein	½–½	Thuemler	Round 8: Krefenstein, Sergej - Thuemler, Floris	Queen's Gambit Declined: Semi-Slav, Abrahams Variation
Apr 10, 2026	Dimitrijeski	1–0	Krefenstein	Round 7: Dimitrijeski, Kristian - Krefenstein, Sergej	Queen's Gambit Declined: Ragozin Defense
Apr 9, 2026	Krefenstein	½–½	Noll	Round 6: Krefenstein, Sergej - Noll, Paul	Queen's Gambit Declined: Harrwitz Attack, Main Line
Apr 8, 2026	Gelman	0–1	Krefenstein	Round 5: Gelman, Josef - Krefenstein, Sergej	Zukertort Opening: Dutch Variation
Apr 7, 2026	Krefenstein	0–1	Niehaus	Round 4: Krefenstein, Sergej - Niehaus, Frank	King's Indian Defense: Orthodox Variation, Classical System, Benko Attack
Apr 6, 2026	Brustkern	½–½	Krefenstein	Round 3: Brustkern, Juergen - Krefenstein, Sergej	Scotch Game: Scotch Gambit, Göring Gambit Declined
Apr 5, 2026	Schliebener	1–0	Krefenstein	Round 2: Schliebener, Stephan - Krefenstein, Sergej	Nimzo-Indian Defense: Classical Variation, Noa Variation
Apr 4, 2026	Krefenstein	½–½	Foerster	Round 1: Krefenstein, Sergej - Foerster, Jonas	King's Indian Defense: Orthodox Variation, Gligoric-Taimanov System
Dec 29, 2025	Krefenstein	0–1	Foerster	Round 6: Krefenstein, Sergej - Foerster, Jonas	Nimzo-Indian Defense: Sämisch Variation
Dec 28, 2025	Krefenstein	½–½	Wichmann	Round 4: Krefenstein, Sergej - Wichmann, Cliff	Nimzo-Indian Defense: Kmoch Variation
Nov 2, 2025	Simcaks	0–1	Krefenstein	Round 6: Simcaks, Sergejs - Krefenstein, Sergej	Sicilian Defense: Sozin Attack
Nov 1, 2025	Krefenstein	1–0	Litvinov	Round 5: Krefenstein, Sergej - Litvinov, Ivan	Benko Gambit Declined: Main Line
Oct 31, 2025	Krefenstein	0–1	Guder	Round 2: Krefenstein, Sergej - Guder, Sibylle	King's Indian Defense: Semi-Averbakh System
Oct 31, 2025	Kohlmeyer	0–1	Krefenstein	Round 1: Kohlmeyer, Dagobert - Krefenstein, Sergej	Sicilian Defense: Scheveningen Variation, Classical Variation
Oct 31, 2025	Krefenstein	½–½	Strache	Round 7: Krefenstein, Sergej - Strache, Michael	Horwitz Defense
Apr 27, 2025	Krefenstein	0–1	Jahnz	Round 9: Krefenstein, Sergej - Jahnz, Fabian	Sicilian Defense: Nyezhmetdinov-Rossolimo Attack
Apr 26, 2025	Heerde	½–½	Krefenstein	Round 8: Heerde, Thomas - Krefenstein, Sergej	French Defense: King's Indian Attack
Apr 25, 2025	Klenburg	1–0	Krefenstein	Round 7: Klenburg, Michael - Krefenstein, Sergej	King's Indian Attack: Keres Variation
Apr 24, 2025	Krefenstein	1–0	Nogly	Round 6: Krefenstein, Sergej - Nogly, Christoph	Ruy Lopez: Morphy Defense, Steinitz Deferred
Apr 23, 2025	Krefenstein	½–½	Niehaus	Round 5: Krefenstein, Sergej - Niehaus, Frank	Sicilian Defense: Dragon Variation, Yugoslav Attack, Early Deviations
Apr 22, 2025	Noeldner	½–½	Krefenstein	Round 4: Noeldner, Julian - Krefenstein, Sergej	French Defense: Advance Variation, Main Line
Apr 21, 2025	Kreutz	½–½	Krefenstein	Round 3: Kreutz, Jonas - Krefenstein, Sergej	French Defense: Advance Variation, Main Line
Apr 20, 2025	Krefenstein	1–0	Brustkern	Round 2: Krefenstein, Sergej - Brustkern, Juergen	Sicilian Defense: Dragon Variation, Yugoslav Attack
Apr 19, 2025	Krefenstein	0–1	Matviienko	Round 1: Krefenstein, Sergej - Matviienko, Mykhailo	French Defense: Advance Variation, Main Line
—	Rodriguez Klasen	1–0	Krefenstein	Round 9: Rodriguez Klasen, Ennio - Krefenstein, Sergej	Ruy Lopez: Morphy Defense, Classical Defense Deferred