Jan Sefc vs Frantisek Zita
CSR-ch Bratislava CSR round 7 1948.08.22
Caro-Kann Defense: Two Knights Attack, Mindeno Variation 0-1

Vaclav Brat vs Jan Sefc
CSR-ch Prague CSR round 1 1954.11.14
Alekhine Defense: Modern Variation, Alekhine Variation 1-0

Enrico Paoli vs Jan Sefc
Reti Memorial Trencianske Teplice CSR round 1 1949.08.??
Italian Game: Two Knights Defense 1-0

Jan Sefc vs Hans van den Broeck
13th olm qual. group 4 Munich FRG round 8 1958.10.08
French Defense: Tarrasch Variation, Guimard Defense, Main Line 1-0

Jan Sefc vs Jaromir Florian
CSR-ch Prague CSR round 2 1955.11.19
Scotch Game 0-1

Jan Sefc vs Frantisek Pithart
CSR-ch Prague CSR round 4 1954.11.17
Sicilian Defense: Najdorf Variation 1-0