Lawrence C Gilden vs Danny Kopec
75th US Open New York, NY USA round 10 1974.08.21
Sicilian Defense: Classical Variation 1/2-1/2

Danny Kopec vs Craig V Chellstorp
USA-ch Juniors Los Angeles round 1 1972.06.??
Sicilian Defense: Sozin Attack, Flank Variation 0-1

Philip Maurice Giulian vs Danny Kopec
SCO-ch Glasgow SCO round 4 1977.07.20
Colle System: Rhamphorhynchus Variation 0-1

Danny Kopec vs Alan J Norris
SCO-ch Glasgow SCO round 7 1977.07.23
Sicilian Defense: Alapin Variation, Sherzer Variation 1/2-1/2

Ian D Mullen vs Danny Kopec
SCO-ch Troon SCO round 7 1980.07.18
Sicilian Defense: Classical Variation 0-1

Louis Levy vs Danny Kopec
75th US Open New York, NY USA round 8 1974.08.19
Sicilian Defense: Alapin Variation 0-1

John A Curdo vs Danny Kopec
Salem OP Salem, NH USA 1969.??.??
Sicilian Defense: Chekhover Variation 1-0

Danny Kopec vs Alexander Vladimirovich Ivanov
Queen City op 13th Manchester round 3 1989.02.18
Sicilian Defense 1-0