Sejer Holm Petersen vs Palle Moeller Nielsen
Nimzowitsch Memorial Copenhagen DEN 1960.08.??
English Rat: Pounds Gambit 0-1

Martin Johansson Sr vs Sejer Holm Petersen
Varna ol (Men) fin-B Varna BUL round 8 1962.10.05
Sicilian Defense: Richter-Rauzer Variation, Neo-Modern Variation, Nyezhmetdinov Attack 1-0

Sejer Holm Petersen vs Constant Orbaan
Nimzowitsch Memorial Copenhagen DEN 1960.08.??
Old Indian Defense: Dus-Khotimirsky Variation 0-1

Sejer Holm Petersen vs Jan Balje
Groningen Chess Festival Groningen NED round 8 2009.12.29
English Opening: Anglo-Indian Defense 1-0