Parties de Halfdanarson, Jon

• Halfdanarson,+Jon vs Olafsson,+Fridrik Reykjavik 1966. . 0-1
• Halfdanarson,+Jon vs Olafsson,+Fridrik ISL-ch 1969. . 1-2-1-2
• Halfdanarson,+Jon vs Soltis,+Andrew+E WchT+U26 1967. . 0-1