[1] Ivkov made his Bulgaria debut in 1968, earning 44 caps and scoring one goal over an eleven-year international career.

Ivkov captained his country 10 times and played in the 1974 FIFA World Cup.

[3] Born in Pernik, Ivkov began his career at local club Metalurg.

He spent eleven years at Levski, scoring 15 goals in 375 appearances in all competitions.

This biographical article related to association football in Bulgaria, about a defender, is a stub.