Two-time defending champion Rafael Nadal defeated Stefanos Tsitsipas in the final, 6–2, 6–1 to win the singles tennis title at the 2018 Barcelona Open. Nadal did not drop a set en route to his record-extending eleventh Barcelona Open title and his 20th ATP 500 title overall, equaling Roger Federer's record. He retained the world No. 1 singles ranking with the win. It was Tsitsipas' first ATP Tour final.
Seeds All seeds received a bye into the second round.
Draw
Finals
Top half
Section 1
Section 2
Bottom half
Section 3
Section 4
Qualifying
Seeds
Qualifiers
Lucky losers
Qualifying draw
First qualifier
Second qualifier
Third qualifier
Fourth qualifier
Fifth qualifier
Sixth qualifier
References
External links Main draw Qualifying draw