1998 U.S. Men's Clay Court Championships – Singles

Seeds
A champion seed is indicated in bold text while text in italics indicates the round in which that seed was eliminated.

• # 🇺🇸 Michael Chang (final)

• # 🇦🇺 Jason Stoltenberg (first round)

• # 🇺🇸 Jim Courier (champion)

• # 🇺🇸 Vincent Spadea (first round)

• # 🇮🇹 Gianluca Pozzi (second round)

• # Wayne Black (first round)

• # Grant Stafford (second round)

• # Juan Antonio Marín (first round, retired)