1973 U.S. Professional Indoor – Singles

Singles

Champion

Runner-up

Final score

7–6^(7–2), 7–6^(7–5), 4–6, 6–4

Events

← 1972 ·

U.S. Professional Indoor

· 1974 →

Rod Laver was the defending champion, but lost in the quarterfinals this year.

Stan Smith won the title, defeating Robert Lutz 7–6^(7–2), 7–6^(7–5), 4–6, 6–4 in the final.