She began the year in San Francisco, defeating Françoise Dürr and Virginia Wade before losing to Chris Evert in the final. The following week, King won the Sarasota, Florida tournament, defeating Evert in the final 6–3, 6–2. Evert said immediately after the final, which was her thirteenth career match with King, "I think that's the best that Billie Jean has ever played. I hit some great shots but they just kept coming back at me." Looking back at that match, King said, "I probably played so well because I had to, for the money. Out of frustration comes creativity. Right?" Two months later, Wade defeated King in the semi-finals of the Philadelphia tournament. At the Austin, Texas tournament in April, King defeated Evonne Goolagong 6–1, 6–3 before losing to Evert in the final. As King was serving for the match at 6–5 in the third set, a disputed line call went in Evert's favor. King said after the match that she was cheated out of the match and that she had never been angrier about a match.