The 1986 du Maurier Classic was contested from July 24–27 at Board of Trade Country Club. It was the 14th edition of the du Maurier Classic, and the eighth edition as a major championship on the LPGA Tour.

This event was won by Pat Bradley in a sudden-death playoff over Ayako Okamoto with a birdie on the first extra hole.

Place	Player	Score	To par	Money (US$)
1	Pat Bradley	73-70-67-66=276	−12	52,500
2	Ayako Okamoto	73-70-69-64=276		32,375
T3	Betsy King	72-67-71-71=281	−7	21,000
	Nancy Scranton	70-64-78-69=281
T5	Christa Johnson	67-68-74-73=282	−6	13,563
	Cathy Morse	70-73-68-71=282
7	Rosie Jones	72-72-71-68=283	−5	10,325
T8	Amy Alcott	75-72-68-69=284	−4	8,225
	Patti Rizzo	74-69-70-71=284
	Sherri Turner	71-71-73-69=284

• Golf Observer source

43°47′36″N 79°35′18″W / 43.793402°N 79.588323°W / 43.793402; -79.588323