April 23-26: Tournament of Champions, Desert Inn CC, Las Vegas, Nev., $40,000.
April 30-May 3: Colonial National Invitational, Colonial CC, Fort Worth, $25,-000.
May 7-10: Oklahoma City Open Invitational, Twin Hills G&CC, Oklahoma City, $25,000.
way 14-17: Sam Snead Festival, The Greenbrier, White Sulphur Springs, W. Va., $10,000.
May 15-16: Walker Cup, Muirfield, Gullane, Scotland.
May 25-28: British Women's Championship, Berkshire GC, Ascot, England.
May 25-30: Amateur, Royal St. George's GC, Sandwich, Kent, England.
May 28-31: Kentucky Derby Open Invitational, Seneca CC, Louisville, $20,000. May 27: Pro-Am.
June 4-7: Eastern Open Invitational, Mount Pleasant Golf Course, Baltimore, $20,000.
June 11-13: USGA Open Championship, Winged Foot GC, Mamaroneck, N.Y., $40,000. Local qualifying May 18; sectional qualifying June 1.
June 18-21: Canadian Open Championship, Islesmere G&CC, Montreal, Que.
June 25-27: Women's Open, Churchill Valley CC, Pittsburgh.
June 25-28: Glen Eagles Chicago Open, Glen Eagles CC, Lemont, Ill., $50,000.
July 2-5: Buick Open Invitational, Warwick Hills G&CC, Grand Blanc, Mich., $50,000.
July 13-18: Public Links, Wellshire GC, Denver. Sectional qualifying June 22-27.
July 16-19: Insurance City Open Invitational, Wethersfield CC, Conn., $25,000.
July 29-Aug. 2: PGA Championship, Minneapolis GC, St. Louis Park, Minn., $30,000 minimum.
Aug. 6-9: Carling Open Invitational, club to be announced, Cleveland, $25,000.
Aug. 12-15: Eastern Senior Championship, Elizabeth Manor G&CC, Portsmouth, Va.
Aug. 12-16: Eastern Amateur, Elizabeth Manor G&CC, Portsmouth, Va.
Aug. 13-16: Motor City Open Invitational, Meadowbrook CC, Northville, Mich., $25,000. Aug. 12: Pro-Am.
Aug. 20-23: Rubber City Open Invitational, Firestone CC, Akron.
Aug. 24-29: Women's Amateur, Congressional CC, Washington, D.C.
Aug. 27-30: Miller Open Invitational, Tripoli GC, Milwaukee, $35,000.
Sept. 4-7: Kansas City Open Invitational, Hillcrest CC, Kansas City, Mo.
Sept. 14-19: Amateur, Broadmoor GC, Colorado Springs. Sectional qualifying Sept. 1.
Oct. 5-10: Senior Amateur, Memphis CC. Sectional qualifying Sept. 22.
Nov. 7-8: Ryder Cup, team match between United States and British pros, Eldorado CC, Palm Desert, Calif.