US PGA Champions Tour/European PGA Seniors Tour
May 24-27 Senior PGA Championship presented by KitchenAid, The Golf Club at Harbor Shores, Benton Harbor, Michigan, $2,000,000. Last year's winner: Tom Watson
US PGA Tour
May 24-27 Crowne Plaza Invitational at Colonial, Colonial CC, Ft. Worth, Texas, $6,400,000. Last year's winner: David Toms
European PGA Tour
May 24-27 BMW PGA CHAMPIONSHIP, Wentworth Club, Surrey, England, €4,500,000. Last year's winner: Luke Donald
European PGA Challenge Tour
May 24-27 Telenet Trophy, Ravenstein Royal GC of Belgium, Tervuren, Belgium, €160,000. Last year's winner: Andrew Tampion
Ladies European Tour
May 24-27 UniCredit Ladies German Open presented by Audi, Golfpark Gut Häusern, Munich, Germany, €350,000. Last year's winner: Diana Luna
PGA of Australia Pro-Ams
May 23-24 Capcoal Middlemount Pro-Am, Middlemount Golf Club, QLD, $17,500
May 23 Alan Day - Mandurah Country Club Pro-Am, Mandurah Country Club, WA/NT, $10,000
May 24-27 2012 Jeep Pro-Am Tour - Victoria, Moonah Links, VIC, $100,000
May 24-25 Mandurah Toyota Invitational Pro-Am at The Cut Golf Club, The Cut Golf Club, WA/NT
May 26-27 Dysart BMA Pro-Am, Dysart Golf Club, QLD, $17,500
May 27 Busselton Golf Club Pro-Am, Busselton Golf Club, WA/NT, $10,000
May 29 NSW/ACT PGA AGM & Foursomes Championships, Bonnie Doon Golf Club, NSW/ ACT, $10,000
May 29 Greenline John Deere Pro-Am at Harvey Golf Club, Harvey Golf Club, WA/NT, $7,000 (NON OOM Event)