https://www.latimes.com/archives/la-xpm-1990-01-01-sp-130-story.html
Mark Calcavecchia shot a final-round 71 for... - Los Angeles Times
Jan 1, 1990 - Mark Calcavecchia shot a final-round 71 for a one-stroke victory in the Spalding Invitational Pro-Am golf tournament at Scottsdale, Ariz.
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https://www.thegolfauction.com/Category/Mark_Calcavecchia-171.html?auctionId=197
Mark Calcavecchia - 2025 October Golf Memorabilia Auction - Closing Date 10/20/25
mark calcavecchiaclosing dateoctobergolfmemorabilia