UNDATED: Buick ended more than 50 years of PGA Tour sponsorship Tuesday when it announced that it no longer will sponsor golf tournaments in Michigan and California because of the court-ordered restructuring of parent General Motors.

The decision came two days after Tiger Woods won the Buick Open in Grand Blanc, Michigan. Woods acknowledged the end of the tournament, which he won for the third time, by heaving his golf ball toward a massive gallery after his final putt.

The additional blow came with the end of the Buick Invitational at Torrey Pines, where Woods has won a record six times. The Buick Invitational is among the top tournaments in the early part of the PGA Tour schedule because it typically is the first event on network TV and has the highest TV rating because of Woods.