"I have let my family down and I regret those transgressions with all of my heart," he writes. "I have not been true to my values and the behavior my family deserves. I am not without faults and I am far short of perfect."
In the wake of a one-car accident last week, rumors swirled that the crash was somehow caused by allegations that Woods, 33, had had an affair behind wife Elin Nordegren's back. Despite Florida authorities saying they considered the case closed, scrutiny only grew – and another woman emerged, claiming she and the pro golfer had had a 31-month romance.
Woods, while not explicitly admitting to extramarital affairs, pleaded for privacy in his Wednesday mea culpa.
"I am dealing with my behavior and personal failings behind closed doors with my family," he writes. "Those feelings should be shared by us alone."
Later, he adds: "Personal sins should not require press releases and problems within a family shouldn't have to mean public confessions ... I will strive to be a better person and the husband and father that my family deserves. For all of those who have supported me over the years, I offer my profound apology."
Check out photos of Tiger and Elin's family life at Golf.com