Those errors left him too far back to prevent Woods claiming a remarkable fifth Masters victory and a 15th major championship, with Molinari limping home in 74 to finish two shots off the pace on 11 under par.
The Italian looked to have the tournament under control around the turn until he suddenly opened the door for Tiger Woods and the chasing pack when he dumped his tee shot into the water at the short 12th and, after getting one shot back at 13, his pitch at the 15th clipped a tree and landed in the middle of the pond as he carded his second double-bogey in four holes.
A gritty two-under 70 clinched a one-shot victory over Dustin Johnson, Brooks Koepka and Xander Schauffele and earned the 43-year-old a 15th major title that many thought would never come.
Tiger Woods celebrates after sinking his putt to win the Masters. "I was just trying to plod my way around all day then all of a sudden I had the lead".
Just off the 18 green, Woods hugged his mother as he had his late father Earl in 1997 and held his children, his back more than up to the task as the crowd chanted his name, a rare tribute, and rivals congratulated him as he entered the clubhouse. When I tapped in I don't know what I did, I know I screamed.
Gantz Does Not Concede Elections
Some 40 parties took part in the election, and only those that receive at least 3.25% of the votes make it into parliament. The Palestinian issue and prospects for peace negotiations were notably absent from political debate this election.
"To have my kids there - it's come full circle".
With Finau also carding a bogey and Koepka dropping a shot at the sixth, Molinari suddenly found himself alone at the top of the leaderboard with a three-shot advantage.
All those moments built to Sunday, when Woods was once again his old familiar dominating self. Overnight leader Francesco Molinari title charge collapsed with two double bogeys.
They will tee off at 9:20 am ET (1320 GMT) as officials pushed up start times in a desperate bid to get the season's first major across the finish line before storms hit. "I'm so happy for him and for the game of golf this is so fantastic".