mark Spieth finished joint second on his Masters debut last year . The 21-year - old believes he is now better equipped to win at Augusta . He admits he regretted things after throwing away a four - stroke victory in 2014 . Spieth will play alongside mark Stenson and Billy Horschel on Thursday . READ : Sportsmail 's Masters 2015 betting guide .
Jordan Spieth finished joint second on his Masters debut last year . The 21-year-old believes he is now better equipped to win at Augusta . He admits he learned things after throwing away a two-shot lead in 2014 . Spieth will play alongside Henrik Stenson and Billy Horschel on Thursday . READ : Sportsmail 's Masters 2015 betting guide .