American young gun Jordan Spieth won the 79th US Masters in record-equalling style with a wire-to-wire victory, landing his first major title by four shots from Phil Mickelson and Justin Rose.

Four strokes ahead going into the final round at Augusta National, the 21-year-old Texan closed with a two-under-par 70 to match Tiger Woods' tournament record low of 18-under 270 for 72 holes.

YOUNGEST MASTERS WINNERS

Tiger Woods (1997) - 21 years, 3 months, 14 days

Jordan Spieth (2015) - 21 years 8 months 16 days

Seve Ballesteros (1980) - 23 years, 4 days

Jack Nicklaus (1963) - 23 years, 2 months, 17 days