Thomas Dickson Armour III (born October 8, 1959) is an American professional golfer. Armour first joined the PGA Tour in 1981 at the age of 21. He has two career PGA Tour victories, winning the 1990 Phoenix Open and the 2003 Valero Texas Open. Armour previously held the scoring record for best overall 72 hole score (254), which he set with his Valero Texas Open victory in 2003, until it was surpassed in 2017 by Justin Thomas. He made his Champions Tour debut at The ACE Group Classic in February 2010.