The South African finished the tournament tied with Wallace at 18 over, before winning in a play off.
Lawrence stated, Its an honor to be able to win this victory.
There is so much history surrounding this event, all past champions, so its hard to wait to get my hands upon that trophy.
Its a tricky course. You can lose a few shots especially around the 14th and 15th par fives. One guy can make silly mistakes, while another can make birdies.
But Im just glad with my patience and Im so happy to be able win this week.
Englands Richard MansellAfter a round of 67 with three under, the 16-under finish was the only one in third place.