After a successful career as an amatuer, Marc found success in his first year as a professional, winning three tournaments in his debut year on the Tour. He then found success in the US, with wins on the Nationwide Tour in 2008 and a standout first season on the US PGA Tour in 2009 with three top ten finishes. He recorded his first win on the US PGA Tour in 2012, winning the Travelers Championship with a final round of 62.
2017 undoubtedly has been Marc's best on the PGA Tour as he finished 5th in the FedEx Cup Rankings for the 2017 season. With wins at the BMW Championship with a tournament record -23 and the Arnold Palmer Invitational presented by Mastercard, Marc also recorded 4 top 10 finishes on the PGA Tour. As a result of such a strong year, Marc climbed to 16th on the Official World Golf Rankings which is the highest he has been ranked in his career.
- 2012 US PGA Tour winner
- 2009 US PGA Tour Rookie of the Year
- 2008 Nationwide Tour winner
- 2008 Vic PGA winner Media Notes
- 2017 BMW Championship Winner
- 2017 Arnold Palmer Invitational Winner
- Finished 5th in 2017 Fed Ex Cup
- Four top 10 finishes at Majors since 2013