He got out to a blistering start, shooting 6-under in Round 1 to take a lead ahead of Brian Harman and Jordan Spieth (each 5-under).
Louis Oosthuizen Open Championship Golf Odds
FanDuel Sportsbook's Open Championship odds now have Oosthuizen tied with Spieth as the favorite to win the event at +480.
There are still some golfers remaining in Round 1, but Oosthuizen is a commanding -550 favorite to finish the day as the Round 1 leader.
Oosthuizen previously won The Open in 2010 and finished T-2 in 2015 — both times at St. Andrews.
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Jason Schandl is not a FanDuel employee. In addition to providing DFS gameplay advice, Jason Schandl also participates in DFS contests on FanDuel using his personal account, username Jaymun. While the strategies and player selections recommended in his articles are his personal views, he may deploy different strategies and player selections when entering contests with his personal account. The views expressed in his articles are the author's alone and do not necessarily reflect the views of FanDuel.