Marc Leishman tees off on the 17th at TPC Boston.
Marc Leishman tees off on the 17th at TPC Boston. Michael Dwyer

Leishman in contention in FedEx Cup playoff

AUSTRALIAN Marc Leishman will have to hold off some formidable opponents if he is to win the Dell Technologies Championship in Boston.

Leishman's round of 65 on a wet day at the TPC Boston course put him on top of the leaderboard alongside US PGA champion Justin Thomas who fired a 63.

The 24-year-old world number seven recorded 12 threes, a record for a round in the FedEx Cup playoffs.

The pair is on 12-under going into the final round one ahead of Englishman Paul Casey, and a further shot clear of world No.2 Jordan Spieth.

A win for Leishman right in the hunt for the FedEx Cup and its $US10 million bonus that goes to the winner of the season-long points race after the fourth and final playoffs event, the 30-man Tour Championship.

Fellow Australian Jason Day improved only slightly with a 70 to be tied 44th at one over.