Bernhard Langer remained atop the leaderboard in the season - long Charles Schwab Cup race with 928 points .
David Frost closed the gap a bit by finishing T4 in Savannah and earning 57 points .
Bernhard Langer remained atop the leaderboard in the season - long Charles Schwab Cup race with 928 points , but David Frost closed the gap a bit by finishing T4 in Savannah and earning 57 points .