Answered April 2nd, 2019

DeMar DeRozan drained a season-high 15 free throws as part of a 29-point performance in a Spurs win over the Hawks.

What are the most FTM in a game this season by DeMar DeRozan?
Interpreted as:
What are the most FTM in a regular season game this season by DeMar DeRozan?