Here are the possible solutions for one who can keep on running after hitting the wall clue
Answer
Clue
Relevancy
marathoner
Clue
One who can keep on running after hitting the wall
Definition
one who takes part in a marathon
toolers
Clue
Five-___ (baseball slang for position players who excel at hitting for average, hitting for power, baserunning, throwing ability, and fielding) (I swear this is a real thing)