inside track; inner lane
Used in track and field, speed skating, and similar sports for the innermost lane of a track. Wasei-eigo from 'in course'.
wasei-eigo (Japanese-coined English), from in course
He ran on the inside track and pulled away on the final straight.
inside pitch
Baseball term for a pitch that passes close to the batter on the inside part of the strike zone.
The pitcher attacked the inside part of the plate aggressively.