One Who Sets the Speed in an Athletics Race
This page is the CodyCross answer for the clue below from Mexico, Group 1378, Puzzle 5 (The Cry of Dolores).
Question is: One Who Sets the Speed in an Athletics Race
and the answer is: PACEMAKER
Word Meaning:
PACEMAKER — (anatomy) Specialized cells which stimulate the heart to beat.
Definitions from Wiktionary.