To Act as the Person in Charge of Sporting Events

This page is the CodyCross answer for the clue below from Botanical Garden, Group 1424, Puzzle 2 (Guided Tours).

Question is: To Act as the Person in Charge of Sporting Events

and the answer is: OFFICIATE

Word Meaning:

OFFICIATE — (intransitive, transitive) To perform the functions of some office.

Definitions from Wiktionary.