What is the name of the event where competitors received the most gold medals?
received the most gold medals refers to MAX(COUNT(medal_name = 'Gold'));
SELECT T2.event_name FROM competitor_event AS T1 INNER JOIN event AS T2 ON T1.event_id = T2.id INNER JOIN medal AS T3 ON T1.medal_id = T3.id WHERE T3.medal_name = 'Gold' GROUP BY T2.id ORDER BY COUNT(T1.event_id) DESC LIMIT 1