The Ontario 55+ Summer Games are held in August of odd numbered years; the Ontario 55+ Winter Games are held in February of even numbered years.
The first Ontario 55+ Summer Games were held in 1986; the first Ontario 55+ Winter Games were held in 2000.
In 2011 the name of the Summer Games was changed from Actifest to Ontario 55+ Summer Games; the name of the Winter Games was changed from Winterfest to Ontario 55+ Winter Games.
Since multiple events are held on the same day at the Ontario 55+ Games, district winners qualify to play in one event at the provincial games.
Gold medal winners at Ontario 55+ Games qualify for the Canada 55+ Games being held in the next even numbered year.