senior, Argentina Open 2018: Number of winners by nation

Country	Team	Medals	Winner
Brazil	show team	40 medals	11
			6
			23
Argentina	show team	13 medals	4
			6
			3
Peru	show team	5 medals	2
			3
Chile	show team	5 medals	1
			1
			3
Puerto Rico	show team	1 medals	1