[1] The opening fixture will take place a week early to the following two games of the same round, with it doubling up as a 2019 Rugby World Cup Americas qualifier match for Canada and Uruguay.

Man of the Match: Nicolás Freitas (Uruguay) Touch judges: Kurt Weaver (United States) Derek Summers (United States) Television match official: Marc Nelson (United States) Notes: Touch judges: FRC Appt.

(Chile) Notes: Touch judges: Mike O'Brien (United States) Lee Bryant (United States) Television match official: USA Appt.

(United States) Touch judges: Murilo Bragotto (Brazil) Cauã Ricardo (Brazil) Television match official: Xavier Vouga (Brazil) Notes: Touch judges: Damián Schneider (Argentina) Juan Pablo Federico (Argentina) Television match official: UAR Appt.

(Argentina) Touch judges: Derek Summers (United States) Phil Akroyd (United States) Television match official: Marc Nelson (United States) Notes: Touch judges: USAR Appt (United States) USAR Appt (United States) Television match official: USAR Appt (United States) Notes: Touch judges: Rodrigo Goyret (Uruguay) Gonzalo Ventoso (Uruguay) Television match official: URU Appt (Uruguay) Touch judges: Harry Mason (Canada) Robin Kaluzniak (Canada) Television match official: RC Appt (Canada) Notes: Touch judges: FRC Appt.