There was a fourth place and a seventh place finish for the two Island residents competing in the Spanish MotoGP.
Cal Crutchlow finished outside of the podium places in fourth behind Yamaha team-mate Andrea Dovizioso.
Northern Ireland rider Rea, deputising for injured world champion Casey Stoner, was in a fine seventh place at Aragon.
Dani Pedrosa kept his faint hopes of a first MotoGP championship alive with a dominant win from pole-sitter Jorge Lorenzo.
Open trial for FC Isle of Man's women's team
footballers invited to session at Colby AFC tonight
FC Isle of Man launches women's team
"We want to create opportunities" says club chairman
Rugby: Vagabonds beaten at home in challenging conditions
Manx sides affected by Storm Boelo
Football: Castletown win on storm disrupted Saturday
Only one fixture was played due to Storm Boelo