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.
'She changed my life': Tributes paid to former schoolteacher
'Mrs Messenger' was a netball coach and taught at Castle Rushen High School
David Mullarkey selected by Great Britain for road running championships
Island athletics star heading for Denmark
Harris wins opening qualifying round at US Open
He beat Gonzalo Beuno by two sets
Michael Dunlop wins Senior Classic TT
Seven Mountain Course victories for Ballymoney man in 2026