Josiah Middaugh and Myriam Guillot-Boisset captured the elite titles at XTERRA Argentina in San Juan on Saturday. The victories put both Middaugh and Guillot-Boisset atop the leader board in the inaugural XTERRA Pan American Tour standings. It’s the second win in as many weeks for Guillot-Boisset, who took home the XTERRA Costa Rica title last Sunday, and the first major XTERRA victory of the year for Middaugh, the reigning XTERRA World Champ.