Mears competed in the World Series circuit with diving partner Robinson-Baker in the synchro, and also competed in the individual event. The pair won bronze in Edinburgh and bronze twice in Guadalajara, Mexico. Mears also scored a total of 455.50 points- fourth position in the individual 3m in Guadalajara, Mexico- his best individual World Series performance to date. Mears and Robinson-Baker ended 2013 ranked seventh best in the world by FINA. Mears also participated in the 2012 European Championships, finishing 8th in the 3 m springboard and 5th in the synchro event on the same occasion.