Later in the year, at the 2014 Summer Youth Olympics in August in Nanjing, China, Chalmers won three bronze medals, one in the 4×100 metre medley relay, one in the 4×100 metre mixed freestyle relay, and one in the 4×100 metre mixed medley relay, as well as placing fifth in the 4×100 metre freestyle relay, ninth in the 50 metre butterfly, eleventh in the 50 metre freestyle, fifteenth in the 100 metre freestyle, and not starting the 200 metre freestyle.