Brunner had one of the best runs for a Fordham swimmer at the 2019 Atlantic 10 Championship, held at the Spire Institute in Genevea, Ohio. Out of seven total swims, she medaled seven times, earning one gold, five silvers, and one bronze. She earned First Team All-Atlantic 10 honors as a part of the 200 medley relay, and then was Second Team All-Conference in the 50 freestyle, 100 freestyle, 100 butterfly, 200 freestyle relay, and 400 freestyle relay events. She also set school records in the 50 (22.97) and 100 (49.74) freestyle, as well as the 400 freestyle relay (3:22.18).