Grebner won the overall title at the UMary Pentathlon on Saturday with a combined time of 2:51.65 in five events, which was 7.90 seconds faster than the meet's runner-up. She won all five of the afternoon's events, winning the 50-yard butterfly (26.76), 50-backstroke (28.22), 50-yard breaststroke (31.45), 50-yard freestyle (24.66), and 100-yard IM (1:00.56). At the meet she set three new personal best times in the 50-yard freestyle, 50-yard backstroke, and 50-yard butterfly, while also setting a season best time in the 50-yard breaststroke. Through the completion of 11 regular season meets, Grebner has won 29 individual events and recorded 31 top-3 finishes.