Sydney University Baseball Club’s Third Grade side has made it through to the grand final of the Sydney Winter Baseball League.

The Thirds accounted for Hawkesbury 7-3 in their final at Petersham Oval on Saturday to book a grand final berth against Petersham.

Sydney University Second Grade made it to the final where they were beaten 10-9 by Petersham, who will now meet Marrickville in the grand final.

The First Grade grand final will be fought out between Petersham and Quakers Hill.

The three season deciders will be held at Petersham Oval on Saturday.