Jake Lehmann has converted a fifty into three figures at the sixth attempt as Hampshire avoided defeat at home in the County Championship for the first time in 10 months.
Champions and table-toppers Nottinghamshire had hoped to rip through the hosts on the final day to secure victory, but despite Fergus O'Neill taking match figures of 8-86 they found his fellow Australian blocking their path as they finished on 6-207 with a lead of 192.