Otter led 3-0 in the second quarter and, although Liverpool pulled up to 4-4 towards the end of the third, Otter went into the last minute of the game with a 7-5 lead.
It wasn't enough. An Otter exclusion gave Laura Hesketh the chance to cut the advantage to a single goal with 51 seconds remaining. And there were just seven seconds left when Beth Bolton levelled a terrific match at 7-7. Liverpool goals: Kathryn Fowler (2), Katie Hesketh, Laura Hesketh, Beth Bolton, Alice Byrne, Lauren Tasker. Otter: Emma Hamilton-Foster (2), Katherine Rogers (2), Alexis Higlett (2), Cecily Turner.
Manchester beat Coventry 11-8, powering clear in the final period when goals by Stephanie Whittaker (2), Anya Clapperton, Ella Chadderton and Emmie-Rose Eastwood tipped the balance after the sides were level at 6-6 after three quarters.
Later, Liverpool easily accounted for Leeds Sharks, 14-5, including four goals by Katie Hesketh.