With Katelyn Fairchild scoring five times for Hucknall, the game was close until Caledonia broke clear in the final period with goals by Nicola Tate (2), Gael Drummond, Claire Moloney and Alison Tate (Photo: Trevor Hyde).
At the top of the table, City of Manchester also left it late to beat City of Coventry, the division's other undefeated team, 12-7. Coventry trailed only 8-7 at the start of the last quarter. Then Manchester took charge, with Isobel Howe claiming a hat-trick to take her match tally to six.
Goals in the final period by Rebecca Mulcahy, Robyn Greenslade and Lily Turner clinch Otter's 9-7 victory over Liverpool Lizards after the teams began the final period at 6-6.
Manchester, Coventry, Otter, Liverpool and Caledonia will contest the Super 5s. Reward for Manchester in taking top spot is that they avoid playing two matches in a day during the second phase of the season.