Havant scored three times in seven first half minutes to set up a first England Hockey West Conference 5-2 win over newly promoted Clifton Robinsons.
Maciej Janiszewski and Muhammad Arshad each scored twice for Havant, while Portsmouth Grammar School's Ethan Hoddle scored his maiden Conference goal.
Fareham came from 2-0 down at half-time at Sophia Gardens to peg Cardiff & Met 2-2. But strikes by Alex Boxall and Martin Gough were wiped out when Cardiff scored twice in six second half minutes to run out 4-2 winners.
Welcome to Vimps at the Hockey
Powered by Cricket-Hockey.com, the hockey equipment specialists in Downton, Salisbury