The Mariners triumphed 35-21 in the semi-final derby at Rugby Camp in Hilsea on Saturday to set up a showdown against Overton Vets on a date to be announced.
Overton were comprehensive 51-5 winners at home to Trojans Vets in the other last-four clash.
5. Havant's Rob Ede, right, competes for the ball near the tryline
Havant's Rob Ede, right, competes for the ball near the tryline. Picture: Chris Moorhouse (jpns 220423-037) Photo: Chris Moorhouse
6. Havant's Wayne John spins the ball out of the contact area
Havant's Wayne John spins the ball out of the contact area. Picture: Chris Moorhouse (jpns 220423-035) Photo: Chris Moorhouse
7. Havant's Wayne John spreads the play
Havant's Wayne John spreads the play. Picture: Chris Moorhouse (jpns 220423-033) Photo: Chris Moorhouse
8. Havant in possession during their Hampshire Veterans Cup semi-final triumph away to Portsmouth at Rugby Camp in Hilsea
Havant in possession during their Hampshire Veterans Cup semi-final triumph away to Portsmouth at Rugby Camp in Hilsea. Picture: Chris Moorhouse (jpns 220423-034) Photo: Chris Moorhouse