The Mooloos kept their hands on the Ranfurly Shield after claiming a 28-3 victory over the now-relegated ITM Cup outfit Hawke's Bay in Hamilton.
The Magpies were just 6-3 down with half-an-hour played at Waikato Stadium but then folded as their fate was confirmed when tries from Alex Bradley, Declan O'Donnell and Save Tokula created a gap.
Waikato were playing under the knowledge they couldn't make the play-offs and so victory meant they finished the ITM Cup season in fifth position.
Tries: Bradley, O'Donnell, Tokula
Con: Renata 2
Pen: Renata 3
For Hawke's Bay:
Waikato: 15 Trent Renata, 14 Declan O'Donnell, 13 Save Tokula, 12 Jackson Willison, 11 Joe Webber, 10 Sam Christie, 9 Tawera Kerr-Barlow, 8 Alex Bradley (c), 7 Zak Hohneck, 6 Matt Vant Leven, 5 Sam Kilgour, 4 Romana Graham, 3 Ben May, 2 Marcel Cummings-Toone, 1 Toby Smith.
Replacements: 16 Vance Elliott, 17 Latu Talakai/Ted Tauroa, 18 Anthony Wise, 19 Rory Grice, 20 Brendon Leonard, 21 Piers Francis, 22 Navi Sikivou.
Hawke's Bay: 15 Gillies Kaka, 14 Maritino Nemani, 13 Marvin Karawana, 12 Andrew Horrell, 11 Penikolo Latu, 10 Ihaia West, 9 Isaac Paewai, 8 Karl Lowe (c), 7 Tivaini Fomai, 6 Trent Boswell-Wakefield, 5 Maselino Paulino, 4 Ross Kennedy, 3 Peter Borlase, 2 Hika Elliot, 1 Brendon Edmonds.
Replacements: 16 Ash Dixon, 17 Jody Allen, 18 Johan Schoonbee, 19 Adam Bradey, 20 Michael Ruru, 21 Star Timu, 22 Bronson Neera.
Referee: Jonathan White