The win over their city rivals might well have ended a run of three straight Ross Shield trophies for Hastings West.
East will play Dannevirke at 3pm on Thursday and Wairoa at 1pm on Friday in their last two games, knowing two wins will see them crowned champions.
Hastings West and Napier are currently in a tie for second place on four competition points, while Central Hawke's Bay got their first win of the tournament on Wednesday over Wairoa, coming back from a halftime deficit to win 26-19.
Results
Monday:
Central HB 0 - 50 Hastings West
Wairoa 0 - 34 Dannevirke
Napier 14 - 24 Hastings East
Tuesday:
Central HB 0-38 Hastings East
Wairoa 0-54 Napier
Hastings West 48-0 Dannevirke
Wednesday:
Napier 55-5 Dannevirke
Wairoa 19-26 Central HB
Hastings East 34-12 Hastings West
Remaining fixtures
Thursday:
11am - Napier vs Central HB
1pm - Hastings West vs Wairoa
3pm - Dannevirke vs Hastings East
Friday:
11am - Central HB vs Dannevirke
1pm - Hastings East vs Wairoa
3pm - Hastings West vs Napier