Lewis was enjoying another impressive afternoon on Watford’s left and the Newcastle United loanee nearly scored his first goal for the club with a shot that was punched into the air by Allsop.
The Hull goalkeeper could do little about what followed, however. Imperious at the back once again, Hoedt dispossessed Delap just inside the half and sent an outrageous chip over the stranded Allsop and into the top corner to restore Watford’s lead in unbelievable fashion with quarter of an hour to play.
Ismaël opted for defensive reinforcements, introducing Francisco Sierralta and Mattie Pollock in place of Andrews and Sema as the visitors prepared for the inevitable Hull City onslaught.
Philogene threatened once more for the Tigers, this time finding the roof of the net with a dangerous effort from 20 yards.
Despite throwing men forward in the latter stages, the Tigers failed to test Hamer with any further meaningful attempts on goal and – helped by the stoppage-time introduction of Tom Dele-Bashiru for Koné – Watford earned another memorable and important three points.