Scott Taylor's barging late try saw Hull maintain their 100 per cent winning start - and heap pressure on Leeds.
The veteran ex-England prop twisted over in the 74th minute, shortly after Rhinos thought they’d grabbed victory with David Fusitu’a’s effort. It meant Hull boss Tony Smith has two wins from two but his opposite number and nephew Rohan is yet to get off the mark for struggling Rhinos. His side were left red-faced after blowing two gilt-edged chances beforehand.
Cameron Smith broke clear only to pass to Hull centre Cameron Scott and then Blake Austin spilled with the line begging after Ash Handley had got free, too. It proved so costly. Hull had extended their interval lead to 16-6 in the 48th minute. Jordan Lane sent Josh Griffin charging through the middle on halfway and Adam Swift rounded off impressively for Jake Clifford to convert.