Boro have spent the season languishing in the lower reaches of the table but a first-half masterclass left Nigel Pearson`s men stunned.
Jay Simpson`s third-minute opener put the Tigers ahead but Australian frontman McDonald struck twice in quick succession to put the visitors in control and Julia Arca added a third before McDonald grabbed his third on the stroke of half-time.
Anthony Gerrard replied for Hull in the second half but the result was a huge blow to Hull`s bid to sneak a top-six finish and gave Tony Mowbray`s men only their sixth away win of the campaign.
.
Boro hit the crossbar late on through substitute Leroy Lita as Hull were spared further embarrassment.
Source: PA
Source: PA