The Pilgrims thrashed Dunkirk 8-1 in front of 339 spectators at a rain-drenched Jakemans Community Stadium, with Harris opening the scoring after two minutes and adding further goals in the 31st and 55th minutes. Foster did likewise with a treble across minutes 67, 75 and 83.
Krisztian Gagyi (49) and Logan Tate (88) also got themselves on the scoresheet - as did Lewis Allen for Dunkirk three minutes from time - while Wilkinson denied Logan Wishart from the spot with the score at 2-0 in the first half.
Boston (3-4-2-1): Charlie Wilkinson; Bailey Dilley, Owen Sheriff, Ben Robson (Taylor Jaine 76); Krisztian Gagyi (Logan Tate 69), Mackenzie Burdass, Joe Melson, Zane Millar; Han Stevens, Elliot Foster; Sam Harris (Charlie Earth 61). Subs (not used): Jake Henderson, Mark Williams, Finley Rodgers, Cameron Fox (gk).
Referee: Istvan Mod.
Attendance: 339.
PIC: Russell Dossett.