The Pilgrims were involved in a topsy-turvy encounter against AFC Fylde at Mill Farm – before eventually prevailing 4-3.
United had trailed 2-0 and 3-2 before goals from Slater and Stevens in the final quarter of the match secured all three points on the road for the Pilgrims.
Boston (4-2-3-1): Jake Lovelace; Taylor Jaine, Owen Sheriff, Lucas Stubbs, Josh Doran (Will Langford 64); Taylor Redman, Han Stevens; Krisztian Gagyi (Jake Henderson 48), Lucas Turrell (Jake Higginbottom 71), JJ Ward; Flynn Slater.