With five changes from the side that were defeated by Woodhall Spa last Saturday, captain Jonny Cheer gave First XI debuts to Joe Gilbert and Martin Hodgson and also brought in Luke Gilding, Tim Norris and Rowan Evans.
The coin came down in favour of Boston, who had no hesitation in batting first but lost Gilbert, Cheer and Tom Baxter early on.
However, the promotion of Elleray to the top of the order proved a masterstroke as he put on 33 with Norris and then 35 with Gilding, before eventually being dismissed for 91.
Elleray’s fantastic knock was made even more sensational that it came off only 63 balls and 64 of his runs came from boundaries.
“It was a fantastic knock and something that was much needed, especially after our loss of early wickets. He batted very sensibly and just waited for the bad balls,” Cheer said.
Evans added 47 not out, ably supported by Hodgson (16) and Bell (12), saw Boston end their 40 over innings on 207-9.
Market Deeping were 3-3 thanks to Elleray and Bell (two) before Baxter dismissed Malton after a tremendous catch by Gilding at extra cover.
Paul Deans bowled Hook for 59 before Hodgson picked up three wickets.
The introduction of Jack Tetther into the attack saw him pick up the final two wickets and lead Boston to a 23-run victory.
On Saturday Boston travel to Sleaford.