Woodhall Spa CC will face Sleaford in the semi-finals of the Wilkinson Family Trophy.
The Lincs ECB Premier champions will host the side they beat to claim the title at Jubilee Park - as the county’s top four sides battle it out in the season finale.
Bourne’s victory over basement side Boston saw them leapfrog Sleaford - who were without a game - to claim third spot.
They will travel to runners-up Bracebridge Heath in the other semi-final.
Action will get underway at noon this Saturday.