Northamptonshire advanced to the T20 Blast final following a narrow semi-final victory over Somerset, the competition's two-time defending champions. Despite managing only 143 runs in their own innings, Northants' disciplined bowling performance restricted Somerset to 126-9, yielding a 17-run win and a return to the final for the first time since their championship-winning year of 2016.

Somerset's bowlers initially dominated the contest through early breakthroughs, with Jake Ball taking four wickets whilst Northants reached 91-4. Chris Lynn's 39 helped stabilise the innings. During Somerset's chase, Will Smeed's aggressive 49 briefly suggested a successful run-down of the target, yet Northants' bowling unit, spearheaded by skipper David Willey's three wickets and featuring outstanding fielding moments, proved sufficient to secure the victory.