McGeehan scored shortly before the half-hour mark and then again with six minutes to go on a wonderful Sixfields night. Here are our player ratings...
9. Cameron McGeehan
The match-winner. It is no fluke that he so often pops up in goalscoring positions. His sense for being in the right place is second to none. Timed his run perfectly to bundle in the first and then a smartly-taken finish from Roberts' lay-off sealed derby day spoils. Six for the season and there's more to come.... 8.5 Photo: Pete Norton
10. Sam Hoskins
A frustrating night. As ever his work-rate and commitment could not be questioned but that sharpness with the ball was lacking. Squandered several promising attacks.... 7 Photo: Pete Norton
11. Tyler Roberts
Led the line well and caused problems as Town's chief threat. A few dangerous moments early on before winning the corner that led to the first. Less involved in the second half but had a huge role in the winner. Stayed calm and composed to bring down Pinnock's cross and tee up McGeehan... 7.5 Photo: Pete Norton
12. Ben Fox
Asked to push high and be aggressive after coming on and whilst that was a risky strategy, it ultimately paid off... 6.5 Photo: Pete Norton