Rushden's Wilson was caught in possession on 11 minutes, robbed of the ball, and a neat pass across the box was laid into the path of Mark Fiore who rattled his shot past the Feuer in goal.
Diamonds started fizzing the ball about, bringing Underwood and McElhatton more into play, and it was not long before a great Underwood cross was met by the head of Colin West, who levelled the scores.
Slough, to their credit played the ball about well, Lee Endersby in particular looking useful. The Rebels probably had the better chances in the first half, and at times made Diamonds look very ordinary, and the two sides went into the interval all square.
Diamonds edged the second half and probably deserved West’s headed winner. The pitch cut up badly as the match wore on, getting heavier by the minute. The visitors' fitness levels started to tell, and their ability to create space down the flanks worked well, always looking dangerous on the break.
Rushden missed a few chances to make the game safe, Mark Cooper missing the easiest after being set up by the unselfish West, who could have completed his hat-trick.
Rushden & Diamonds Line up
Feuer, Wooding, Bradshaw, Wilson, Rodwell, Cooper, McElhatton, Butterworth, DeSouza, West, Underwood. Subs: Brady, Whyte, Heggs, Corry, Hamsher.