Danny Wilson saluted his Swindon side for holding their nerve as they drew 1-1 at Crawley in the FA Cup second round.
Robins striker Charlie Austin had swept the npower League One side ahead in the 66th minute with a fine finish inside the penalty area.
But 10 minutes later Matt Tubbs booked a replay for the ambitious Blue Square Premier side with a classy finish of his own.
Wilson knew Crawley would provide a stern test for Swindon and was pleased with the attitude of his players.
He said: "We knew this was a very tricky tie in the first place and it still is. But what we've done is show a lot of mettle. A lot of teams would have gone under at Crawley because they've got a very good side.
"We knew from the minute we got the draw that this tie would be difficult. We did well in the first half, I don't think our goalkeeper had a save to make. "But we're in the draw for the next round and hopefully that will be a real incentive."