Ben Harding has scored only two goals this season but both have produced crucial 1-0 victories, the midfielder grabbing the winner on Saturday as Cobblers edged past Oxford to maintain their promotion push.
Boothroyd said: "Every time we have the bad weather we have lots of people turn up to help us out and when you have commitment like that it's only right that you repay those people.
"To get the three points is terrific although I thought we did our best to give them at least a point in the second half. When you're in front you have to make sure you play the game in their half but there were three or four occasions when we just gave the ball back to them.
"It's a difficult one for me because I wanted to go in there after the game and shout at them but we won so I didn't, I just left them alone. I'll tell them off on Monday. Our goalkeeper was terrific for us and the first-half performance was very good. It's a very good result for us."
Play-off outsiders Oxford had won their last three away games and boss Chris Wilder was disappointed not to have extended that sequence at Sixfields.
He said: "I'm disappointed not to be going away with all three points let alone one. I don't think we deserved to get beaten, especially based on our second-half performance.
"But, as has been the case all season, we've not done it in the final third. We got into some great positions in the second half and I also thought we had the better chances in the first half.
"But we conceded more than two minutes into first-half stoppage time, Andy Whing got took about by Clive Platt and before we know the ball is in the back of the net. We gave it a right go in the second half but for the second week running we've not punished teams. We need players to be brave enough to take a chance.
"We kept going right to the end and that's what we'll do right to the end of the season but we know we've got to win a lot of games now to get into the play-offs. Northampton are a very strong side, especially at home, and we pushed them all the way."
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