Ian Humphreys scored all 16 points for the visitors as the 2004/05 and 2005/06 champions avenged a 39-25 defeat at the hands of the same opposition back in October.
The Irish outside-half pressed his claims for first-team inclusion with a try, a conversion and three penalties as Tigers kept their A League title hopes alive with their third win of the campaign.
Despite his personal haul, Humphreys was keen to praise the younger players who showed their will to win in difficult conditions once again. "The young lads did well, " said Humphreys, who has been a consistently high-scorer in the Premiership's second-string competition over recent years. "Leeds came back into it towards the end but we held out and got the result. It was nice for me personally to come back up here and get a result after being on loan last year but the young lads deserve a lot of credit."
That sentiment was echoed by Ben Herring, who led the side for the third time since his move from Wellington Hurricanes in his native New Zealand. "I'm loving it," said Herring, when asked how he is taking to the captaincy at an English club. "It's good to be involved with these young guys coming through."
A number of first-team squad members gained valuable game time, while some of the most promising members of the academy were given another chance to continue their development at senior level.
Tigers’ next Northern Conference fixture takes place next Monday when they take on Worcester Warriors at Welford Road (kick-off 7pm).
