The former Callington Community College pupil, who will turn 23 on Friday, crossed in the second half at Priory Lane when Rosslyn Park threw the ball straight to him at a line-out on their own line.
It might not have been the hardest try to score, but Judge was delighted to get his name on the scoresheet.
It was only his second National League try, having managed just one in 25 games for Launceston last season.
“I was absolutely buzzing,” said Judge. “It was my first try for Plymouth.
“To be fair, it was quite lucky as the ball came straight to me, but I’ll take it any day. There was a bit of opposition and I still had to score it. I’m pleased.”
Judge was also pleased that Albion were able to hold out and claim the victory at Rosslyn Park, which extended their winning run to five matches.
The city side led 18-6 at half-time but the home club could have snatched a draw with the last kick of the game after scoring an injury-time try, while Albion were a man down, but former Plymouth development player Tom Whelan missed the conversion.
“To give credit to Rosslyn Park, they kept going and kept going,” said Judge.
“I guess we were pretty fortunate they missed the kick at the end, but we stuck in it throughout the game and ultimately that effort saw us come away with a win.
“We are very pleased. Obviously, we had a great win at Hartpury and we knew we had to come back and perform again this week.
“We are very pleased to have got five wins from five. We’ll look forward to Hull now and try and build on our mistakes from Saturday and try and keep our momentum going.”
Saturday’s match was played on an artificial surface and in heavy rain.
Judge said: “The ball was pretty slippery, but the pitch was not as slippery as I thought it was going to be. I’ve never played on 4G before so it was a new experience. It was okay.”
Albion will return to Brickfields this Saturday for the first time in four weeks when they entertain Hull Ionians.