Plymouth Raiders beat Worcester Wolves 193-172 on aggregate to make it through to the BBL Cup final.
The aggregate win was set up by a 111-83 first leg victory in Worcester when Jeremy Bell hit a season-high 33 points and Lehmon Colbert scored 27.
Plymouth lost Sunday's second leg at the Pavilions 89-82, despite 23 points from Michael Ojo and 22 from Colbert.
But the Raiders will meet Newcastle Eagles in the final at Birmingham's National Indoor Arena in January.
"To come to an away court and get any kind of win is good but to win by 28 points is an excellent performance," Plymouth coach Gavin Love told BBC Radio Devon.
"It's fantastic, it's only my second year of coaching and to reach to a final so soon is excellent."
And Love said the large first-leg win meant his side relaxed in the home game.
"We knew we'd won the series and that was the most important thing and I think we took our foot off the pedal a little bit.
"We knew that it was going to be tough, but the guys knew what they had to do and that was to win the series."
Worcester head coach Paul James said he was pleased his side got the consolation of a win in Plymouth in the second leg at the Pavilions
"It was about coming down here and salvaging a little bit of pride and showing we could match them...so I am delighted we won the game although we haven't won the match," he said.
"I'm really proud of the guys and the way they stuck to the task as we could have come down here and buried our heads and it would have looked really ugly.
"But we didn't do that and they should be proud of themselves," James added.