Hutcheon, who led by one after opening with scores of 70 and 69, shaved the hole with a birdie attempt at the 17th before converting a knee-knocker for par at the last as he signed off with a 70.
That matched Keogh’s seven-under total after the Woodhall Spa player had stormed up the leaderboard with a best-of-the-day 67.
The first play-off hole was halved in pars before Hutcheon claimed victory thanks to a nice up and down from the left side of the green at the next.
In monetary terms, the win was worth £3,500, but the three-time Challenge Tour winner now has a packed diary for 2022.
First up is a start in next week’s Betfred British Masters at The Belfry while he’s also secured other DP World Tour outings in the BMW PGA Championship, Irish Open, Cazoo Open, ISPS Handa World Invitational, Cazoo Classic and Hero Open.
"I’ve managed to win this a couple of times beforem, but I’m about to enter my 50th year so this was one last final swansong and I’m delighted,” he said.
Hutcheon has made just 100 appearances, 29 of which came in 2000, on the main tour, but his last event was in 2017.
In addition, the seven-time Tartan Tour No 1 has also earned a trip to Africa for the PGA of South Africa PGA Championship while he qualifies automatically for this year’s Great Britain & Ireland PGA Cup team as well.
“It’s a great start to the year – I’ve just got to find some accommodation now for The Belfry,” he added.
“I get to play some of the big tour events now which is a little bit daunting at my age but you know what, as long as I can keep fit and keep flexible, I can still hit the ball reasonably well so I fancy I might be able to make a few cuts.”