Nottingham's World No 38 Holt captured a PTC title for the second time by winning seven matches at the World Snooker Academy in Sheffield, beating the likes of Mark Selby and John Higgins to get to the final.
Breaks of 75 and 58 put him 2-0 up on Dale, and though Dale drew within a frame at 3-2, Holt wrapped up the result in frame six with a run of 44.
"I'm never far away from being very good or very bad," said 33-year-old Holt, who won PTC12 last season but has never been beyond the quarter-finals of a full ranking event. "My attitude has been terrible recently but it was a lot better here. Maybe the shorter matches suit me because there's not enough time to lose my head.
"I'm good enough to do well in any event but my attitude has stunk at times. I haven't achieved what I should have done - I've been in the top 32 but that's not what I turned pro for.
"I've said it before, but if I can keep a consistent temperament then I've still got time to achieve a lot in the game," added Holt. "This win is for my dad, as well as my manager Dave Bramley who has stuck by me."
The PTC is a series of 12 short events, with the top 24 on the final Order of Merit going through to the Grand Final in March, providing they have played in at least three domestic events and three overseas. The next tournament is PTC11 in Sheffield from December 17-19.
Results (last 16 onwards)
Last 16
Neil Robertson 3-4 John Higgins
Rory McLeod 1-4 Joe Perry
Chris Norbury 3-4 Jamie Cope
Ben Woollaston 1-4 Michael Holt
Dave Harold 4-2 David Grace
Graeme Dott 3-4 Stephen Lee
Ricky Walden 2-4 Dominic Dale
Liang Wenbo 4-3 Ken Doherty
Quarter-finals
John Higgins 4-3 Joe Perry
Jamie Cope 0-4 Michael Holt
Dave Harold 1-4 Stephen Lee
Dominic Dale 4-3 Liang Wenbo
Semi-finals
John Higgins 2-4 Michael Holt
Stephen Lee 2-4 Dominic Dale
Final
Michael Holt 4-2 Dominic Dale
