Michael Van Gerwen was crowned Premier League champion for a fourth successive year after seeing off Daryl Gurney and Rob Cross at London's O2 Arena.
The Dutchman seemed below-par against Gurney in the semi-final before eventually prevailing 10-7 and he was forced to weather a mini-slump in the showpiece.
Cross rallied from 5-1 down in the final but missed three darts at double to level at 5-5, and Van Gerwen made full use of the let-off as he stormed to an 11-5 victory to continue his stranglehold in this competition.
Van Gerwen was delighted to seal his fifth title overall as he reflected on the exertions of a tournament which started in early February and has seen the competitors play at least once a week since then.
He told Sky Sports: "What a phenomenal title to win again for the fifth time now, it's been an amazing tournament.
"(It's been) a difficult tournament, I have to tell you the truth. It's really tough, you have to be good for all those weeks. We played for 17 weeks, including this night.
"You have to prepare yourself constantly for every game, you have to travel week after week. It's hard but when you are able to win the trophy it makes everything good.
"(Cross) has been chasing me all the way in the tour. I managed to get to the top of the table and now I met him here in the final as well, so he was really annoying me but I'm really glad it was not enough."
Van Gerwen edged out Cross to finish top of the league but he seemed out of sorts against Gurney, averaging 96.48.
Watched on by compatriot Robin Van Persie, the former Arsenal and Manchester United striker, Van Gerwen trailed 6-5 against his Northern Irish opponent before winning four legs in a row en route to booking his place in the final.
Cross was beaten by James Wade last week - which meant he surrendered top spot to Van Gerwen in the league stage - but rallied from a 3-1 deficit to triumph 10-5 and seal a meeting with Van Gerwen.
In a rematch of last year's semi-final, Van Gerwen won five of the opening six legs to subdue the crowd but Cross narrowed the deficit.
Cross, who was succeeded as world champion by Van Gerwen earlier this year, missed two darts at double 18 and then one at double nine to level at 5-5 before the break.
From there, Van Gerwen composed himself and took out 130 to secure his latest title.
The Englishman said: "I go in 5-5 it's a different game. I go in 6-4 and to be honest I cost myself there and it was all Michael's and he played phenomenal. Fair play to him, he deserves it but I will get him.
"Michael is having his prime now and most deserved because he's phenomenal. I've not had mine yet so hopefully we can get a little bit more out, keep going and I'll be better."