Quarter-finals
The evening opened with Dobey comfortably beating Van Duijvenbode 10-5.
Despite only throwing two 180s, the Englishman averaged a score of 94.88 across three darts to book a place in the next round.
Smith then beat Danny Noppert by the same scoreline to set up a semi-final against Dobey.
The other two quarter-finals saw Peter Wright beat Jonny Clayton 10-6 and eventual finalist Cross shock Michael van Gerwen with a 10-7 victory.
Semi-finals
Dobey beat world number one Smith 11-7 to book his place in the final, averaging a score of 95.05 compared to Smith's 90.02.
Despite winning the World Championships earlier this year and impressing in the early rounds of the Masters, 'Bully Boy' Smith was unable to bring any momentum into the final day and crashed out in the semis.
Cross was victorious in the other semi-final, edging past Wright 11-10 - with his opponent missing three match winners in the final leg.
Although pushing Cross all the way, Wright failed bounce back from his World Championships disappointment - where he was eliminated in the round of 16 by Kim Huybrechts - and didn't make the final.
Final
The final match of the night saw Dobey beat Cross 11-7 and claim his maiden televised darts title.
He averaged 94.05 and hit four 180s to round off an incredible evening for the Englishman.
Shortly after his win, Dobey was announced in the 10-man line up for the Premier League competition that will take place over the next 17 weeks.
