Rodriguez booked his place in the prestigious final, which will take place on May 22 – alongside the Premier League Play-Offs – by coming through the last 64 in Reading on Saturday.
The Austrian youngster began his charge with early victories against John Seagrave and Tom Sykes as he dropped just a single leg in his first two matches.
The number two seed then defeated Ben Songhurst 6-3 and Dean Reynolds 6-2 to reach his decisive semi-final, where he saw off another recent addition to the ZWA team, Kurt Parry – seeing off the Welshman 6-3.
“I have no words to describe how I feel – this is my dream and it has come true. To be on the big stage is a dream for me,” said an overwhelmed Rodriguez. “It’s a big step for me.
“Both Keegan and I know that we can play good darts, and the best player on the day will win. I’ll keep practising now and we’ll see what happens next month.”
Not only does Rodriguez’s place in the final assure him a spot in November’s Grand Slam of Darts but victory would see him reach the World Championship in December.
Parry, who hit a nine-darter in last year’s World Youth Championship, had beaten Andrew Ryan, Lewis Venes, Cain Unwin and Reece Robinson on the day, and took home £2,500 to soften the blow of his semi-final defeat.