The reigning champions need to defeat Lakeside Lightning at home, a feat no side has achieved in 2014.
The Lightning are unbeaten at Lakeside Recreation Centre while also being on a 12-game win streak after defeating the Wolves 80-77 at Joondalup Basketball Stadium in game one last Saturday.
It means Joondalup will need to win twice away from home this weekend ” Friday and Saturday ” if it is to win the best-of-three series and advance to the grand final.
In game one, Lakeside managed an 11-point jump on the Wolves in the first quarter but Joondalup clawed the deficit back to two points by half time.
The Wolves outscored Lakeside by a point in a tight final period, but it was not enough.
The Lightning’s Kari Pickens dominated proceedings to take game-high stats in points (26), rebounds (14) and assists (eight).
Joondalup’s Chelsea Burns led the Wolves in scoring (20 points) and rebounds (10).
Shani Amos took a team-high six assists.