Rangers shooting guard Reuben Te Rangi was matching Wesley point for point however, with 15 first-half points including three triples. With Tom Garlepp hitting tough shots and Jason Cadee attacking well, the Rangers were doing enough to stay in the contest, with the Sharks leading 49-44 at the half.
The Sharks looked to stretch out their lead in the third period but Te Rangi kept the Rangers in it with a mix of triples and effective off-the-dribble attacking, keeping the deficit within double digits for the entirety of the third quarter.
Foul trouble struck the Sharks in the fourth, with Todd Blanchfield, Tai Wesley and Adrian Majstrovich all on four fouls during the final quarter, but the Rangers couldn't take advantage, with lockdown Southland defence shutting down Ranger sets.
A Blanchfield pull-up and Bailey and-one gave the Sharks their first double-digit lead with five minutes remaining, and from there they coasted home.
Wesley ended with 24 points and nine rebounds, Majstrovich had 18 points and 16 rebounds, Kevin Braswell went 10/10 from the line to notch 23 points and Bailey had 14 points and eight rebounds.
For the Rangers, Te Rangi had 22 points and nine rebounds, while Cadee and Garlepp added 15 apiece.
The Sharks will take on the winner of the second semifinal between the Nelson Giants and Wellington Saints in the final tomorrow at 7.00pm.
Niall Anderson is staying in Wellington courtesy of Bay Plaza Hotel