The Tigers reached their 235-run target late on Thursday after looking out of the contest earlier in the day following a 64-run final wicket stand between WA fast bowlers Joel Paris and Simon Mackin.

Paris hit a career-best 93 and Mackin survived for 69 balls as WA pushed their second innings out to 253.

Tasmanian youngster Nathan Ellis eventually rattled the stumps of Paris to end the stubborn 26-over partnership before taking 6-86.

Despite the final result WA managed some stellar individual performances throughout the game with Cam Green becoming the first batter to three Shield centuries this summer after his unbeaten 158 in the first innings.

Paris also cleaned up with the ball, taking 5-90 in the first which included putting an end to Beau Webster's seemingly unstoppable 187, then adding another two scalps in the second innings.

The loss leaves WA in a precarious position for finals with two home games remaining.