The Tigers had secured a remarkable final-session 17-run victory over South Australia in Hobart on Thursday to overtake Victoria in second spot with just one match remaining.

Tasmania’s third narrowest triumph ever, which was brought about by quick Jackson Bird (4-64) clean bowling Redbacks’ tailender Nick Winter in tense circumstances after a magnificent century from Travis Head.

The hosts earlier set South Australia 331 for honours on the final day. 

Adam Griffith’s charges sit on 39.29 points, while Victoria is third with 39.11 leading into Wednesday’s final play-off at Bellerive Oval.

The winner will most likely play ladder-leaders Queensland in the decider at Allan Border Field at the end of this month.

Griffith said the Tigers had played well to be in the position they find themselves in after three bleak seasons down the bottom of the table.

“Four wins is probably a little bit above expectation to where we thought we would be at this stage, so we are really happy with that,” he said.

“The confidence is good and they are enjoying their cricket, which is probably the biggest thing, and that was something that was probably [previously] lacking in the group.

“It’s been a really tight season with all the teams playing some good stuff this year.”

Griffith said he has not spoken about a potential finals appearance with his players just yet.

He said Victoria was a dangerous proposition with names like Glenn Maxwell, Marcus Harris, Cameron White, Chris Tremain and Scott Boland all featuring high on this season’s statistics sheet this season.

“We’re on a journey with the directions we want to head in and we’re heading in that direction, which is a really pleasing thing,” he said.

“We need to play well next week before we can even look at the final.

“Our batting group, apart from the little hiccup in the second innings in this game, have been outstanding… and the bowling group is managing to take 20 wickets a game.”

Griffith said Sam Rainbird, Tom Rogers and Bird, who took six wickets on his return from a hamstring injury, are right up their with the nation’s best bowlers.

“It's pretty handy having a Test cricketer [in Bird] to run in and take those wickets,” Griffith said.

“He was really good towards the end, and bowled well.

“He was a bit rusty with the hamstring injury, so he will take some confidence from that game.”

Victoria is coming off a narrow win over NSW with Wednesday’s Scott Mason Memorial showdown to start at 10.30am.