The Dolphins are in ninth spot, two points behind the eighth-placed Sydney Roosters heading into the final round.
Bennett's South Sydney play arch-rivals Sydney Roosters on Friday night at Accor Stadium. A win for the Rabbitohs will keep the Dolphins in with a shot of finishing eighth if they can beat Canberra in Redcliffe on the final day of the regular season.
The Dolphins will also need a combined for-and-against margin of 16 points or more to go their way.
The Rabbitohs will also be salivating over the prospect of potentially ruining the Roosters' finals hopes.
"We'd love that result to go our way, but we have to prepare to play Canberra and play really well," Dolphins coach Kristian Woolf said.
"If we are playing for something more, great. The performance is just as important either way."
The Dolphins led 18-0 at Suncorp Stadium on Sunday afternoon, but the two teams went to halftime locked at 18-18.
The match followed the pattern of the previous two encounters at the same venue. In 2023 the Titans led 26-0 before the Dolphins won 28-26 in the equal biggest comeback in NRL history.
Last year the Dolphins went to a 14-0 lead before the Titans prevailed 21-14 to put a spear in the hosts' finals hopes.
The home side suffered a blow at the break on Sunday, with star centre Hamiso Tabuai-Fidow staying in the sheds with blurred vision after a poke in the eye.
Versatile Kurt Donaghoe switched to left centre initially and found a silky pass to put winger Tevita Naufahu in for his second try.
Pocket-rocket fullback Trai Fuller burst through and co-captain Isaiya Katoa finished for a 30-18 lead.
A long-range try started and finished by Titans star AJ Brimson brought the margin back to six.
Dolphins playmaker Kodi Nikorima scored, Tabuai-Fidow came back on and the hosts held their breath when Titans half Jayden Campbell scored off a bomb.
Woolf's men hung on in a cliffhanger that ebbed and flowed.
"I loved the way we started. We got a little bit loose before halftime … but I really liked the way we came out in the second half and got back to business," Woolf said.
"Trai did some great things. He is just so brave and the rest of the team love playing with him.
"Kurt is exceptional. He's been pretty crook all week and hasn't really trained with the group. To play the minutes he did, get shifted around and then the try he set up in the centres was great skill ... he's a great player for us."
Fuller powered over early before Nikorima, influential in the first try, sent Naufahu in with a pinpoint pass.
Fuller rocketed through to set up Tabuai-Fidow under the sticks to make it 18-0 inside 13 minutes.
The Dolphins then fell into bad habits and paid the price.
Titans centre Brian Kelly swooped on a Brimson kick.
Lock Chris Randall threw a pass that went forward to winger Jaylan De Groot for a try to narrow the gap. Veteran Kieran Foran then scored on the cusp of halftime to level.
The Titans, still in last place, could move off the bottom and avoid the wooden spoon in Des Hasler's last game as coach next week if they can beat Wests Tigers at Robina.
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