Meanwhile, the hosts have increased their chances of survival after claiming 12 points from the last 21 available, winning three of their last four matches.
Braga were unable to build on last Wednesday's 2-1 win over Boavista, as they narrowly lost 1-0 at home to league leaders Sporting Lisbon on Sunday.
The visitors were reduced to 10 men just 18 minutes into the match when Goncalo Inacio was shown his second yellow card, however the hosts were unable to take advantage with the extra man.
Braga dominated the game with 71% possession and 17 shots on goal, but it was Sporting who broke the deadlock in the 81st minute when Matheus Nunes rifled in from a tight angle, claiming all three points for his side and maintaining their unbeaten league record.
The Archbishops now sit five points behind Benfica, who currently occupy the final Champions League position, and with only five Primera Liga matches left to play, their chances of securing a top-three spot are seemingly slipping away.
However, Benfica are still to face Porto and Sporting in the coming weeks so Carlos Carvalhal will be hoping that the Eagles can drop points in those two clashes, potentially boosting Braga's chances of claiming a Champions League place for next season.
Braga have already beaten Maritimo this season, winning 2-1 on home soil in January, and another victory on Thursday would see them do the double against them for the first time in five years.
An impressive run of three wins from their last four matches has given Maritimo a massive boost in their quest to avoid relegation.
1-0 victories against Farense and Rio Ave earlier this month were followed by another win away at Boavista by the same scoreline on Sunday.
Ali Alipour scored the only goal of the game in the 63rd minute to seal all three points for Julio Velazquez's side, who now sit in 15th place and two points above the dropzone heading into the final five matches of the season.
Velazquez replaced Milton Mendes as head coach in March with the Verde-Rubros rooted to the foot of the Primera Liga table. Since then, the 39-year-old has managed to instil belief into his players, who have claimed four wins from seven games.
The last time Maritimo played in the second division of Portuguese football was back in the 1984-85 campaign. The task is not yet over for Velazquez, but their chances of survival are looking much better now and another win on Thursday could move them as high as 11th in the table.
Maritimo forward Rodrigo Pinho was not in the squad against Boavista after suffering another setback with his ankle injury.
The 29-year-old, who has scored nine times in the top flight this season, is unlikely to feature on Thursday, which could see Alipour and Rafik Guitane keep their places up front.
Velasquez may decide to name the same starting XI that won on Sunday, lining up with a flat 4-4-2 formation.
Forward Andraz Sporar was ineligible for the game against his parent club Sporting last weekend, but is now available to feature on Thursday.
Maritimo possible starting lineup:
Abedzadeh; Winck, Junior, Andrade, China; Costa, Santos, Pelagio, Tagueu; Guitane, Alipour
Braga possible starting lineup:
Matheus; Tormena, Silva, Sequeira; Esgaio, Fransergio, Castro, Galeno; Horta, Gaitan; Sporar
We say: Maritimo 1-1 Braga
Securing all three points on Thursday is crucial for both Maritimo and Braga if they are to achieve their respective targets this season.
Neither side will want to lose this clash so a cagey encounter is expected, and with little to separate the two sides, a score draw could be on the cards at the Estadio dos Barreiros.