Lachlan Maranta

In Round 14 of the 2012 NRL season, Maranta made his NRL debut for the Brisbane Broncos in against the Sydney Roosters on the wing, scoring a try and making 2 line breaks in the 40-22 win at SFS.[6] In June 2012, Maranta was named at fullback in the Queensland Residents side against New South Wales Residents in the 20-14 win.[7][8] Maranta finished the 2012 NRL season being named the Brisbane Broncos Rookie of the Year with him playing in 7 matches and scoring 2 tries his debut year in the NRL.

Maranta finished the 2013 NRL season with him playing in 18 matches and scoring 5 tries for the Broncos.

On 30 May, Maranta re-signed with the Broncos to the end of the 2016 season.[9] He finished the 2014 NRL season with 5 tries from 17 matches.

On 21 January 2015, Maranta was named in the Brisbane Broncos 2015 Auckland Nines squad.[10] In Round 19 against the Wests Tigers, he scored a hat-trick in the Broncos' 42-16 win at Suncorp Stadium.[11] He finished off the 2015 season as the Broncos' highest try-scorer with 15 tries in 20 matches.[12] On 15 December, Maranta was named on interchange bench for the World All Stars to play against the Indigenous All Stars in 2016.[13]

On 19 January, Maranta suffered a massive setback before the season after he fractured a bone in his wrist at training, robbing him of playing in the 2016 All Stars match.[14] He was expected to miss about 10–12 weeks of football but made an early return in Round 4 in the grand final rematch against the North Queensland Cowboys in the Broncos' golden point 21-20 victory.[15][16] After the match, Maranta spent his time playing in the Queensland Cup for the Norths Devils but succumbed to a knee injury and was ruled out for 8 weeks.[17][18] Maranta returned for the Broncos for the second time in Round 12 against the Wests Tigers, scoring a try in the 19-18 loss.[19]

In August, Maranta signed a 2-year deal with the Queensland Reds in the Super Rugby, switching over the 15-man code where he played the sport during his high school years.[20] After the signing was announced, Maranta was subjected to criticism by former Wallabies player Greg Martin, labelling Maranta as the worst signing he has ever seen in his life. Martin also said on the Triple M Breakfast Radio Show, “If the Reds want to get a player who the Broncos ... sorry ... but if Wayne Bennett is prepared to get rid of his godson and his former PA’s son and Brett Plowman’s son in Lachie Maranta. If he’s prepared to get rid of him, that would indicate that he’s a crap player. The Reds immediately snapped him up and crowed about it. That is the worst signing I’ve ever seen. It’s the last thing the Reds need because there is something that Queensland Rugby has got everywhere through youth rugby, through schools rugby, is exciting young wingers and we pick up a dud who the Broncos want to get rid of because he’s had a knee injury".[21][22] Maranta finished his last season with the Broncos with him playing in 8 matches and scoring 3 tries.

On 13 December 2018, Maranta signed a contract to join St. George Illawarra for the 2019 season.[23] He made his debut for St George in round 14 against Manly-Warringah at Brookvale Oval. Maranta made one further appearance for the first team during the 2019 NRL season but spent the majority of the year playing for the club's reserve grade side which won the minor premiership in the Canterbury Cup NSW. In November 2019, it was announced that Maranta had been released by St George.[24][25] It was reported on November 26 that Maranta had signed with Queensland Cup team Wynnum Manly Seagulls for the 2020 season, marking his return to Queensland.[26][27]