Vague grew up in the Perth suburb of Kardinya. He played his first game of basketball at the age of seven, starting at the Spearwood Hawks Junior Basketball Club before joining the Cockburn Cougars junior program. He is also a product of the rich basketball program at Willetton Senior High School. He barracked for the Perth Wildcats, idolised the players and dreamt of playing for the club.
Vague made his SBL debut for the Cockburn Cougars in 2013 at the age of 17. He appeared in two games in his first season. He continued on with the Cougars in 2014 and averaged 3.7 points and 2.8 rebounds in 16 games. He also had a three-game stint with the Basketball AustraliaCentre of Excellence in the SEABL midway through the year. Vague joined the East Perth Eagles for the 2015 SBL season. In 22 games, he averaged 18.2 points, 10.0 rebounds and 2.1 assists per game. He was subsequently named the SBL's Most Improved Player. He re-joined the Eagles in 2016 and appeared in all 26 games, averaging 19.0 points, 11.0 rebounds and 3.2 assists per game. Vague joined the Stirling Senators for the 2017 SBL season. In 28 games, he averaged 18.0 points, 8.29 rebounds and 3.18 assists per game. Vague moved east in 2018 to play for the Dandenong Rangers in the SEABL. In his debut for the Rangers, he scored a season-high 33 points. In 19 games, he averaged 15.8 points, 7.7 rebounds and 1.7 assists per game. On 5 March 2019, Vague signed with the Nelson Giants for the 2019 New Zealand NBL season. In his debut for the Giants on 13 April 2019, Vague scored 21 points in a 93–78 season-opening win over the Taranaki Mountainairs. On 7 June, he scored 26 points in a 102–81 win over the Super City Rangers. He appeared in all 18 games for the Giants, averaging 16.8 points, 8.5 rebounds and 2.2 assists per game.
Perth Wildcats (2014–2020)
Following the 2014 SBL season, Vague began training with the Perth Wildcats during the NBL pre-season before earning selection as a development player. He made his debut for the Wildcats on 24 October 2014 at Perth Arena. He received 45 seconds of action deep into the game against the Sydney Kings, a match the Wildcats won 84–63. Vague was active for three more games during the 2014–15 season, but did not appear in any further action. He appeared in six games during the 2015–16 season and was a member of the team's championship-winning squad. He did not appear in a game during the 2016–17 season, with the Wildcats claiming back-to-back championships. In 2017–18, he played in a then career-high 13 NBL games, averaging 1.5 points. On 19 April 2018, Vague signed a two-year deal with the Wildcats, earning elevation to the team's full-time roster after four years as a development player. On 17 January 2019, on his 23rd birthday, Vague made his first career start, recording 10 points, five rebounds and four assists in 25 minutes in a 97–84 loss to the Adelaide 36ers. In March 2019, he was a member of the Wildcats' championship-winning team. In March 2020, he was crowned an NBL champion for the fourth time in five years.
Kagawa Five Arrows (2020–present)
In July 2020, Vague signed with the Kagawa Five Arrows of the Japanese B.League for the 2020–21 season.
National team career
In December 2013, Vague won a silver medal with Australia at the FIBA Oceania Pacific Championships in New Zealand. In December 2014, Vague won a gold medal with the Australian Emus at the FIBA Oceania Under 19 Championships in Fiji. In April 2015, he was named in a 16-man Australian Emus squad in the lead up to the 2015 FIBA Under-19 World Championships in Greece, but ultimately missed out on the final squad. In June 2017, Vague was named in the 12-man Emerging Boomers squad for the 2017 Summer Universiade in Taiwan. The team consisted of players under the age of 25 who were completing university studies.
