2012–2015: First professional matches Polmans turned pro in 2012 and ended the year with a ranking of 1813. Over the next three years, he played predominantly in the
ITF Men's Tour. The Aussie won his first title with
Steven de Waard at the Australia F9, a Futures-level event, in 2014. The pair won five more titles the next year. Polmans reached the second round of qualifying in the
2015 Australian Open where he defeated
Jordi Samper-Montaña in the first round before losing to
Tim Smyczek.
2016–2017: Ranking increase Polmans commenced 2016 with a singles ranking of 841. He lost in the first round of
qualifying for the
2016 Australian Open. In June 2016, Polmans won his first singles title in
Mozambique F1. This was followed by another title the following week. Over the next 3 months, Polmans reached a further 6 finals, winning 2 including one in Alice Springs. In November, Polmans reached his first
ATP Challenger Tour final in
Canberra. He lost to compatriot
James Duckworth in straight sets. He ended 2016 with a ranking of No. 226. Polmans commenced 2017 at the
Happy Valley Challenger where he lost in round 1. Polmans lost in round 1 of
2017 Australian Open – Men's singles qualifying. In the
doubles, Polmans paired with
Andrew Whittington where they reached the semi-final. Polmans made the 2nd round of the
2017 French Open – Men's singles qualifying. Polmans received a wildcard entry to the
2017 Croatia Open, marking his first singles main draw appearance on the ATP World Tour. He faced
Alessandro Giannessi but lost in round 1. In July, Polmans made the main draw of the
Citi Open in Washington as a lucky loser, losing to
Jared Donaldson. Polmans ended the year on the Challenger circuit with his best result being a semi-final appearance at
Canberra. Polmans ended 2017 with a singles ranking of No. 323 and doubles ranking of No. 70.
2018: First challenger title In February, Polmans won his maiden challenger title at the
2018 Launceston Tennis International. In April he lost to
Noah Rubin of the US in the finals of the
2018 Tallahassee Tennis Challenger in Florida. In May and June, Polmans lost in the first round of
French Open qualifying and
Wimbledon qualifying. He continued to play across the Challenger tour of Europe. In August, Polmans lost in the
final round of qualifying for the US Open. In October, Polmans partnered
Jeremy Beale to win his first doubles challenger title at
Traralgon.
2019: Major debut at Australian Open, Challenger title, first ATP win Polmans was awarded a wildcard into the
2019 Australian Open. He lost in the first round to USA's
Denis Kudla in five sets 5–7, 1–6, 6–2, 6–3, 6–2. In March, Polmans won his second ATP Challenger title when defeating Italy's
Lorenzo Giustino 6–4, 4–6, 7–6(4). In July, Polman qualified for the main draw of the
Washington Open. Polmans defeated
Malek Jaziri for his first main draw win on the
ATP Tour. In August, Polmans lost in the first round of
2019 US Open – Men's singles qualifying.
2020: First two Major wins, US and French Open debut In January participating again as a wildcard, Polman won his first main draw singles match at the
Australian Open over
Mikhail Kukushkin. Polmans also won his first
French Open match as a lucky loser against
Ugo Humbert. Having reached a career-high singles ranking of World No. 116 on 12 October 2020, Polmans ended 2020 with a singles ranking of World No. 124 and a doubles ranking of World No. 130.
2021: Australian Open semifinal mixed doubles, Wimbledon singles debut For the third year in a row being awarded a wildcard, he lost in the first round of the
Australian Open to
Márton Fucsovics but he made the semifinals of the
2021 Australian Open – Mixed doubles with
Storm Sanders. He qualified for the first time in his career into the main singles draw of the
2021 Wimbledon Championships. Polmans defeated former quarterfinalist
Lu Yen-hsun in the first round. Polmans lost to 19th seed
Cristian Garín in round two. In July, Polmans reached the quarterfinal at the
Kitzbühel Open in doubles partnering
Pedro Martínez. Polmans ended 2021 with a singles ranking of World No. 196 and a doubles ranking of World No. 103.
2022–2024: Hiatus, substantial rankings drop, back to Challenger tour Polmans lost in the second round of qualifying at the
2022 Australian Open. He also lost in the first round of qualifying at the
2022 US Open. He won his seventh doubles Challenger title in Korea with
Max Purcell and returned to the top 300 in doubles jumping up 345 places to world No. 297 on 24 October 2022. Polmans was disqualified in the last round of qualifications at the
2023 Rolex Shanghai Masters for hitting a ball at the umpire in frustration and subsequently lost all the rankings points and prize money. Polmans made back to back semifinals at the
2023 Australian Open – Mixed doubles and the
2024 Australian Open with
Olivia Gadecki as a wildcard pair. In
singles, at the same tournament, ranked No. 154 he also received another wildcard for the main draw and his fourth overall but lost in straight sets to compatriot
Alexei Popyrin. ==Coaching==