Makin was born in
Haverfordwest, Pembrokeshire. He played squash at Aberdare Junior Squash Club under coaches Bob Gould, Clive Roberts and Dave Cope, and represented Wales at Under-13s level in 2007. He left Aberdare at 18 and, forgoing university, trained at West Warwickshire Club under the guidance of Rob Owen until parting ways to become independent. He won the Kent Open in 2017, beating Joshua Masters in straight sets, and the Tring Open in 2018. He reached the semifinals of the
men's singles squash competition at the
2018 Commonwealth Games, losing out to
Mohd Nafiizwan Adnan in the bronze medal match. Makin qualified for the
2018 British Open Squash Championships where he lost in the first round to
Mohamed Abouelghar. He beat the world number one,
Mohamed El Shorbagy, to reach the quarterfinals of the Channel VAS Championships in October 2018. Makin won a bronze medal at the
2019 Men's World Team Squash Championships after reaching the semi-finals, where Wales lost to eventual champions Egypt. In February 2022, he was ranked number 8
in the World and 1 in Wales. At the
2022 Commonwealth Games in Birmingham, Makin was selected to represent
Wales, and won a silver medal in the Men's Singles. In 2024, Makin won his second
British National Squash Championships, the first being achieved in 2021. In October 2024, Makin won his 7th and 8th PSA titles after securing victory in the
Silicon Valley Open and
Pittsburgh Open during the
2024–25 PSA Squash Tour. In June 2025, he reached the semi final of the
2025 Men's British Open Squash Championship for the second consecutive year, losing to
Mostafa Asal but shortly afterwards won the
PSA Squash Tour Finals in Toronto to record his greatest feat to date. Also in 2025, Makin won his third
British National Squash Championships title, defeating
Nick Wall in the final. Makin won his 10th PSA title in November 2025. == PSA titles ==