After winning the World Youth Masters in 2002, hopes for a strong career for McDonald were high.
McDonald took part in the PDC Pro Tour, which was still open at the time, on several occasions, where he once reached the Last 16 phase.
15 years after his last appearance at the UK Open, he celebrated his comeback there in 2022, but conceded a whitewash against compatriot Jamie Clark right at the start.
McDonald's consistent results saw him participate in the 2022 WDF World Darts Championship, where he lost to Dave Parletti in the first round by 1–2 in sets.
[2] During the 2022 Winmau World Masters he advanced to the third round, where he lost to eventual winner Wesley Plaisier by 0–5 in legs.