The English Schools’ international triumphed in both the under-17 boys’ 400m hurdles and 400m flat.
In windy conditions, he clocked 56.83 seconds to take the hurdles title by more than three seconds.
The following day, he then clocked 50.62 seconds to claim gold in the one lap flat race by more than two seconds.
Maczugowski is ranked second in the UK in the under-17 400m hurdles and has claimed the English Schools’ Championship silver medal and the SIAB International silver medal and has also won the South West Schools’ title and South West Inter-Counties title this season.
At the South of England Championships at Lee Valley, City of Plymouth’s Adam Dingley won a bronze in the under-17 boys’ 100m hurdles event.
Dingley is ranked joint second in the UK rankings and he showed his form in the heats, winning in 13.32 seconds. However, in the final he was just edged out by the UK number one and number three ranked athletes. Dingley had just returned from Mallorca where he had been training hard at the Magaluf Athletics Track.
Their team of Jamie Frost, Charlie Milward, Peter Allen and Luke Hayes took victory by 29 seconds.
They clocked 38 minutes and 37 seconds, with Teignbridge Trotters second and Torbay Tri third.
Plymouth Harriers’ team of Matthew Cundell, Nathan Tall, Chris Hedges and David Morris came fifth, with Erme Valley’s M40 quartet of Ronnie Haynes, Tom Davies, Chris Prall and Tim Steere finishing sixth and second veteran team.
Frost ran the fast leg, clocking nine minutes and 13 seconds.