South Australia is the driest state in the driest inhabited continent, and its running culture is quietly one of the strongest in the country — long-established clubs, a dense weekly race calendar, and an unusual number of events that have been running for decades.
Verus currently lists 284 running races in South Australia — 20 marathons, 50 half marathons, 40 10Ks, 41 5Ks, 34 ultras and 99 at other distances — alongside 52 weekly parkruns and 6 multisport events. Those counts come from the data on this site rather than from a claim about it, and they move as the calendar does.
Adelaide
The city sits on a plain between Gulf St Vincent and the Mount Lofty Ranges, which is an almost ideal running geography: flat coastal running to the west, real climbing twenty minutes to the east, and a green belt of parklands wrapped around the CBD.
The Torrens Linear Park Trail runs from the hills to the sea along the River Torrens — about 30km of continuous shared path, and the backbone of Adelaide training. The coastal path from Semaphore south through Glenelg and Brighton gives flat seafront running. The Adelaide Parklands themselves carry a ring of paths right around the city centre.
The Corporate Cup series runs fortnightly through the cooler months in the CBD and at Mawson Lakes, which is a genuinely useful thing for a visitor: a real, timed, cheap race almost every other week.
The Adelaide Hills
The Mount Lofty Ranges rise straight off the eastern edge of the city. Waterfall Gully to Mount Lofty summit is the standard climb — a steep, popular, roughly 4km ascent that functions as Adelaide's hill session. Beyond it, Cleland, Belair National Park, Morialta and Anstey Hill give a real trail network within half an hour of the CBD.
The Heysen Trail runs 1,200km from Cape Jervis on the Fleurieu Peninsula north to the Flinders Ranges, and its southern sections are the state's long-distance trail running.
The wine regions
The Barossa Valley, an hour north-east, holds the Barossa Marathon Festival in August with distances from 5K to the marathon, and the GoodRunnings Barossa Run in September, which offers an unusually wide spread from 1km to 63.3km. McLaren Vale and the Fleurieu Peninsula carry Coastrek and a scattering of coastal trail events.
Further out
Kangaroo Island holds a marathon, half, 10km and a 50km ultra on the same August day, run through Flinders Chase National Park past the Remarkable Rocks — one of the more distinctive race weekends in the country, and reached by ferry from Adelaide. The Great White Ultra at Port Lincoln in August runs up to 100km in Lincoln National Park, and Ultra Adelaide in July offers 100km and 100 miles closer to home.
When to run
April to November. Adelaide averages a 19.3°C dawn in January at an 11.6° dew point — hot but dry, and more manageable than the east coast at the same reading — and a 9.2°C dawn in July. August is the wettest month at 13.1 rain days, which is unusual: like Perth, South Australia gets its rain in winter.