Wheelchair racing superstar Madison de Rozario has capped an emotion-charged few weeks with a dominant victory in the Sydney Marathon.

Just days after returning home from the Paris Paralympics, the 30-year-old crossed the finish line in 1 hour, 54 minutes and 10 seconds, more than a quarter of an hour ahead of her closest challenger, fellow Australian Christie Dawes (2:09:18).

De Rozario rode an emotional rollercoaster at the Paris Paralympics.

Only hours after carrying the Australian flag at the opening ceremony, she learnt her father Ray had died.

After debating whether to return straight home, De Rozario made the call to remain in Paris, where she won silver in the marathon and bronze in the 5,000m.

The elite able-bodied events at the Sydney marathon on Sunday were dominated by runners from traditional long-distance running powerhouses Kenya and Ethiopia.

Brimin Misoi won the men's race in 2:06:18, well ahead of ahead of Ethiopian Chalu Gelmiso (2:08:02) and fellow Kenyan Felix Kirwa (2:08:18).

Workenesh Gurmesa (2:21:41) was a runaway winner of the women's event as she led an Ethiopian sweep of the podium positions.

Gemma Maini was the leading Australian in ninth place in 2:40:45.

The men's wheelchair race was won by Canadian Joshua Cassidy (1:38:35).

The Sydney Marathon is bidding to join the World Marathon Majors series.

AAP