Sydney Marathon has around 320 metres of cumulative elevation, more than any of the eight Abbott World Marathon Majors, making sub-two-hour times nearly impossible.
Why it mattersSydney's elevation explains why its records lag far behind other majors and shapes which elite runners and strategies compete.
AustraliaAustralia now hosts one of the world's toughest marathon courses, with 500,000 spectators expected to line the route Sunday.
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