'Super-shoes', tumbling world records and the race for a sub two-hour official marathon

'Super-shoes', tumbling world records and the race for a sub two-hour official marathon
'Super-shoes', tumbling world records and the race for a sub two-hour official marathon External link

Marathon world records have tumbled over the past two weeks in the men's and women's races, though the main topic of conversation is not the athletes, but the role played by 'super-shoes'.

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