Regarding the Nature of Land in Athletics.
Evidence Rasas - without obstacles on the track:
- 100m, 200m, 400m, 4x100m.
- 4x400m., 800m, 1500m.
- 3.000m., 5,000 m 10,000.
With proof barriers: - artificial obstructions on the runway:
- 100m, 110m, 200m, 400m hurdles and 3000m steeplechase (steeple-chase).
Rustic evidence:
On roads and varied terrain mostly evidence of "cross-country" and "marathon".
Source: Athletics
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