The Pleasanton Fairgrounds Racetrack at the Alameda County Fairgrounds is the oldest remaining horse racing track in America dating back to 1858, when it was founded by the sons of the Spaniard Don Agustin Bernal.

Modern flat races are run over distances ranging from 440 yards (400 m) up to two and a half miles, with distances between five and twelve furlongs being most common.

The Kiplingcotes Derby is the oldest [horse race] in England, having taken place every year since 1519. Kiplingcotes is a small hamlet close to Market Weighton, in the East Riding of Yorkshire.

It is run every spring. The course takes in four miles of arduous farm track and field. The Derby starts near to the former Kiplingcotes railway station and finishes at Londesborough Wold Farm.

From Wikipedia