Many Commonwealth Games records were set over distances using imperial measurements, such as the 100-yard dash, and (as a result of metric standardisation in 1966) many records belong to defunct events. The oldest record is George Bailey's 9:52.0 minutes in the seldom used men's two mile steeplechase, which was set at the inaugural Games. The two longest lasting records in current events were both set at the 1974 edition of the Games: Englishman Ian Thompson's record of 2:09:12 hours in the Marathon, and Tanzanian Filbert Bayi's record of 3:32.16 minutes in the 1500 metres, which was also a world record.