Sefton was a good pole vaulter already in 1932, while still at Polytechnic High School. He vaulted 13ft5+1⁄4in (4.09m) for a national high school record[1][2] and shared first place in the California interscholastic championship meet.[3] In 1934 he vaulted at least 14ft (4.26m) on four occasions, clearing 14ft1⁄2in (4.28m) at Santa Barbara on April 28,[4] and tied for first at the national junior championships with a new meeting record of 13ft6in (4.11m).[5]
Sefton and Meadows tied at the NCAA meet again in 1936, this time vaulting 14ft1+3⁄4in (4.31m) to improve their meeting record by a fraction of an inch.[7][10] At the national championships George Varoff won with a new world record of 14ft6+1⁄2in (4.43m) while Sefton vaulted 14ft (4.26m) for third.[9] However, the Olympic trials were held separately the following week and there Varoff only placed fourth and was left off the team, while Sefton, Meadows and returning Olympian and USC graduate Bill Graber all cleared 14ft3in (4.34m) to tie for first.[11] It was the first time one university had swept the three Olympic spots at the trials.[11]
Sefton almost failed to qualify for the Olympic final, missing twice at 3.80m (12ft5+5⁄8 in) in qualifying but clearing cleanly on his third attempt.[12] In the final Meadows won with an Olympic record of 4.35m (14ft3+1⁄4in) while Sefton and two Japanese vaulters, Shuhei Nishida and Sueo Ōe, all cleared 4.25m (13ft11+3⁄8in) and had an extra vault as a tie-breaker.[13][14] Sefton lost the jump-off and thus finished out of the medals in fourth place.[14]
1937
Sefton broke the world record several times in 1937. He first improved it in Los Angeles on April 10, clearing 14ft7+3⁄8in (4.45m) to beat Varoff's mark from the previous year.[15] A month later in San Francisco he cleared 14ft8+1⁄2 (4.48m) in a dual meet against Stanford, but Meadows equaled that height later in the same competition.[16]
Finally, in the conference meet on May 29, again in Los Angeles, Sefton vaulted 14ft11in (4.54m), clearing that height on his first attempt.[17] Meadows, despite missing on his first two attempts, again tied the new record on his third and final try.[17] The two were not able to attempt 15ft (4.57m) that day as the standards maxed out at 14ft11in and the bar couldn't be raised any higher.[17][18] Only these last records were officially ratified by the IAAF.[19]
Sefton finally won outright at the NCAA championships, clearing 14ft8+7⁄8in (4.49m) for a meeting record and beating both Varoff and Meadows.[7] It was only in 1951 that Don Laz of Illinois broke that record.[7][20] Sefton also won the 1937 national title with a leap of 14ft7+5⁄8in (4.46m), another meeting record; Dutch Warmerdam, Meadows and Varoff all cleared the same height but missed out on countback.[9][21]
Note 1: In 1888 both the NAAAA and the AAU held championships
OT: The 1920, 1928, 1932, 1992, 1996, 2000, 2004, 2008, 2012 and 2016 championships incorporated the Olympic Trials, otherwise held as a discrete event.
2020 OT: The 2020 Olympic Trials were delayed and held in 2021 due to the COVID-19 pandemic.