in 2015, he began trying several different disciplines for which he had trained less for in the past. on may 17, 2015, at the elite meeting in montgeron, tsenov won the men's 3000 meters. on june 10, 2015, he won the 1500 meters in bulgaria's national championship. he fulfilled the 2016 summer olympics qualifying standard for the 3000 meters steeplechase on may 29, 2015.