2018 was a breakthrough year for Enekwechi. At the Gold Coast Commonwealth Games, he won a silver medal behind Tom Walsh with a throw of 21.14 m. At the time, this was a personal best for him. Enekwechi then went on to win the shot put title at the African championships in Asaba later in the year. His winning mark of 21.08 m is the African championships record. As African champion he was selected to represent Africa at the Ostrava Continental Cup. In December 2018, he won both the shot put and hammer throw at the 19th National Sports Festival in Abuja. He set a national sports festival record of 20.36 to win the shot put.