Career

Diering posted his record of 2:06.85 to earn a bronze in the 200 m breaststroke at the 2008 FINA World Short Course Championships in Manchester, England. Diering qualified for the men"s 200 m breaststroke at the 2008 Summer Olympics in Beijing, by breaking a new South African record and clearing a FINA A-standard entry time of 2:11.88 from the national championships. Diering lowered his African record to 2:10.39 to take an eighth spot for the semifinals in the preliminary heats, just 0.11 of a second ahead of his teammate Neil Versfeld.

Followed by the next morning"s session, Diering failed to qualify for the final, as he finished his semifinal run in twelfth place with a time of 2:10.21.

Shortly after the Olympics, Diering edged out Tunisia"s Oussama Mellouli by nearly two seconds to claim the 200 m breaststroke title at the African Swimming Championships in Johannesburg with a time of 2:16.00.