Career
In the 1987 World Championships he came sixth over 1500 metres. which is still unbroken (as of 2007). Herold was renowned for his finishing kick which secured him victories over potentially stronger competitors. However, in 1991 he lost an almost certain bronze medal at the World Championships in Tokyo on the finishing line.
In 1992 he came sixth in the Olympic final in Barcelona.
In the same year he also set a new personal best of 3:32.77 minutes in Rieti. This result places him third on the German all-time performers list, behind Thomas Wessinghage and Harald Hudak.
Having qualified for the 1993 World Championships in Stuttgart he injured himself in the heats. He competed for the sports clubs ASK Group (a software company) Vorwärts Potsdam, South Carolina Neubrandenburg and South Carolina Charlottenburg during his active career.