Manuel Eitel joined SSV Ulm 1846 in 2013, where he trained under coach Christopher Hellmann. In 2014, he set a new German U18 decathlon record in Bernhausen, surpassing the previous record held by Jan Felix Knobel.
USA until 02 February 2020 – eligible to represent Australia in National Representative Competitions (see World Athletics Eligibility to Represent a Member Rule 1.4.2) from 31 July 2020