[2] At the 1896 Summer Olympics in Athens, Grisel competed in five different events, four in athletics and one in gymnastics.

[5] He also competed in the discus: there is no no record of the distance that he threw, but he was not among the top four of the nine participants in the competition.

[6] On April 7, Grisel returned to the Panathenaic Stadium to compete in the long jump.

Again there is no official record of his result,[7] but unofficial reports say that he jumped 5.83 metres and finished in fifth place.

[8] After a two day break, Grisel competed in the parallel bars gymnastica event;, Alfred Flatow (gold) and Louis Zutter (silver) were the only athletes awarded medals, and there is no official record of the results achieved by the other sixteen gymnasts involved.