He broke his first world record in 1985 with a throw of 22.62 meters.
On 22 May 1988 he became the first person to throw over 23 meters with a throw of 23.06 meters at Chania, Greece.
He won gold for East Germany at the 1988 Olympics in Seoul, ahead of Randy Barnes of the U.S..
The fourth place throw at this competition would have won every previous Olympics in the shot put.
At the 1992 Olympics, he represented Germany, but finished a disappointing fifth.
He left competition afterwards.
Timmermann is the farthest thrower of all time in the shot put using the glide technique.
He also passed 22 metres in 16 different competitions.
His coach was Mr Werner Goldmann who is currently coaching shot put and discus throw in Berlin.
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