|Born||February 23, 1993|
Itasca, Illinois, United States
|Education||University of Wisconsin–Madison|
|Height||6 ft 3 in (191 cm)|
|Sport||Track and field|
Zach Ziemek (born February 23, 1993) is an American athlete competing in the decathlon. Ziemek won the bronze medal at the 2022 World Championships in Eugene with a personal best score of 8676  In 2021 he finished 6th at the Tokyo Olympics. He represented his country at the 2015 World Championships in Beijing, where he finished 15th. Ziemek finished 7th in the decathlon at the 2016 Olympics.
At the 2020 United States Olympic Trials (track and field) Ziemek came third behind Garrett Scantling and Steve Bastien (athlete) with an Olympic qualifying score to earn a spot at the delayed 2020 Tokyo Olympics. At the trials, Ziemek set the world record in the decathlon jumping events with performances of 7.74 in the long jump, 2.14 in the high jump, and 5.55 in the pole vault. Only three other men have ever gone higher in an 8000+pt decathlon: Erki Nool (5.60m in his 8628, 1998), Aleksandr Averbukh (5.60m in his 8084, 1997) and Timothy Bright (5.70m in his 8216, 1988)
His main personal bests are 8471 points in the decathlon (Eugene 2021) and 6173 points in the indoor heptathlon (Birmingham 2016).
Ziemek resides in Sun Prairie, WI and trains at his alma mater the University of Wisconsin-Madison. He is coached by Nate Davis, assistant coach for the Wisconsin track & field team. He is married to Victoria Paulson Ziemek.
|Representing the United States|
|2015||World Championships||Beijing, China||15th||Decathlon||8006 pts|
|2016||Olympic Games||Rio de Janeiro, Brazil||7th||Decathlon||8392 pts|
|2017||World Championships||London, United Kingdom||–||Decathlon||DNF|
|2018||World Indoor Championships||Birmingham, United Kingdom||6th||Heptathlon||5941 pts|
|2021||Olympic Games||Tokyo, Japan||6th||Decathlon||8435 pts|
|2022||World Championships||Eugene, United States||3rd||Decathlon||8676 pts|