Muhammad Ziyad first came to prominence at the 2012 LondonParalympic Games, winning the bronze medal with a throw of 15.21m in the men's F20 shot put event.[5] He won Malaysia's only gold medal at the 2013 World Para Athletics Championships in Lyon, and was recognised for his achievements as the National Paralympian Sportsman of the Year at the Anugerah Sukan Negara.[6]
At the 2016 Rio Paralympic Games, Muhammad Ziyad again represented Malaysia and won the gold medal in the shot put event, setting a new world record of 16.84m. At the world championships in London the following year, he surpassed himself to again set the world record, throwing a distance of 17.29m.[7]
He won silver at the 2024 Paralympic held in Paris with a record of 17.18m.[8]
At the 2020 Tokyo Paralympic Games, Muhammad Ziyad represented Malaysia and won the gold medal in the shot put event, again breaking the world record with a 17.94 m throw during his third round in the final.[9] He had initially arrived at the call room three minutes past his allocated time, but was allowed to compete. However, following an appeal from the Ukrainian team, both he and two other competitors were disqualified, invalidating the record. The ruling was upheld despite the athletes arguing that they did not recognise the relevant announcement as it was in a language they did not understand.[10] Following his disqualification, Ukraine's Maksym Koval was awarded the gold medal and the world record.[11] The decision was met with outcry, particularly from Malaysians. The hashtag #Ziyad trended on Twitter, with anger directed towards Koval and the IPC.[12][13]