2017 World Junior Wrestling Championships in the 66 kg category, Amin Kavianinejad defeated Manish of India 9–0 in the first round. He won the second round against Bek konorbayev of Kyrgyzstan with a score of 2–1. Kavianinejad defeated Shogo Takahashi of Japan 4–2 in the third round and in the quarterfinals to advance to the semi-finals. He lost 5–2 to Alan Mirzoyan of Russia and qualified for the match. Kaviani defeated Abila Khan amziev of Kazakhstan 5–1 in the match and won the bronze medal.[2]
At the 2020 Asian Championships, in the 72 kg category, Amin Kavianinejad defeated Chen Yan-kai of Chinese Taipei 8–0 in the second round after in the first round to advance to the semi-finals. He defeated Ruslan Tsarev of Kyrgyzstan 3-0 and made his way to the final. Kavianinejad defeated Ibragim Magomadov of Kazakhstan 8–0 in the final to win the gold medal.[3]
At the 2021 Asian Championships, in the 72 kg category, Amin Kavianinejad won the second round against Azat Sadikov of Kazakhstan 8–6 after resting in the first round. He defeated Asian champion Ruslan Tsarev of Kyrgyzstan 3–1 in the next round and in the semifinal stage and went to the qualifying round. He defeated Makhmud Bakhshilloev of Uzbekistan 2–1 to win the bronze medal.[4]
At the 2022 Asian Games, in the 77 kg category, Amin Kavianinejad defeated Kim Hyun-Woo of South Korea 9–3 in the first round. He defeated Dilshad amangaldiev of Uzbekistan 5–3 in the next round and advanced to the semifinals. He passed the Liu Roy dam from China with a score of 1-1 and made it to the final. Kavianinejad fought World Champion and Olympic vice-champion Akzhol Makhmudov from Kyrgyzstan in the final stage, who eventually won the silver medal by defeating this famous opponent.[5][6]
He competed at the 2024 Asian Wrestling Olympic Qualification Tournament in Bishkek, Kyrgyzstan and he earned a quota place for Iran for the 2024 Summer Olympics in Paris, France.[7] He competed in the 77 kg event at the Olympics.[8]
