During the 2016 Summer Olympics, Charles Chibana competed in the men's 66 kg judo event but was eliminated in the Round of 32. He lost to Masashi Ebinuma from Japan. You can find more details about his participation on ESPN's Summer Olympics page.
Here are some images from the match between Masashi Ebinuma and Charles Chibana during the Rio 2016 Olympics:
These images capture the intense moments from their judo bout at the Olympics.