Prawat Wahoram of Thailand appears dejected after winning silver and failing to defend his crown in the Men's 1500m T54 final at the Olympic Stadium, Tokyo, on Tuesday. (Photo: Reuters)

Thai wheelchair racers Prawat Wahoram, 40, and Putharet Khongrak, 26, won silver and bronze medals respectively in the 1,500m T54 event at the Tokyo 2020 Paralympic Games on Tuesday.