In 2012, Shari gained distinction as the world's highest-ranking javelin thrower in the F54/56 disability category. He achieved a throw of 29.83 metres (97.9 ft) in the men's Javelin F55 during the 1st Malaysia Open Para Athletics Championship in April 2012,[3] sparking hopes in the country for the potential acquisition of its first medal in either Olympic or Paralympic events.[4] At the London2012 Summer Paralympics, he was the only competitor from Brunei.[5] He placed eighth in the men's F54-56 javelin throw.[6]
On 20 October 2014, at the 2014 Asian Para Games in Incheon, Shari won bronze with a throw of 25.28 meters in the men's javelin throw F55/56 event.[9] For their prospects of winning a gold medal at the 2017 ASEAN Para Games in Kuala Lumpur, Brunei was counting on the combination of Alihan Muda and Shari.[10][11] He finished fourth in the men's discus throw F55 with a distance of 26.53 metres, just missing out on a podium spot.[12] Despite this, he won a bronze medal in the men's javelin throw F55 event.[13]
From 30 July to 6 August 2021, Surakarta hosted the 2022 ASEAN Para Games.[14] Shari was one of 22 Bruneian athletes competing in the competition. After placing third in the men's javelin throw F54/F55 event, he won his second bronze medal in the men's discus throw F54/F55 event.[15] He and his contingent were welcomed like heroes when they returned to Brunei International Airport in Bandar Seri Begawan.[1]
During the opening ceremony of the 12th ASEAN Para Games, Shari was given special recognition as the flag bearer for Brunei during the national contingent's passing event.[16] On 4 June 2023, at the Morodok Techo National Stadium in Phnom Penh, Cambodia, he won bronze in the men's discus F55 event, earning Brunei their first medal at the competition. He set a new personal best and shattered the national record with a distance of 25.36 meters.[17][18] His throw of 22.16 meters earned him bronze in the men's javelin throw F55 competition.[19]
From 22 to 28 October 2023, Shari competed on behalf of Brunei in the 4th Asian Para Games in Hangzhou, China.[20] He participated in the shot put F55, discus throw F54/55/56, javelin F55 events.[21]