Chang defeated Indonesian player Tommy 2-0 in the round of 32 at 10 a.m. on Monday before returning to his hotel to rest before his scheduled round of 16 match against Yoni Rachmanto at 4 p.m.

However, a member of the organizing team found Chang unresponsive in his hotel room. Initial reports suggest that he suffered a stroke, likely due to a heart attack.

The 2025 Indonesia Open is part of the World Pool Billiards Federation (WPA), and this organization confirmed Chang’s death at 9 p.m. and expressed condolences to his family and fans.

The WPA praised Chang as an exemplary player with composure and dignity, praising him as “a hero to a generation of Taiwanese players”.

“Beyond his accomplishments in competition, Chang was a quiet leader, an inspiration to the next generation, and a true ambassador of the sport,” the WPA said. “We have lost a legend, but his spirit, sportsmanship, and contributions to cue sports will never be forgotten.”

Both Matchroom and the World Nineball Tour also mourned the loss of the 40-year-old player.

“Chang was considered by many as one of the best and most fierce players of his generation. Respected by his peers, adored by his fans, he will be missed by all. Our thoughts are with his family, friends, and all of those affected during this dark time,” Matchroom said in a statement.

Chang began his professional pool career in 2000 and quickly made a name for himself. He earned runner-up finishes at the 2001 and 2003 World Junior 9-Ball Pool Championships and reached the round of 16 at the 2005 World 9-Ball Pool Championship.

His career peak came with victories at the 2012 WPA World 8-Ball Championship and the 2013 WPA World Team Championship. He also won the 9-Ball silver medal at the 2013 World Games and the 2024 Asian 10-Ball Championship.

Chang is regarded as the pioneer of Taiwanese pool, inspiring future stars such as Wu Chia-ching, Ko Pin-yi and Ko Ping-chung.