PETALING JAYA: National shot putter Jonah Chang Rigan has set his sights on breaching the 19-metre mark as he targets another record-breaking performance at the Asian Throwing Championships in Mokpo, South Korea, from May 2-3.

The 22-year-old Sarawakian enjoyed a breakthrough season last year when he unleashed a superb throw of 18.78m in the final at the SEA Games in Supachalasai Stadium.