Sailing from , Sieraj Jacobs competes in the the region dinghy circuit. Sieraj's competitive record on SailingSA begins in September 2019. Since then 178 races across 19 regattas have been completed. Most of Sieraj's racing has been in Hunter 19, with additional starts in Sonnet. Sieraj's best results include winning the 2024 -01-09 SA Sonnet Nationals in the Sonnet fleet, as well as the 2024 -02-11 HYC Cape Classic in the Sonnet fleet. Sieraj continues to compete regularly across provincial and national sailing events.