Ka Ying Rising (NZ) (Shamexpress) maintained a relentless pursuit of racing history and stretched his unbeaten sequence to 15 races with a devastating display of power and speed to land the HK$5.35 million Gr.2 Jockey Club Sprint (1200m) at Sha Tin on Sunday. Unvanquished since January 2024, Ka Ying Rising (128lb) obliterated nine rivals in clocking the second-fastest time in history over 1200m at Sha Tin – 1m 07.33s, marginally outside his own track record of 1m 07.20s – despite being eased down over the last 100m by jockey Zac…