KINGSTON, Jamaica—Rajindra Campbell broke the Jamaican men’s shot put national record for a second time this year after he threw 22.44m to win the event on the first day of competition at the 76th Boris Hanžeković Memorial at Sports Park Mladost in Zagreb, Croatia on Thursday. The meet is a World Athletics Continental Tour Gold event. Campbell broke the 22.34m mark he had set on May 23 at the Wanda Diamond League meeting in Xiamen, China.