Shericka Jackson won the opening meeting at the Shanghai/Keqiao Diamond League last week. [EPA]Two-time 200m world champion Shericka Jackson produced a dominant display to win the 200m Diamond League event in Xiamen.Jackson smashed the meeting record and narrowly missed out on the world lead by 0.01 seconds, finishing with a time of 21.87 seconds to claim the victory. The Jamaican led from the off and showed her strength on the bend to pull away. Shaunae Miller-Uibo (22.04) and Anavia Battle (22.29) both produced season's bests to claim second and third respectively but neither looked like troubling Jackson.The 2023 world 100m champion, Sha'Carri Richardson, also produced a season's best, crossing the line in fourth with a time of 22.38 seconds.Amy Hunt, Great Britain's 200m world silver medallist, finished seventh in the field of nine.Elsewhere on Saturday in Xiamen, 18-year-old Chinese athlete Yan Ziyi moved to second place in the women's javelin record books with a stunning effort of 71.74m.At the age of 17, Yan landed the world junior record. A day after turning 18, her throw on Saturday broke the Diamond League record, the Asian record and the world under-20 record.