Javelin thrower Yu Chi-siu smashed a 12-year-old junior record, while 22 age-group records were broken in the third round of the 2005 Watsons Water Hong Kong Junior Elite Athletic Championships. Chi-siu, an 18-year-old Watsons Athletic Club member, had shown little sign of his potential in the first and second rounds on Saturday. But he set a new mark later in the day, throwing an impressive 50.92 metres in the boys' A1 javelin. The old record was 50.80m. More than 1,800 athletes took part in the event at the Wan Chai Sports Ground over the weekend. In the boys' Grade B 800m, Tsang Hon-sing set two age-group records, clocking 2 minutes, 6.70 seconds in the heats, and then improving his time with 2:05.49 in the final. This race produced four records, as first runner-up Chan Shun-hong and third-placed On Sing-chuen also broke the age-group mark with 2:05.68 and 2:06.65, respectively. Sing-chuen had established the old record in 2001. In the boys' 200m, Shing Kiu-fung set two age-group records with 24.56 seconds in the heats, and 24.42 in the final. Hurdler Leung Hiu-yee continues to make good progress, following her silver medal-winning performance at the Singapore Open Track and Field Championships last month. She won the Grade B 100m hurdles at the Watson's competition in 15.30 seconds to set a new age-group record. Hiu-yee, who became a member of the Hong Kong athletic team in July, is one of the top-ranked junior hurdlers in Hong Kong. Her older rival, Wong Wing-sum of Watsons Athletic Club, broke the A2 age-group record twice, with a time of 15.29 in the heats, and a speedy 15.06 in the final. In the boys' A1 shot put, Chiu Lap-san, the top-ranked junior, broke the age-group record with a throw of 13.51m, and is expected to remain a dominant figure in this category for some time to come. Watsons Athletic Club athletes swept the first three positions in several events, including the boys' A1 110m, boys' A2 long jump, girls' Grade C 1,500m, and girls' Grade B 100m. The final round of the championships will be held on November 5 and 6.