Complex sentence: Marita took the silver medal in 200 meters at the 1983 Universiade and help Canada to silver medals in both the 4 x 100 meter and 4 x 400 meter relays; she competed at the inaugural 1983 World Championships in Athletics shortly afterwards.
Split into simpler sentences: Marita took the silver medal in 200 meters at the 1983 Universiade and helped Canada to silver medals in both the 4 x 100 meter and 4 x 400 meter relays. She competed at the inaugural 1983 World Championships in Athletics shortly afterwards.