Complex sentence: He was able to get his first two wins of his career in 1983, at Riverside and Martinsville Speedway Martinsville Speedway respectively, but stayed at 9th in points.
Split into simpler sentences: He was able to get his first two wins of his career in 1983, at Riverside and Martinsville Speedway Martinsville Speedway. The track was also one of the first paved oval tracks in... respectively, but stayed at 9th in points.