Complex sentence: Fixtures in their first season (1877--78) included Redruth (possibly the first opponents), Hayle and Lelant and the club won all their matches with only one try was scored against them.
Split into simpler sentences: Fixtures in their first season included Redruth (possibly the first opponents), Hayle and Lelant. In their first season (1877--78) the club won all their matches and only one try was scored against them.