Starting with their first full season with lights, in 1989, as part of the compromise with the city, the Cubs were limited to 18 night games within their 81-game regular season schedule, plus any post-season games that might have to be played at night for TV scheduling reasons. The timing of the lights' installation proved fortuitous, as the Cubs reached the post-season in 1989. Their first two post-season night games were the first two games of the NLCS, on October 4 and 5. They lost the first game against the San Francisco Giants 11–3, and won the second game 9–5.