10 teams went 1-0 and made the playoffs. Based on this llmited data, winning the first game is a pretty strong correlation to to making the playoffs.
4 out 16 teams who started 0-1 , 25% made the Playoffs
10 out 16 teams who started 1-0 made the playoffs, 62.5% made the playoffs.
62.5/25 = 2.5, meaning teams winning the first game last year had a 2.5x greater chance of making the playoffs compared to teams to who lost the first game.