Like in every game, there is a lot of luck involved in baseball. Skill is not the only determiner of whether you win or lose.
One thing that has always fascinated me is the relationship between Earned Run Average (ERA) and winning. The ERA is a pitching stat calculated by dividing the number of earned runs allowed by the number of innings pitched and multiplying by nine. The end result is a number representing how many runs a pitcher is expected to give up in a game if allowed to pitch the full nine innings. You would think that a pitcher who gives up a lot of runs will lose most of his games, and a pitcher who doesn’t give up many runs will win most. But that is often not the case.
Take the Miami Marlins. So far this season, the team has a collective 3.97 ERA. That’s a relatively good number to have. But they have a losing record of 76-78.
Then you have a team like the Texas Rangers with a 4.41 ERA. They have a 91-63 record and are going to the postseason for a chance to go to the World Series.
When you look at individual players, the differences look even more unfair. Just look at Atlanta Braves pitcher Julio Teheran. He owns a 3.10 ERA, but has a 6-10 record. Los Angeles Angels pitcher Jered Weaver has an even 12-12 record, but has a horrendous 5.20 ERA.
No, baseball is not always fair. Like in any game, to win you have to have both skill and luck. Sometimes you don’t even need skill.