Maybe 10 is pushing it, but I firmly believe it cost us at least 4-5 games. Like I said, no one play costs us any game. Maybe a grand slam in a 0-0 game gets a big chunk of the credit- having a major impact on the odds of winning, but many plays contribute to a win or a loss, and changing one play, even if it seems like a little mistake at the time, can (not always) have a major impact on the odds of winning or losing. It changes who leads off th next inning and the ones after that. It changes the pitch count and possibly the choice of pitches to be thrown next. It may not be like a butterfly flapping its wings in China, but at times, it could be.
To dismiss it out of hand, especially when we have seen dozens and dozens of mental mistakes on this team is just not something I can ever support.
Sure, it's possible we might have only lost 1-2 games as a result of mental mistakes, but I'm thinking 4-5 is on the light side.
For all those who preach how attitude, club house atmosphere and intangibles make a difference in winning or losing, there's nothing like a bonehead play to take the wind out of a team's sails. An error is bad enough. An error of neglect or lack of focus can be an negatively influencing force on a team. I'm not even speaking to that: I'm speaking to bonehead plays actually stopping rallies (or helping along opponent rallies with defensive blunders) and losing us games directly or indirectly.
Blunders on defense have been more plentiful than on the base paths. We all know defensive mistakes are not always counted as errors, especially mental ones. We all agree,
some of our "errors" have been mental blunders. Throwing to the wrong base, forgetting how many outs there are and many other types of mental mistakes have taken place this year. Look at the best pitching teams in MLB and the differential between runs and unearned runs. I'm not dissing our defense. Overall, it has been very good or even great, but defense blunders have certainly caused us games.
Runs/Unearned Runs (differential)
LAD 494/464 (30)
CLE 511/480 (31)
AZD 553/494 (59)
WSH 574/528 (36)
NYY 579/524 (55)
BOS 581/533 (48)
As you can see, we do not have the worst R/ER differential, but the teams that have worse also have much worse defenses. We have a very good defense that happens to allow too many unearned runs. To me, although some could see this as a "stretch", this shows mental mistakes has cost us runs. It's impossible to think enough runs have been scored off defensive blunders to cause at least one loss.
Defensive rankings of best pitching teams
UZR/150
2. LAD
6. BOS
8. CLE
11. WSH
18. NYY
28. AZ
DRS
1. LAD
4. BOS
9. NYY
10. CLE
17. AZ
25. WSH
As you can see, the other teams that allowed more unearned runs have much worse defenses than us. I can only assume our "extra" unearned runs are a result of blunders not poor defensive skills. Maybe I'm assuming wrongly, but my eye test confirms the numbers.