2017-02-28 22:50:49 UTC
This was a short story, probably 50s or 60s. The premise is that either aliens or advanced humans are living among the general populace. Even though they have superior abilities, one of those is the ability to remain unnoticed.
The narrator is being told this by someone else, and is skeptical at least at first. The other asks him who the best pitcher on the local baseball team is. When answered, "Jones" the other person says, "You know Smith has a better record."
At the end of the story, the narrator is watching "Smith" pitch, where he gives up a home run but without any expression as you might expect. Presumably "Smith" has done it on purpose for cover.