Post columnist Thomas Boswell explained just how good this group is. Here are some of the most eye-popping facts and figures.

1. They're the best this season ... and it's not even close. After 70 games, the Nats not only lead the majors in ERA at 2.95, but they also lead it by a huge and startling margin. Nobody is close. ... The Nats’ ERA is more than a full run lower than either the major league (3.98) or National League (3.96) ERA. (Pictured: Ace Stephen Strasburg warms up before a game against the Rockies.) Justin Edmonds/Getty Images