With his shutout Sunday night, Madison Bumgarner has become one of the greatest pitchers in World Series history. In four starts, over three World Series, Bumgarner has won all four, allowing a single run in 31 innings. And that run was all but meaningless: It came in the seventh inning in Game 1 against the Royals last week, with Bumgarner’s Giants ahead, 7-0.

Bumgarner now holds the record for lowest career earned run average (0.29) in the World Series among pitchers with at least 30 innings pitched. The mark is impressive by any standard. But don’t make the mistake of thinking that Bumgarner is the best World Series pitcher ever.

That distinction belongs to Christy Mathewson, who also did his pitching for the Giants (when they were in New York). It’s not even close, either.

Mathewson started 11 World Series games in the early 20th century, giving up a combined 11 runs, for an E.R.A. of 0.97. In 1905, he had arguably the finest baseball postseason performance: three games, three shutouts. He had two days of rest between the first two starts and a single day of rest between the second and third. The Giants and the Philadelphia A’s split the two games Mathewson didn’t pitch. But thanks to Matty, as he was known, the Giants won the Series in five games.