Only pitcher I ever saw in postseason this dominant was Bob Gibson. Three world series (1964, 1967, 1968), three starts each series, Eight straight complete games. No wildcard, division, or league playoff games back then, so a bit difficult to compare. But Bumgarner and Gibson would be my top two postseason pitchers.
Nerves of steel.
He fell asleep on the team bus while on the way to the park last night, Posey had to wake him up to get off.