To put it in less technical terms: The ball was hit a very long way.
Goldschmidt's blast hit the horizontal girder to the left of the giant scoreboard in center.
"I haven't seen a ball hit there at all," D-backs catcher Jarrod Saltalamacchia said. "That ball was cleanly hit and it just kept going and going."
Goldschmidt took a 92-mph fastball for a strike from right-hander John Lackey to start the at-bat, and when Lackey came back with another 92-mph heater a little bit higher, Goldschmidt jumped on it.
"I was just looking for something I could hit, just kind of reaction," said Goldschmidt, who was facing Lackey for the first time in his career.