It was just one night, but the Washington Nationals' offensive onslaught against the then-NL ERA leader at pitcher-friendly AT&T Park in San Francisco on Monday night was rather impressive.

The Nats scored a season-high 14 runs in their win over the Giants.

San Francisco starting pitcher Ryan Vogelsong, who allowed 12 earned runs in his previous 76 home innings pitched in 2012, allowed eight earned runs in 22Ú3 innings. He entered the night with the NL lead in ERA (2.27) and ended the night tied with two other pitchers for third (2.72). His WHIP went from 1.11 to 1.17.

And then Brad Penny came in and allowed a season-high six runs in two innings of relief.

The Giants had not allowed 14 runs at home since allowing 15 to the Rockies on Sept. 24, 2008.

It may have been the Nats' most impressive offensive performance this season, but it was an accurate representation of what has turned into one of the best offenses in the league. Since the All-Star break, no team has scored more runs than the Nats.

- Jeffrey Tomik