So here’s the question: how can the Washington Nationals — so toothless against an also-ran and struggling team like the Chicago Cubs — play so well against the St. Louis doom-machine Cardinals? It could be (of course) that the Nats simply play better against stiffer competition (a notion belied by their record against good teams), or it could be (as it seemed on Saturday night) that the team was just due. Whatever the reason, the Washington Nationals finally broke loose against the St. Louis Cardinals on Saturday, plating fourteen runs on sixteen hits, to clobber the Cardinals, who seem suddenly mediocre against struggling teams. The difference on Saturday was Adam Dunn. The left handed swinging behemoth, mired in a month-long slump, provided the impetus for the Nats to break out of their doldrums: Dunn was 2-3 with five RBIs, hitting a towering fly in the 5th for his 32nd home run. “I hit the home run really good,” Dunn said after the win. “I just knew the ball was really high. At this park, you really never know.”

But Dunn was not the only one on fire on Saturday. Michael Morse also had a hot hand, going 4-4 and scoring two runs, while Adam Kennedy, Roger Bernadina, Ryan Zimmerman and Ivan Rodriguez had two hits each. Over the last two games, the Nationals (whose offense has been positively anemic through much of August) have scored 25 runs on 25 hits, a symmetry rarely equaled through the last five months. While the Nationals might seem to have little to play for (they are nearly 20 games out in the race for the N.L. East Division crown), the same cannot be said of the Cardinals — who need every win they can get to keep pace with the surging Cincinnati Reds, who retain a four game lead over the Cardinals in the N.L. Central. The Cardinals are now faced with a chilling end-of-August reality: unless they start playing better against teams like the Nationals, they will cap a very good season without a shot at the playoffs. For the final game of this four game series, the Nationals will send John Lannan against Albert Pujols & Company on Sunday at Nationals Park.

Scoring The Nationals: Each game — and every year — provides its own scoring rarities. Two occurred on Saturday night that I have never seen before, or scored before. While “keeping a book” is always a challenge, the application of little-known rules to in-game situations can be discomforting. When Ian Desmond was called out for running outside the baseline in the third inning (how often, really, do you see that?) MASN play-by-play host Bob Carpenter helped me along: “That’s scored 3u,” he said — first base putout, unassisted. But the play demanded an asterisk — an outside-the-tradition personal tic that I use to note a rarity (some scorers use an asterisk to denoted a stellar defensive play, I prefer an exclamation point). There was a second asterisk (it’s important to limit their use) that I used in Saturday’s game. It came in the 8th inning, when Nyjer Morgan was called out at home plate (or, more pertinently, behind it), after being touched by a Nationals’ player. Once again Carpenter helped: “That scored 2u,” he said.

The problem with using an asterisk is that it always demands an explanation: which I give in a sentence at the bottom of my score sheet. The July 9 Strasburg beauty against the Giants (6 innings, 3 hits, 1 ER), for instance, included this asterisk in the first inning: “Cain throws it into the ground.” The asterisk was enough for me to recall a memorable moment in the 2010 season — when Giants’ pitcher Matt Cain lost his grip on the ball, which led to Roger Bernadina scoring the Nationals’ first run from second base. The official scoring, I claim, provided only a limited (and even puzzling) explanation that doesn’t really tell the story: “E: Cain (1, pickoff).” There are some events, however, that drive me back to paging through the best best resource on scoring, Paul Dickson’s “The Joy of Keeping Score” (it ought to be called “The Agony of Keeping Score”) which includes one scorer’s “WW” notation — “wasn’t watching.” That happens.

Of course, and as Dickson himself will readily admit, there are some events that happen on the field that simply can’t be scored — though they are fascinating. For instance: I was mightily confused with an event in Philadelphia, when Phillies catcher Carlos Ruiz was stopped by umpires from visiting the mound after heading into the clubhouse for a new glove. Why was he stopped and sent back behind the plate? Why, why, why, why, why? I didn’t get it, and the announcers seemed as puzzled — finally just dropping the subject. The puzzle was finally answered (after much thought) by a family member (here he is) who provided this explanation: “If the catcher goes into the clubhouse and then emerges from the dugout to go to the mound, it constitutes a visit,” he said. “The umpires told him — and he decided against it.” Fascinating — and correct. But it has to be remembered; it can’t be scored.

(above: Adam Dunn photo by AP/Susan Walsh; below: Philadelphia Athletics manager Connie Mack used his scorecard to give signals)