Miami Marlins: Grading the Fish in Atlanta

ATLANTA, GA - MAY 20: Miguel Rojas #19 of the Miami Marlins hits a two-run home run in the seventh inning during the game against the Atlanta Braves at SunTrust Park on May 20, 2018 in Atlanta, Georgia. (Photo by Mike Zarrilli/Getty Images)
ATLANTA, GA - MAY 20: Miguel Rojas #19 of the Miami Marlins hits a two-run home run in the seventh inning during the game against the Atlanta Braves at SunTrust Park on May 20, 2018 in Atlanta, Georgia. (Photo by Mike Zarrilli/Getty Images) /
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The Miami Marlins took just one of three games in Atlanta over the weekend. A nice Dan Straily shutout opened things up nicely for the Marlins on Friday.

ATLANTA, GA – MAY 20: Lewis Brinson #9 of the Miami Marlins is congratulated by Brian Anderson #15 after his grand slam in the fourth inning during the game against the Atlanta Braves at SunTrust Park on May 20, 2018 in Atlanta, Georgia. (Photo by Mike Zarrilli/Getty Images)
ATLANTA, GA – MAY 20: Lewis Brinson #9 of the Miami Marlins is congratulated by Brian Anderson #15 after his grand slam in the fourth inning during the game against the Atlanta Braves at SunTrust Park on May 20, 2018 in Atlanta, Georgia. (Photo by Mike Zarrilli/Getty Images) /

After that, an 8-1 blowout loss on Saturday and a ninth-inning meltdown for the ages on Sunday. Is there anything positive that we can take from this series? My sources say that yes, there is some good we can take with the bad.

The Skinny

For this series of articles, I use the Wins Probability Added metric (WPA) to help ascertain which players performed better (or worse) in the higher leverage situations. In other words, if the Miami Marlins are winning, 6-0, a plate appearance doesn’t count as much. Conversely, an at bat with two on and two out in the bottom of the 13th has a very high leverage.

There’s something else you need to understand about WPA. Every game has a collective WPA of zero. The winning team will finish with a total of .50, and the losing team will have -.50. It doesn’t matter if the two teams combine for 50 runs or it finishes at 1-0, the WPA will still add up to zero. Also of interest, if two clubs split a two game series, each team’s individual WAR will also be a collective zero. At the end of a 162 season, in fact, an 81-81 club will have a mark of, you guessed it, zero.

WPA is not a great predictor of future performance. What it can tell you is which players performed best when the chips were down. As such, it’s a great metric for telling the story of one ballgame, or in this setting, one series. In these games, blowouts both, an early inning plate appearance, when the game was close, is worth much more than a plate appearance near the end. We’re going to take a closer look at Miami’s 20 participants in their series versus the Braves.