Miami Marlins: Realmuto, Ziegler Big Winners vs Dodgers

MIAMI, FL - JULY 17: J.T. Realmuto
MIAMI, FL - JULY 17: J.T. Realmuto /
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Earlier this season, the Miami Marlins defeated the defending National League Champion Los Angeles Dodgers, two-games-to-one. In three games this week, they did it again to claim the season series.

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 22 participants in their series versus the Dodgers.

Miami Marlins
NEW YORK, NY – APRIL 17: J.T. Realmuto /
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