FanGraphs Power Rankings: May 9–15

It was an eventful week in baseball, as we saw some history made and a lot of fun on the field. There were some big moves in the power rankings too.
A reminder for how these rankings are calculated: first, we take the three most important components of a team — their offense (wRC+), and their starting rotation and bullpen (a 50/50 blend of FIP- and RA9-, weighted by IP share) — and combine them to create an overall team quality metric. New for this year, I’ve opted to include defense as a component, though it’s weighted less heavily than offense and pitching. Some element of team defense is captured by RA9-, but now that FanGraphs has Statcast’s OAA/RAA available on our leaderboards, I’ve chosen to include that as the defensive component for each team. I also add in a factor for “luck,” adjusting a team’s win percentage based on expected win-loss record. The result is a power ranking, which is then presented in tiers below.
| Team | Record | “Luck” | wRC+ | SP- | RP- | RAA | Team Quality | Playoff Odds |
|---|---|---|---|---|---|---|---|---|
| Yankees | 25-9 | 0 | 122 | 78 | 72 | -1 | 178 | 98.6% |
| Astros | 23-12 | 0 | 116 | 88 | 82 | 10 | 179 | 97.1% |
| Angels | 24-13 | -1 | 120 | 82 | 102 | 3 | 167 | 82.1% |
The Yankees remain at the top of the rankings after winning six of their seven games last week, including a two-game sweep of the Blue Jays and a series win against the White Sox. Even as scoring remains depressed throughout the game, the Yankees have continued to mash despite the deadened ball. They hung 32 runs on Chicago during their weekend series and will host the Orioles for four games to start this week — I imagine plenty more runs should be scored. Oh, and Nestor Cortes has suddenly ascended to a place among the game’s elite pitchers — he took a no-hitter into the eighth inning on Monday.
The Astros stretched their win streak out to 11 games before falling to the Nationals 13-6 on Saturday. They got right back on track Sunday, shutting out Washington 8-0. That’s the fourth shutout they’ve posted in their last seven games, and the sixth stretching back to the beginning of their current red hot streak. Justin Verlander is pitching like he never had Tommy John surgery, Jake Odorizzi hasn’t allowed a run in three straight starts, and Luis Garcia has been exceptional over his last two. Read the rest of this entry »






