At the end of April, the Tigers were averaging 4.52 runs per game and giving up 4.13 - a scant 0.39 average differential.
Now, for the season to date, these numbers stand at 4.89 and 3.64, respectively, a much healthier differential of 1.25.
Looking at May only, for these 13 games the Tigers are averaging 5.54 runs per game, while giving up only 2.77 - an astounding 2.77 run differential. Coincidentally, the Tigers have exactly doubled up on their opponents' scoring during the month.
Graph 1 shows Tigers scoring by inning, for May (blue) and for season to date (red.)
The strong 4th inning has gotten stronger, at the expense of the 3rd. The good news is how late scoring has picked up. Other innings haven't changed much. There have been no extra inning games so far this month.
Graph 2 shows runs allowed per inning, for May and for season to date.
Innings 1, 2, 4, and 6 are down, 3 and 7 close to unchanged, 5 and 9 are up a bit. The 5th inning jump is largely due to Verlander's 5-run inning on Tuesday, when the Tigers were up by 6.
Note these two graphs are on the same scale. That in itself shows how dominating the Tigers have been.
Their 24-12 record (.667 win percentage) is the best in the majors, and projects to 108 wins for the season. They've played the fewest games of any team in the majors, with 3 to 6 games in hand relative to their division mates. Interestingly, the allegedly weak A L Central as of Monday was 24-14 against the allegedly strong A L East.
Tigers are in Boston for 3 this weekend, then move on to play 3 against division rival Cleveland. After that, the Rangers are in town for 4.
For pitching stats, see part 2.
I'll have more detail at the end of the month.