Cubs OPS differential of .147 would be highest since 1939 if they finish with it

They have a team hitting OPS of .778 while their pitchers have allowed .631. In their last 32 games of 2015, the differential was .186 (.757 - .571). They have played 131 games this year (through Tuesday). Their differential over the last 163 games (including the last 32 from 2015), is .155, weighted by number of games played. That is almost as good as the 1939 Yankees, who have the second highest OPS differential since 1914.

Here is the top 25. Compiled from the Baseball Reference Play Index and Retrosheet

Team	Year	OPS	OPSA	DIFF
NYY	1927	0.872	0.676	0.196
NYY	1939	0.825	0.667	0.158
ATL	1998	0.795	0.656	0.139
BAL	1969	0.756	0.620	0.136
NYY	1936	0.864	0.733	0.131
STL	1944	0.745	0.615	0.130
STL	1942	0.717	0.590	0.127
CLE	1948	0.792	0.665	0.127
NYY	1998	0.825	0.699	0.126
SEA	2001	0.805	0.679	0.126
PHA	1929	0.816	0.692	0.124
NYY	1937	0.825	0.704	0.121
CLE	1995	0.839	0.718	0.121
BRO	1953	0.840	0.722	0.118
CLE	1954	0.744	0.626	0.118
NYY	1932	0.830	0.714	0.116
NYY	1931	0.840	0.726	0.114
PHA	1928	0.799	0.685	0.114
ATL	1997	0.769	0.655	0.114
STL	1943	0.725	0.611	0.114
NYY	1921	0.838	0.725	0.113
BRO	1941	0.752	0.641	0.111
LAD	1974	0.743	0.633	0.110
PHA	1931	0.789	0.680	0.109
BOS	2003	0.851	0.742	0.109

Cubs OPS differential of .141 would be 3rd best since 1914 if they finish with it

They have a team hitting OPS of .772 while their pitchers have allowed .631.

Here is the top 25. Compiled from the Baseball Reference Play Index and Retrosheet

Team	Year	OPS	OPSA	DIFF
NYY	1927	0.872	0.676	0.196
NYY	1939	0.825	0.667	0.158
ATL	1998	0.795	0.656	0.139
BAL	1969	0.756	0.620	0.136
NYY	1936	0.864	0.733	0.131
STL	1944	0.745	0.615	0.130
STL	1942	0.717	0.590	0.127
CLE	1948	0.792	0.665	0.127
NYY	1998	0.825	0.699	0.126
SEA	2001	0.805	0.679	0.126
PHA	1929	0.816	0.692	0.124
NYY	1937	0.825	0.704	0.121
CLE	1995	0.839	0.718	0.121
BRO	1953	0.840	0.722	0.118
CLE	1954	0.744	0.626	0.118
NYY	1932	0.830	0.714	0.116
NYY	1931	0.840	0.726	0.114
PHA	1928	0.799	0.685	0.114
ATL	1997	0.769	0.655	0.114
STL	1943	0.725	0.611	0.114
NYY	1921	0.838	0.725	0.113
BRO	1941	0.752	0.641	0.111
LAD	1974	0.743	0.633	0.110
PHA	1931	0.789	0.680	0.109
BOS	2003	0.851	0.742	0.109

When Carl Reynolds Hit A HR In Each Of The First Three Innings

It was in game 2 of a double header against the Yankees in New York on July 2, 1930. No one did it again until Manny Machado did it yesterday.

Before looking at Reynolds's game, I want to mention that George Kelly hit a HR in three consecutive innings (4th, 5th, 6th) in a game in 1923 and that Mike Cameron had three HRs in the first three innings of a game in 2002, with two in the first inning and one in the third (he hit 4 HRs in the game).

Click here to see the box score of the Kelly game from Baseball Reference

Click here to see the box score & play-by-play of the Cameron game

Click here to see the box score & play-by-play of the Reynolds game

Here is what The Baseball Page says about his feat

"On July 2, 1930, in the second game of a doubleheader against New York in Yankee Stadium, Reynolds smashed three homers. Hundreds of players have hit three homers in one game, but the amazing thing about Reynolds' trifecta was that they came in the first three innings. Reynolds hit homers in each of the first three innings, including two of the inside -the-park variety. According to newspaper accounts, Reynolds lined two balls over the head of Yankees' center fielder Earl Combs and circled the bases before the relay throws made it back to the plate. His other homer was a blast off Red Ruffing into the left field seats. Reynolds' White Sox defeated the Yanks 15-4."

I will put the link to that page at the end since the link was not working and I had to use the cached page. Another website says the non-inside the park HR was to RF. It is from the book '30: Major League Baseball's Year of the Batter by Ray Zardeito.

Two of the HRs were off of Hall of Famer Red Ruffing. Ruffing was a righty as was Reynolds, so he had no platoon advantage. Ruffing did not give up alot of HRs. In 1929, pitching for the Red Sox, he allowed 17 HRs in 244 IP. In 1930, it was 11 in 221 IP (with 1 in 24 IP with Boston) and in 1931 it was 11 in 237 IP. The other HR Reynolds hit was off of Ken Holloway, another righty. 

Reynolds was 5 for 6 in the game, adding two singles later and he had 8 RBIs.

Here is the cached page from The Baseball Page

Hitting And Scoring Down In July

Data from Baseball Reference

AL	BA	OBP	SLG	OPS	R/G
April	0.245	0.312	0.399	0.711	3.97
May	0.260	0.324	0.427	0.751	4.74
June	0.270	0.332	0.446	0.779	4.91
July	0.254	0.318	0.416	0.734	4.41
NL	BA	OBP	SLG	OPS	R/G
April	0.253	0.327	0.410	0.737	4.50
May	0.249	0.315	0.401	0.715	4.16
June	0.256	0.323	0.418	0.741	4.52
July	0.250	0.317	0.409	0.727	4.29