Scenario:Compare teams "2nd half of season late inning (7th inning on) wOBA improvement over their 1st half of the season in the late innings when playing at home". How much better (or worse) did each team do during the time frames?
How to read these ZScores: Blue = 1st half of the season at Home. Orange = 1st half of the season on the road. Green: 2nd half of the season at Home. Red = 2nd half of the season on the road.
So what can you can infer from below (and apply to other teams) is "if the green bar is taller than the blue bar, then the team improved at home in late inning OBP. Otherwise, they declined in the 2nd half. If the red bar is > orange bar, then they improved on the road in the late inning OBP in the 2nd half. Otherwise they declined".
The widest gap between green and blue is the winner. In the case of the Cardinals, you can say their home record (green over blue) was astonishing. As for their road record, it's good (red over orange) but but as dramatic as their home record
The figures based on this time frame (2004-2019)
If analyzing this, it's worth noting that the Mile High climate may cause the Colorado spike as that stadium has (as others have said) influenced offensive numbers. For the other stadiums, it's not the case. Also worth noting, the Yankees and Red Sox tend to drop in the 2nd half whereas the Cardinals, Rockies and Pirates spiked upwards in the 2nd half.
Team ZScoresHomeImprove ZScoresRoadImprove
25 SLN 2.124713 -0.137284
9 COL 1.777065 0.814774
21 PIT 1.508736 -2.314914
29 WAS 1.309513 0.263071
5 CHA 1.197203 -0.337072
22 SDN 1.019582 -1.288350
0 ANA 0.965325 0.596310
1 ARI 0.911068 -0.439203
17 NYA 0.302515 0.898228
14 MIA 0.287834 0.974292
11 HOU 0.211806 0.027488
16 MIN 0.106753 2.023228
19 OAK -0.030956 -0.225992
12 KCA -0.038213 0.151991
23 SEA -0.070868 -0.545808
10 DET -0.099727 0.018539
8 CLE -0.208409 2.116410
26 TBA -0.226551 -0.448151
13 LAN -0.230179 -0.839557
18 NYN -0.400543 1.174080
20 PHI -0.454800 -0.257313
24 SFN -0.592509 0.263071
15 MIL -0.664907 1.649719
27 TEX -0.759076 -0.799288
3 BAL -0.769961 -0.301277
4 BOS -0.918387 -1.319671
2 ATL -0.998211 -0.839557
6 CHN -1.425683 -0.443677
28 TOR -1.635790 -1.279402
7 CIN -2.197343 0.845315
Team Home1stHf Road1stHf Home2ndHf Road2ndHf
25 SLN 317.0 319.0 337.0 0.318
9 COL 345.0 287.0 361.0 0.293
21 PIT 302.0 315.0 317.0 0.295
29 WAS 309.0 307.0 322.0 0.309
5 CHA 309.0 312.0 321.0 0.309
22 SDN 291.0 318.0 302.0 0.307
0 ANA 307.0 310.0 317.0 0.315
1 ARI 323.0 309.0 332.0 0.305
17 NYA 341.0 320.0 344.0 0.328
14 MIA 306.0 303.0 310.0 0.311
11 HOU 316.0 308.0 319.0 0.308
16 MIN 318.0 301.0 320.0 0.318
19 OAK 311.0 313.0 312.0 0.311
12 KCA 309.0 306.0 310.0 0.307
23 SEA 300.0 307.0 301.0 0.302
10 DET 323.0 310.0 323.0 0.310
8 CLE 324.0 306.0 323.0 0.324
26 TBA 319.0 311.0 318.0 0.307
13 LAN 318.0 321.0 317.0 0.314
18 NYN 302.0 310.0 300.0 0.320
20 PHI 318.0 320.0 315.0 0.318
24 SFN 311.0 307.0 307.0 0.309
15 MIL 322.0 307.0 317.0 0.321
27 TEX 327.0 312.0 321.0 0.305
3 BAL 324.0 304.0 318.0 0.301
4 BOS 345.0 325.0 337.0 0.314
2 ATL 323.0 321.0 315.0 0.314
6 CHN 329.0 310.0 317.0 0.306
28 TOR 333.0 316.0 319.0 0.305
7 CIN 333.0 306.0 314.0 0.313
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