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Our Criteria here: Win - a given team wins the game if they were losing/tied (in this order) in extra innings, 9th, 8th or 7th inning. Loss - a given team loses the game when they were winning/tied in extra innings, 9th, 8th, or 8th inning.
ZScore: is based on the population standard deviation and mean here. It tells you how many standard deviations from the mean you are. For wins, a positive ZScore is what you want as that relfects "you came back to win more than others". So 1.5 is better than 0.5. For the loss, a negative ZScore is what you want as that reflects "you did not lose your leads like others around the mean". So -1.5 is better than -0.5
"Which team in the AL West had the BEST improvement between the first half of the season and the second half of the season between 2013 and 2019 with late inning rallies and late inning losses.
From July to the end of regular season:
2nd half inn Rally wins: Texas Rangers Zscore 1.16
2nd half late inn losses: Houston Astros -1.64
Note: Houston did well in the W/L totals but did decline in their 2nd half output of late inning rallies. In what appears to be rare cases like this, a team that did not fare that well in this category can still be very good. It could just mean they win a lot of their games earlier on or that they have bullpen struggles in games, etc..
If you want to see the significance again of the ZScore and what it can be telling you, please see: https://baseballfan999.wixsite.com/baseballdat/post/what-does-the-zscore-tell-you The difference in won loss spread ((late inn win)-(late inn loss)) between 1st/2nd half of season. Orange means "The games they won by late inning rallies - games they lost in the late innings". Blue means "The games they won by late inning rallies - the games they lost in the late innings". Positive values are always good. Focus on the Orange ZScore (late inn win and losses) between 1st/2nd half of season. Positive value means "better in the 2nd half".
The figures based on this time frame (2013-2019)
Green: Most improved "devil magic" AL team in the 2nd half of the season in this division
Red: Most declined in this division
Second Half ZScore improvement over First Half:
Team ZScoreTotalImprovement
0 OAK -0.556663
1 SEA 0.763477
2 ANA 0.261923
3 TEX 1.167197
4 HOU -1.635933
Total wins and Late Inn rally wins for first half and second half of season
Team FirstHalfTotW FirstHalfLateW SecondHalfTotW SecondHalfLateW
0 OAK 297 68 293 72
1 SEA 285 66 270 68
2 ANA 284 65 283 67
3 TEX 299 65 265 59
4 HOU 316 64 286 54
Total losses and Late Inn losses for first half and second half of season
Team FirstHalfTotL FirstHalfLateL SecondHalfTotL SecondHalfLateL
0 OAK 277 60 267 67
1 SEA 289 77 290 69
2 ANA 288 64 279 58
3 TEX 271 72 300 46
4 HOU 260 59 272 74
First and 2nd half improvement ZScores
Team FirstHalfImprovementZScores SecondHalfImprovementZScores
0 OAK 1.228 0.329
1 SEA -1.423 -0.190
2 ANA 0.251 0.674
3 TEX -0.865 1.020
4 HOU 0.809 -1.833Here's the input data generated by the custom program designed to extract the scenario.Apr includes March reg season games. Sept includes Oct reg season games.
Team,AprW,AprL,MayW,MayL,JunW,JunL,JulW,JulL,AugW,AugL,SepW,SepL,TotAprW,TotAprL,TotMayW,TotMayL,TotJunW,TotJunL,TotJulW,TotJulL,TotAugW,TotAugL,TotSepW,TotSepL
OAK,21,24,21,18,26,18,30,19,22,21,20,27,95,94,97,99,105,84,96,79,95,97,102,91
SEA,25,21,22,27,19,29,20,23,23,23,25,23,91,93,98,99,96,97,84,89,93,101,93,100
ANA,20,26,24,19,21,19,19,18,22,23,26,17,88,96,103,96,93,96,91,81,94,102,98,96
TEX,20,25,24,19,21,28,16,17,26,15,17,14,89,93,108,91,102,87,65,111,107,87,93,102
HOU,20,15,20,22,24,22,16,18,22,28,16,28,93,93,116,84,107,83,83,87,98,99,105,86
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