Last week I looked into whether a "hangover" effect existed after Rox returned from a road looking at both the offense and comparing this to what our pitchers (or the other offense) did. Based on standard stats like hits, walks, strikeouts, on-base percentage, slugging, and BABIP, it would seem that whatever effect might exist, it effects both offenses (and pitchers) from both dugouts and that Rox are really not being penalized by returning home to altitude. The only real visible effect was that as a homestand increases the Rox winning percentage increases although one can debate the statistical significance of the wins as homestands lasting 8 - 10 games are rare (38 times over the last 5 seasons).
Building on this data my next logical question might be is whether the length of the road trip (i.e. number of games played, not days) effects the same stats we looked at previously. One has to wonder the longer the team travels and becomes accustomed to thicker air does the return to thin air matter? In the period from 2007 - 2011 Rox returned from a road trip 59 times with a length ranging from 2 - 11 games with more than half being approximately 6 games or less. In that period they had two 11 games trips. In these 59 games, Rox won 33 games for a winning percentage of 0.559 versus a 0.576 winning percentage over those five years.
The first graph simply graphs average number of hits, walks, and strikouts versus the length of the road trip. No real significance or trends really on this data. The only data point that might raise an eyebrow is that strikeouts tend to decrease upon returning home the longer the trip is (?). Probably just small sample size...
|Average number of hits, walks, and strikeout after returning from X number of road trip games|
|OBP, SLG, and BABIP after returning from X number of road trip games|
|Offense and Pitching differences after returning from X number of road trip games|
Final little tidbit is what do the numbers look like when a team is either returning from the East or West Coasts? Another peculiarity of the Rox is that they are the only team in the Mountain Time Zone (OK Arizona is there early in April). Anyway it seems the Rox do a whole lot better flying East. Or it could be Rox just hate California pitching and monstrous ballparks!