tag:blogger.com,1999:blog-3299311926633621468.post269528348636241489..comments2024-03-20T08:45:46.965-07:00Comments on Objective NHL: Shotblocking and Save PercentageJLikenshttp://www.blogger.com/profile/02570453428274983835noreply@blogger.comBlogger3125tag:blogger.com,1999:blog-3299311926633621468.post-52185848292062718112013-05-03T15:15:24.889-07:002013-05-03T15:15:24.889-07:00One thing for sure. I am thinking that it has to b...One thing for sure. I am thinking that it has to be with shot quality or goaltender skills. Hostpphhttp://www.hostpph.comnoreply@blogger.comtag:blogger.com,1999:blog-3299311926633621468.post-221677257587959562008-12-08T23:07:00.000-08:002008-12-08T23:07:00.000-08:00Thanks for the comment.The shot quality data that ...Thanks for the comment.<BR/><BR/>The shot quality data that I've been working with is from Ryder et al over at hockeyanalytics.com.<BR/><BR/>The shot quality models that they've developed don't take shotblocking into account. This is probably because, as you mentioned, goals that deflect off an opposing team player are simply recorded as regular shots on the NHL.com feed.<BR/><BR/>However, as you alluded to, the NHL.com feed does record deflections made by teammates that result in goals. This information has been incorporated into the shot quality models designed at hockeyanalytics. <BR/><BR/>I agree with you in that a shot that deflects off an opposing team player is much more dangerous than a shot from the same spot on the ice that is not deflected. This probably explains why there is a negative relationship between shot quality neutral save % and shots blocked at the team level.<BR/><BR/>However, until the NHL.com starts making the distinction, shot quality models will be unable to incorporate the effect of shotblocking.JLikenshttps://www.blogger.com/profile/02570453428274983835noreply@blogger.comtag:blogger.com,1999:blog-3299311926633621468.post-37510715821534541582008-12-08T15:33:00.000-08:002008-12-08T15:33:00.000-08:00I just found this blog. Great stuff. Keep up the e...I just found this blog. Great stuff. Keep up the excellent work.<BR/><BR/>I have one concern with this shotblocking stuff.<BR/><BR/>Is shot blocking sufficiently accounted for in the shot quality model? The reason I ask is because I thought I remember the NHL play-by-play data not recording when a shot deflects off an opposing team member.<BR/><BR/>For example, if Lidstrom shoots the puck at the blue line and it deflects off an opposing team player in front of the net, the NHL records "GOAL: Lidstrom, Slapshot, 60 feet."<BR/><BR/>Whereas, if Lidstrom shoots the same shot and it gets deflected the exact same way, but off Zetterberg, the NHL records "GOAL: Zetterberg, Tip-in, 5 feet."<BR/><BR/>So in the first example, the quality of shot is very different (and perhaps often due to a shot block attempt) than what is recorded and captured in the shot quality model.<BR/><BR/>Have you looked into this?Sunny Mehtahttps://www.blogger.com/profile/15065546462546932579noreply@blogger.com