Is OPR an accurate measurement system?

[logank013]

Ed law in the past has created some amazing data sheets. He along with these data sheets also made http://file:///home/chronos/u-8e3fa3...ation_2014.pdf
this cool powerpoint explaining opr and ccwm

[joelg236]

Originally Posted by logank013

Ed law in the past has created some amazing data sheets. He along with these data sheets also made http://file:///home/chronos/u-8e3fa3...ation_2014.pdf
this cool powerpoint explaining opr and ccwm

You linked to a local file on your computer, I think you meant this.

[logank013]

Originally Posted by joelg236

You linked to a local file on your computer, I think you meant this.

Yep you're right. I always forget chromebooks do stupid things. It seems like they randomly generated a link for that pdf that I downloaded since chromebooks do hardly anything offline

[Chris is me]

What OPR / CCWM always excelled at wasn't in being an absolute ranking of teams. It is a better sort than average score or ranking.

In games where the scoring actions of different teammates are more separable, like in 2010 or 2013, OPR is more accurate. In games where scoring actions are less separable, like 2014, OPR is much less accurate.

OPR never will be better than actual data at ranking the quality of teams, and a team's OPR will never exactly match the team's actual scoring point. It's just a rough starting point that is a better place to start than other methods in the absence of actual match data.

[CalTran]

Karthik's views on OPR. YMMV.