Quote:
Originally Posted by Jared Russell
Maybe for an average qualifications alliance, but not for an average eliminations alliance. Many useful robot attributes cannot be demonstrated in every qualification match due to random alliance pairings. Examples:
1. A great defensive robot doesn't have a big impact in matches where the other alliance would not have been scoring a lot of points anyway.
2. Catching robots require someone to provide a controlled truss shot.
3. Inbounders and assisters require someone to inbound to/assist to.
In each, case, OPR/CCWM will tend to systemically underrate these attributes since they are only utilized in a subset of qualification matches and (in most cases) will have their dependencies met in elims. High goal scorers and truss shooters can manufacture pretty good scores by themselves and are therefore comparatively overrated by OPR/CCWM.
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While I do agree that OPR can underrate these types of teams, I think we're all forgetting exactly how OPR works. Teams that consistently play on high scoring alliances will continue to get a higher OPR. Thus, teams who are very good at facilitating alliance partners, (Strong inbounding, passing, catching, etc) will eventually rise to the top. As Sean mentioned earlier, the sample size may not be large enough to filter out all the issues that Jarred mentioned above, but it's still a pretty decent metric, and definitely a useful tool when analyzing the results of an event where you have no/limited access to match video, or no time to watch and breakdown all the video.