I'm sure Opta, a company whose only service is providing sports stats, don't put as much thought into sports stats as we do. :lol:
Penalties "won" do not count as turnovers, clearly.
Okay, maybe I was being overly harsh. Opta appear to be fairly comprehensive, but they are completely stakeholder driven. If their customers don't want the data, they won't produce it.
ESPN attempt to produce layperson-friendly statistics, and they do it terribly e.g.:
They do not even present the number of minutes a player is on the pitch in a game and you have to work it out from their timeline, something you would suspect is one of the most basic pieces of data needed for any kind of accurate analysis.
They presented data in a column called "Turnovers" (not in the current design, but the previous one), and expected users to realise that this actually refers to the number of turnovers given away rather than won.
They failed to capture data on something as basic as number of rucks hit, a vital piece of information to determine the work rate of a player.
The defensive data provided is tackles and missed tackles.
I guess we will have to agree to disagree on the issue of whether penalties won count as turnovers.