JimClarkFan wrote:
I said it perhaps represents better the value of each individual overtake because there is no doubt it is harder to overtake a Ferrari than an HRT. And whilst the ratio is baised it at least takes into account where in the field the overtake was performed.
It doesn't do that, It rewards people who score a lot of points per overtake. It rewards people who are consistent. It rewards people who make few overtakes. And it rewards people who are in the fastest car as they get the most points.
i.e. Why does A Toro Rosso overtaking a Sauber for 9th not count as much as a Ferrari overtaking a McLaren for 3rd?
The best overtakes are between cars of similar performance, right? That doesn't just happen at the front of the grid.
Your score essentially measures consistency of position (which is the opposite of overtaking), with a bias towards the fastest cars.
An simplified example to show the flaws in your score:
Two drivers in the same car average 5th on the grid. They are both perfectly reliable and have no incidents.
Driver A overtakes 1 car every races, finishing an average of 4th.
Driver B overtakes 2 cars every race, finishing an average of 3rd.
Driver A scores higher in your system (points per overtake)!?! Whereas in the simple 'number of overtakes' system Driver B scores higher.
And if you add in Driver C who starts 12th every race in a poor car, overtakes 6 cars per race and finishes 6th, he would be worse than both in your score.
You have to look at the real world application, your model is not modeling what you think it is modeling.
In the 'perfect' situation described above, the results from your score are inverted to what they should be, so with imperfect data who knows what it is really doing (on top of the criticisms outlined above).
Besides, the original analysis DOES take into account passes only on top cars (which especially counts for the top guys), it excludes backmarkers, it factors in old tyres etc. It is not perfect, but having the 5 categories is better than just the total number of overtakes, even though it can still be improved further with more analysis.
JimClarkFan wrote:
Besides the point, all this makes the point I originally made valid. Overtakes is a stupid method of trying to analyse anything other than who had the most overtakes, which means nothing in any event without context which is not factored into the statistics in any way.
Just because the analysis is not perfect does not make it worthless. The world is not black and white, this is not a binary situation. Number of overtakes is a valid input into evaluating overtaking ability.
There is SOME merit in the numbers, though further refining would be useful (i.e. we can't just exclude the races where VET makes a lot of overtakes, as we would have to exclude other races that were wet/crazy or people were out of position)
My takeaways:
It seems that VET is not a bad passer (not saying that he is a good passer).
Alonso seems to have been very consistent and reliable in 2012 (never racing through the field from the back).
There probably isn't that much difference between the top guys.
My opinion (not backed by anything in particular, and not certain if I can defend it):
-ALO, HAM and VET are all good overtakers, I don't know if any are 'better' than the others.
-HAM is blazingly fast and goes for the overtake ASAP (think Senna style) and uses good strategy to do so (KERS usage etc). Sometimes this hurts him through tyre drop-off etc if it doesn't work immediately and he has had incidents in the past (esp 2011).
-ALO bides his time more (think Prost), often waiting for the time when the overtaking opportunity is in his advantage. Few incidents
-VET is somewhere in the middle (more incidents than HAM, less than ALO). He has some great recovery drives, but sometimes his ability is not as apparent because he is either out front or he is down on top speed (see last 3 years).
(again, just my opinion)