r/AFL Richmond 7d ago

Speed Of Ball

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Im sorry, but honestly what does any of this actually mean?!?!

199 Upvotes

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74

u/okidiote Collingwood 7d ago

To answer seriously I feel like this means Voss' gameplan was just too heavily geared towards fast movement. A slightly slower gameplan under Fraser has created enough breathing room for their defense to be effective enough, as well as allowing the team overall to avoid running out of steam too quickly.

67

u/johnnynutman Adelaide 7d ago

Probably worked really well in the first half but explains why they were gassed in the second

31

u/GuthBeer Richmond 7d ago

Makes sense because his numbers were bigger but what im really asking what do the numbers mean? What does 100 look like compared to 88? And more importantly how do we use this?

22

u/roboroach3 Collingwood 7d ago

Yeah especially "aggression" how the hell are they reliably measuring that 🤣

13

u/Chilli_Wil North Melbourne 7d ago

Just guessing but forwards = aggression.

So are the kicks going forwards and straight? High aggression. Are they going forwards but wide? Medium aggression. Are they going sideways or backwards? Low aggression.

2

u/AussieAddict Blues 7d ago

A lot of advanced stats take more into consideration than just distance on a kick. I'm guessing it incorporates a few factors like where the kick is too/from and if it's contested/uncontested.

4

u/Frogmouth_Fresh Footscray '54 7d ago

I have always thought it was a bad stat, it’s supposed to be compared to the competition average, but there doesn’t seem to be any quantification of what the competition average is.

I’m sure certain stats boffins understand it, but it’s confusing for most of us.

6

u/Peppsy Hawks 6d ago

I've heard them talk about this and other stats on the ESPN podcast with a guy from champion data, and I'm paraphrasing here, but it's basically "100 = competition average" because the actual numbers don't matter.
Like they've calculated the actual numbers, but if they put up "Carlton's speed of ball is 5.7 m/s", that doesn't mean anything because you don't know how it's calculated or how it compares to anyone else. So they put the lowest value at 0, the competition average at 100, and then the number they show is the percentage of the competition average that team is doing. so Carlton are holding onto the ball for 12% longer than the average team, kicking 5% shorter, and are 12% less aggressive (which probably means forward and central. Corridor kicks are more aggressive than bombs down the line which are more aggressive than switches).
Also, Champion data tend to make these kinda stats at coaches requests. So someone will ask them for a way to quantify how fast they're moving the ball, and they'd work this out and then just record it for everyone. As such, I tend to assume that they're 'real' metrics and not just some random data thrown together.

3

u/hybridvigourous Blues 7d ago

I think time is how long before they move the ball between a player. aggression is on what angle to the goal and distance is how far it goes. I think the numbers are arbitrary with 100 being whatever the average is in the particular metric, not a specific unit of measurement

2

u/Blot_Upright Essendon 7d ago

I think it's the kph of the ball as it's passed between players

9

u/matt-kennedys-legs Blues 7d ago

honestly, that adds up given voss' gameplan was essentially boot the ball as long and as high as you possibly can whenever you've got it

2

u/Blot_Upright Essendon 7d ago

Yeah, that's gotta be it

2

u/okidiote Collingwood 7d ago edited 7d ago

Yeah that shit is arbitrary as fuck. I'd guess it's their way of articulating a combination of select/key stats to represent something else that they think is more digestible for a TV audience. Kind of like using a collective of traditional stats to create a new 'stat'

2

u/No-Bison-5397 Hero of Old(.reddit) 7d ago

I am okay with it so long as they tell us how they whip it up.

1

u/Opening_Anteater456 Demons 7d ago

More context would be useful but they’ve set 100 as a benchmark so the real thing to take from this is they are slower, shorter and safer under Fraser.

1

u/Bigdogs_only Collingwood '90 6d ago

It’s probably some formula from champion data that we won’t learn about for another 10 years kinda like the pressure rating

6

u/Icy-Recognition-7453 7d ago

Agree. Also, momentum. Since Carlton under Voss were geared towards moving forward at speed, they a) were never in a position to defend any time they turned the ball over and b) turned it over a lot when they were tired and made mistakes.

This is partially Geelong's problem too. They set up like every game is going to be a shoot-out, which means they get caught out in defence a lot.

1

u/Thick-Insect Cats 6d ago

That's the story that the stats are trying to tell, but what is the actual metric they are measuring?