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The Roar

Brendon Shields

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Joined June 2022

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Data analyst with Rugbycology, a chronological way of studying rugby union to improve play efficiency.

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Thanks mate.

Needing 6 phases to score is not always that efficient. It was Ireland undoing under Joe. Every ruck has risk.

Rugbycology: 'Coach killers' - High Risk Errors and what they tell us about the four Rugby Championship rivals

Very valid observation.

Rugbycology: 'Coach killers' - High Risk Errors and what they tell us about the four Rugby Championship rivals

Thanks Tim

Rugbycology: 'Coach killers' - High Risk Errors and what they tell us about the four Rugby Championship rivals

You are absolutely right. Marika fielding, and the predictability is brings – may be something the Wallabies also prefer. However you cannot refute the data over 2021 where the Wallabies restart exit is clearly shown to have worse outcomes than the rest.

I dont think Marika is to blame here at all. I do however argue that Marika has an opportunity to mix things up and offer an element of surprise.

RUGBYCOLOGY: The Wallabies player rival teams target at the restart, and why he's a weakness

No single aspect of a game (such as the restart platform) will mean the difference between losing and winning for any team. However when we look at a higher win % over time – or even dominance – we have to isolate those parts of teams that prevent them from performing optimally. The Wallabies have ironed out so many weaknesses in their game – but this one lingers.

Similarly Ireland may have the best restart, but they have other issues.

RUGBYCOLOGY: The Wallabies player rival teams target at the restart, and why he's a weakness

I just always prefer 2 digits because there are stats where it makes a difference. For example passes per ruck. Often two teams will register 1 each. But add one digit and its 0.8 each. Add another, and its 0.76 and 0.79: Eureka!

For uniformity I then always just work with two digits.

RUGBYCOLOGY: The Wallabies player rival teams target at the restart, and why he's a weakness

Oh yes I hear you.

The system I work with always calculates in % because we measure lots of games over time. As soon as you have 2 or more games, noting totals as opposed to % values will be more confusing.

RUGBYCOLOGY: The Wallabies player rival teams target at the restart, and why he's a weakness

Indeed Adam, or Marika could change his behavior. We achieved a lot this past Saturday for example by Kerevi suddenly kicking.

RUGBYCOLOGY: The Wallabies player rival teams target at the restart, and why he's a weakness

Hey mate, these are % values of the outcomes of all restarts (22/50/goal line) – it does not represent the amount of times they occur.

RUGBYCOLOGY: The Wallabies player rival teams target at the restart, and why he's a weakness

Thanks Francis.

RUGBYCOLOGY: The Wallabies player rival teams target at the restart, and why he's a weakness

Yes I often wonder that. Do kickers seek him out or is it that the wallabies choose to field him on that spot at that angle?

RUGBYCOLOGY: The Wallabies player rival teams target at the restart, and why he's a weakness

I think it shows why the two can compliment each other. Analytics is just a short cut to helping coaches focus on what most important. But you need video to catch the detail.

RUGBYCOLOGY: The Wallabies player rival teams target at the restart, and why he's a weakness

Indeed. Our kick return has seen a steady improvement in 2021, only to dip a bit again this week.

RUGBYCOLOGY: The Wallabies player rival teams target at the restart, and why he's a weakness

Unfortunately not Mirt.

RUGBYCOLOGY: The Wallabies player rival teams target at the restart, and why he's a weakness

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