Richmond's Jack Graham is ranked fourth overall by average, but tops the ladder for an individual performance; in the Tigers' opening-round win over Carlton, the 20-year-old racked up 105.6 points.
He's the only player to have cleared 100 points this season.
Top 10 pressure players of 2018Rank Player Average per game
1. Devon Smith 72.2
2. Dayne Zorko 65.9
3. Clayton Oliver 63.0
4. Tim Taranto 63.0
5. Jack Graham 62.46. Hugh Greenwood 61.2
7. Liam Shiels 60.8
8. Brad Ebert 60.4
9. Corey Maynard 60.0
10. Brad Scheer 59.6
Champion Data measure four levels of pressure players can apply; corralling, chasing, closing and physical.
Each level is worth a certain amount of points, which is worked out by how much harder it is for the opposition to record an effective disposal from that pressure, compared to when they are under no pressure.
Corralling, when the player guards a space so an opponent is limited with his run and where he can go, is worth 1.2 points.
Chasing a player from behind and gaining ground is worth 1.5 points.
Closing a player down from in front or to the side of his disposal is worth 2.25 points.
And,
physical pressure – when a player gets a hand to a player while he is disposing of the ball – is worth 3.75 points.
Therefore, it's possible for a player to record a high number of pressure acts but accumulate a low number of points, if the acts aren't specifically closing or physical.
http://www.afl.com.au/news/2018-05-15/how-a-new-don-became-the-leagues-pressure-king