September 20, 2022

NRL Predictions for the Preliminary Finals

Team Ratings for the Preliminary Finals

The basic method is described on my Department home page.
Here are the team ratings prior to this week’s games, along with the ratings at the start of the season.

Current Rating Rating at Season Start Difference
Storm 11.21 19.20 -8.00
Panthers 11.14 14.26 -3.10
Rabbitohs 10.51 15.81 -5.30
Roosters 7.64 2.23 5.40
Eels 6.93 2.54 4.40
Cowboys 6.78 -12.27 19.00
Sharks 4.50 -1.10 5.60
Raiders 1.98 -1.10 3.10
Dragons -2.73 -7.99 5.30
Sea Eagles -5.26 10.99 -16.30
Broncos -5.92 -8.90 3.00
Titans -6.32 1.05 -7.40
Bulldogs -8.29 -10.25 2.00
Knights -9.53 -6.54 -3.00
Warriors -11.12 -8.99 -2.10
Wests Tigers -13.52 -10.94 -2.60

 

Performance So Far

So far there have been 198 matches played, 135 of which were correctly predicted, a success rate of 68.2%.
Here are the predictions for last week’s games.

Game Date Score Prediction Correct
1 Eels vs. Raiders Sep 16 40 – 4 4.40 TRUE
2 Sharks vs. Rabbitohs Sep 17 12 – 38 -3.40 TRUE

 

Predictions for the Preliminary Finals

Here are the predictions for the Preliminary Finals. The prediction is my estimated expected points difference with a positive margin being a win to the home team, and a negative margin a win to the away team.

Game Date Winner Prediction
1 Cowboys vs. Eels Sep 23 Cowboys 2.80
2 Panthers vs. Rabbitohs Sep 24 Panthers 0.60

 

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David Scott obtained a BA and PhD from the Australian National University and then commenced his university teaching career at La Trobe University in 1972. He has taught at La Trobe University, the University of Sheffield, Bond University and Colorado State University, joining the University of Auckland, based at Tamaki Campus, in mid-1995. He has been Head of Department at La Trobe University, Acting Dean and Associate Dean (Academic) at Bond University, and Associate Director of the Centre for Quality Management and Data Analysis at Bond University with responsibility for Short Courses. He was Head of the Department of Statistics in 2000, and is a past President of the New Zealand Statistical Assocation. See all posts by David Scott »