July 21, 2020

NRL Predictions for Round 11

Team Ratings for Round 11

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
Roosters 13.27 12.25 1.00
Storm 13.19 12.73 0.50
Raiders 6.55 7.06 -0.50
Eels 5.18 2.80 2.40
Panthers 4.10 -0.13 4.20
Rabbitohs 2.55 2.85 -0.30
Sharks 2.13 1.81 0.30
Wests Tigers 1.24 -0.18 1.40
Sea Eagles 0.15 1.05 -0.90
Knights -1.57 -5.92 4.40
Dragons -4.19 -6.14 1.90
Cowboys -5.84 -3.95 -1.90
Bulldogs -6.62 -2.52 -4.10
Warriors -8.21 -5.17 -3.00
Broncos -9.64 -5.53 -4.10
Titans -14.29 -12.99 -1.30

 

Performance So Far

So far there have been 80 matches played, 50 of which were correctly predicted, a success rate of 62.5%.
Here are the predictions for last week’s games.

Game Date Score Prediction Correct
1 Roosters vs. Raiders Jul 16 20 – 24 10.20 FALSE
2 Storm vs. Titans Jul 17 42 – 6 26.40 TRUE
3 Wests Tigers vs. Broncos Jul 17 48 – 0 9.80 TRUE
4 Dragons vs. Bulldogs Jul 18 28 – 22 4.00 TRUE
5 Rabbitohs vs. Knights Jul 18 18 – 20 7.20 FALSE
6 Sea Eagles vs. Eels Jul 18 22 – 18 -4.00 FALSE
7 Sharks vs. Warriors Jul 19 46 – 10 12.70 TRUE
8 Panthers vs. Cowboys Jul 19 22 – 10 11.90 TRUE

 

Predictions for Round 11

Here are the predictions for Round 11. 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 Eels vs. Wests Tigers Jul 23 Eels 5.90
2 Cowboys vs. Sea Eagles Jul 24 Sea Eagles -4.00
3 Broncos vs. Storm Jul 24 Storm -20.80
4 Roosters vs. Warriors Jul 25 Roosters 26.00
5 Sharks vs. Dragons Jul 25 Sharks 6.30
6 Raiders vs. Rabbitohs Jul 25 Raiders 6.00
7 Knights vs. Bulldogs Jul 26 Knights 7.00
8 Titans vs. Panthers Jul 26 Panthers -16.40

 

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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 »