April 9, 2019

NRL Predictions for Round 5

Team Ratings for Round 5

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 9.41 8.72 0.70
Storm 7.98 6.03 1.90
Rabbitohs 5.13 3.89 1.20
Sharks 3.65 3.90 -0.30
Raiders 3.10 1.81 1.30
Broncos 1.08 2.63 -1.50
Dragons -1.02 0.06 -1.10
Warriors -2.12 -0.27 -1.80
Bulldogs -2.20 -0.61 -1.60
Eels -2.37 -6.17 3.80
Panthers -2.53 0.93 -3.50
Sea Eagles -3.19 -5.61 2.40
Cowboys -3.23 0.15 -3.40
Wests Tigers -3.74 -5.57 1.80
Titans -5.19 -3.36 -1.80
Knights -6.75 -8.51 1.80

 

Performance So Far

So far there have been 32 matches played, 22 of which were correctly predicted, a success rate of 68.8%.
Here are the predictions for last week’s games.

Game Date Score Prediction Correct
1 Roosters vs. Broncos Apr 04 36 – 4 8.00 TRUE
2 Warriors vs. Titans Apr 05 26 – 10 6.20 TRUE
3 Panthers vs. Wests Tigers Apr 05 9 – 8 4.70 TRUE
4 Sea Eagles vs. Rabbitohs Apr 06 13 – 12 -6.30 FALSE
5 Cowboys vs. Raiders Apr 06 12 – 30 -0.90 TRUE
6 Eels vs. Sharks Apr 06 24 – 12 -5.50 FALSE
7 Storm vs. Bulldogs Apr 07 18 – 16 15.00 TRUE
8 Knights vs. Dragons Apr 07 12 – 13 -3.00 TRUE

 

Predictions for Round 5

Here are the predictions for Round 5. 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 Broncos vs. Wests Tigers Apr 11 Broncos 7.80
2 Titans vs. Panthers Apr 12 Titans 0.30
3 Cowboys vs. Storm Apr 12 Storm -8.20
4 Rabbitohs vs. Warriors Apr 13 Rabbitohs 11.80
5 Knights vs. Sea Eagles Apr 13 Sea Eagles -0.60
6 Sharks vs. Roosters Apr 13 Roosters -2.80
7 Dragons vs. Bulldogs Apr 14 Dragons 4.20
8 Raiders vs. Eels Apr 14 Raiders 8.50

 

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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 »