July 3, 2018

NRL Predictions for Round 17

Team Ratings for Round 17

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 9.37 16.73 -7.40
Dragons 3.94 -0.45 4.40
Rabbitohs 3.87 -3.90 7.80
Roosters 3.60 0.13 3.50
Sharks 2.72 2.20 0.50
Raiders 2.44 3.50 -1.10
Panthers 2.35 2.64 -0.30
Broncos 0.79 4.78 -4.00
Cowboys -0.57 2.97 -3.50
Warriors -1.57 -6.97 5.40
Bulldogs -2.82 -3.43 0.60
Sea Eagles -3.50 -1.07 -2.40
Titans -3.62 -8.91 5.30
Wests Tigers -5.06 -3.63 -1.40
Eels -5.43 1.51 -6.90
Knights -8.83 -8.43 -0.40

 

Performance So Far

So far there have been 124 matches played, 73 of which were correctly predicted, a success rate of 58.9%.
Here are the predictions for last week’s games.

Game Date Score Prediction Correct
1 Dragons vs. Eels Jun 28 20 – 18 14.10 TRUE
2 Warriors vs. Sharks Jun 29 15 – 18 0.70 FALSE
3 Roosters vs. Storm Jun 29 8 – 9 -3.10 TRUE
4 Panthers vs. Sea Eagles Jun 30 10 – 18 11.60 FALSE
5 Knights vs. Bulldogs Jun 30 16 – 36 -0.20 TRUE
6 Broncos vs. Raiders Jun 30 26 – 22 0.90 TRUE
7 Wests Tigers vs. Titans Jul 01 12 – 30 4.70 FALSE
8 Rabbitohs vs. Cowboys Jul 01 21 – 20 8.50 TRUE

 

Predictions for Round 17

Here are the predictions for Round 17. 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 Storm vs. Dragons Jul 05 Storm 8.40
2 Panthers vs. Warriors Jul 06 Panthers 8.40
3 Bulldogs vs. Raiders Jul 07 Raiders -2.30
4 Titans vs. Broncos Jul 08 Broncos -1.40

 

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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 »