June 14, 2018

NRL Predictions for Round 15

Team Ratings for Round 15

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 9.18 16.73 -7.60
Panthers 5.61 2.64 3.00
Dragons 3.86 -0.45 4.30
Rabbitohs 3.55 -3.90 7.40
Sharks 3.18 2.20 1.00
Roosters 1.56 0.13 1.40
Raiders -0.02 3.50 -3.50
Broncos -0.14 4.78 -4.90
Cowboys -0.14 2.97 -3.10
Wests Tigers -0.79 -3.63 2.80
Bulldogs -2.08 -3.43 1.30
Warriors -2.27 -6.97 4.70
Sea Eagles -3.94 -1.07 -2.90
Eels -5.44 1.51 -7.00
Knights -7.12 -8.43 1.30
Titans -7.33 -8.91 1.60

 

Performance So Far

So far there have been 108 matches played, 65 of which were correctly predicted, a success rate of 60.2%.
Here are the predictions for last week’s games.

Game Date Score Prediction Correct
1 Raiders vs. Panthers Jun 08 22 – 23 -2.90 TRUE
2 Titans vs. Rabbitohs Jun 08 16 – 18 -8.80 TRUE
3 Sea Eagles vs. Warriors Jun 09 14 – 34 6.50 FALSE
4 Knights vs. Roosters Jun 09 16 – 18 -6.30 TRUE
5 Eels vs. Cowboys Jun 09 20 – 14 -3.70 FALSE
6 Sharks vs. Wests Tigers Jun 10 24 – 16 6.80 TRUE
7 Storm vs. Broncos Jun 10 32 – 16 11.70 TRUE
8 Bulldogs vs. Dragons Jun 11 16 – 18 -3.10 TRUE

 

Predictions for Round 15

Here are the predictions for Round 15. 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. Rabbitohs Jun 14 Rabbitohs -6.00
2 Cowboys vs. Warriors Jun 15 Cowboys 6.60
3 Roosters vs. Panthers Jun 15 Panthers -1.10
4 Bulldogs vs. Titans Jun 16 Bulldogs 8.20
5 Dragons vs. Sea Eagles Jun 16 Dragons 10.80
6 Sharks vs. Broncos Jun 16 Sharks 6.30
7 Knights vs. Storm Jun 17 Storm -13.30
8 Wests Tigers vs. Raiders Jun 17 Wests Tigers 2.20

 

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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 »