August 3, 2016

NRL Predictions for Round 22

Team Ratings for Round 22

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 10.95 4.41 6.50
Cowboys 10.09 10.29 -0.20
Sharks 7.34 -1.06 8.40
Raiders 5.51 -0.55 6.10
Bulldogs 2.41 1.50 0.90
Broncos 1.49 9.81 -8.30
Sea Eagles 0.24 0.36 -0.10
Panthers 0.06 -3.06 3.10
Titans -0.34 -8.39 8.00
Roosters -0.67 11.20 -11.90
Warriors -1.67 -7.47 5.80
Eels -2.21 -4.62 2.40
Wests Tigers -2.28 -4.06 1.80
Dragons -5.68 -0.10 -5.60
Rabbitohs -8.47 -1.20 -7.30
Knights -15.11 -5.41 -9.70

 

Performance So Far

So far there have been 152 matches played, 95 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. Broncos Jul 28 32 – 16 -1.60 FALSE
2 Bulldogs vs. Dragons Jul 29 13 – 10 12.40 TRUE
3 Warriors vs. Panthers Jul 30 20 – 17 2.10 TRUE
4 Eels vs. Wests Tigers Jul 30 8 – 23 6.00 FALSE
5 Cowboys vs. Storm Jul 30 8 – 16 3.80 FALSE
6 Rabbitohs vs. Raiders Jul 31 4 – 54 -5.00 TRUE
7 Sea Eagles vs. Knights Jul 31 36 – 16 18.00 TRUE
8 Titans vs. Sharks Aug 01 18 – 18 -5.60 FALSE

 

Predictions for Round 22

Here are the predictions for Round 22. 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 Dragons vs. Broncos Aug 04 Broncos -4.20
2 Eels vs. Sea Eagles Aug 05 Eels 0.60
3 Knights vs. Bulldogs Aug 06 Bulldogs -14.50
4 Sharks vs. Raiders Aug 06 Sharks 4.80
5 Storm vs. Rabbitohs Aug 06 Storm 22.40
6 Titans vs. Warriors Aug 07 Titans 5.30
7 Wests Tigers vs. Cowboys Aug 07 Cowboys -9.40
8 Panthers vs. Roosters Aug 08 Panthers 3.70

 

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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 »