April 15, 2015

NRL Predictions for Round 7

Team Ratings for Round 7

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
Rabbitohs 9.55 13.06 -3.50
Roosters 8.65 9.09 -0.40
Cowboys 8.27 9.52 -1.30
Storm 4.98 4.36 0.60
Broncos 4.92 4.03 0.90
Panthers 3.02 3.69 -0.70
Warriors 1.24 3.07 -1.80
Dragons 0.06 -1.74 1.80
Bulldogs -0.19 0.21 -0.40
Knights -1.23 -0.28 -1.00
Sea Eagles -2.36 2.68 -5.00
Raiders -6.00 -7.09 1.10
Eels -7.29 -7.19 -0.10
Wests Tigers -7.31 -13.13 5.80
Sharks -7.35 -10.76 3.40
Titans -7.62 -8.20 0.60

 

Performance So Far

So far there have been 48 matches played, 25 of which were correctly predicted, a success rate of 52.1%.

Here are the predictions for last week’s games.

Game Date Score Prediction Correct
1 Broncos vs. Roosters Apr 10 22 – 18 -1.50 FALSE
2 Sharks vs. Knights Apr 10 22 – 6 -6.20 FALSE
3 Eels vs. Titans Apr 11 16 – 38 7.30 FALSE
4 Panthers vs. Sea Eagles Apr 11 22 – 12 8.10 TRUE
5 Warriors vs. Wests Tigers Apr 11 32 – 22 13.00 TRUE
6 Dragons vs. Bulldogs Apr 12 31 – 6 -0.20 FALSE
7 Raiders vs. Storm Apr 12 10 – 14 -8.70 TRUE
8 Rabbitohs vs. Cowboys Apr 13 12 – 30 7.80 FALSE

 

Predictions for Round 7

Here are the predictions for Round 7. 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 Bulldogs vs. Sea Eagles Apr 17 Bulldogs 5.20
2 Dragons vs. Broncos Apr 17 Broncos -1.90
3 Cowboys vs. Warriors Apr 18 Cowboys 11.00
4 Storm vs. Roosters Apr 18 Roosters -0.70
5 Titans vs. Panthers Apr 18 Panthers -7.60
6 Knights vs. Eels Apr 19 Knights 9.10
7 Wests Tigers vs. Raiders Apr 19 Wests Tigers 1.70
8 Sharks vs. Rabbitohs Apr 20 Rabbitohs -13.90

 

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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 »