July 12, 2017

NRL Predictions for Round 19

Team Ratings for Round 19

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 7.40 8.49 -1.10
Cowboys 5.61 6.90 -1.30
Sharks 4.64 5.84 -1.20
Broncos 3.58 4.36 -0.80
Sea Eagles 3.00 -2.98 6.00
Raiders 2.64 9.94 -7.30
Panthers 1.97 6.08 -4.10
Roosters 1.07 -1.17 2.20
Rabbitohs -0.38 -1.82 1.40
Eels -0.41 -0.81 0.40
Warriors -1.42 -6.02 4.60
Dragons -3.07 -7.74 4.70
Titans -3.49 -0.98 -2.50
Bulldogs -4.36 -1.34 -3.00
Wests Tigers -6.91 -3.89 -3.00
Knights -11.93 -16.94 5.00

 

Performance So Far

So far there have been 130 matches played, 77 of which were correctly predicted, a success rate of 59.2%.
Here are the predictions for last week’s games.

Game Date Score Prediction Correct
1 Roosters vs. Rabbitohs Jul 07 14 – 12 5.60 TRUE
2 Panthers vs. Sea Eagles Jul 08 16 – 8 1.40 TRUE
3 Storm vs. Eels Jul 08 6 – 22 16.20 FALSE
4 Bulldogs vs. Knights Jul 09 20 – 18 12.80 TRUE

 

Predictions for Round 19

Here are the predictions for Round 19. 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 Warriors vs. Panthers Jul 14 Warriors 0.60
2 Raiders vs. Dragons Jul 14 Raiders 9.20
3 Knights vs. Broncos Jul 15 Broncos -12.00
4 Titans vs. Sharks Jul 15 Sharks -4.60
5 Sea Eagles vs. Wests Tigers Jul 16 Sea Eagles 13.40
6 Rabbitohs vs. Cowboys Jul 16 Cowboys -2.50

 

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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 »