August 28, 2018

NRL Predictions for Round 25

Team Ratings for Round 25

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 8.91 16.73 -7.80
Sharks 4.97 2.20 2.80
Roosters 4.68 0.13 4.50
Broncos 4.21 4.78 -0.60
Raiders 1.96 3.50 -1.50
Rabbitohs 1.62 -3.90 5.50
Cowboys -0.09 2.97 -3.10
Warriors -0.10 -6.97 6.90
Bulldogs -0.12 -3.43 3.30
Panthers -1.50 2.64 -4.10
Wests Tigers -3.10 -3.63 0.50
Titans -3.84 -8.91 5.10
Dragons -3.87 -0.45 -3.40
Eels -4.00 1.51 -5.50
Sea Eagles -4.02 -1.07 -3.00
Knights -8.04 -8.43 0.40

 

Performance So Far

So far there have been 184 matches played, 112 of which were correctly predicted, a success rate of 60.9%.
Here are the predictions for last week’s games.

Game Date Score Prediction Correct
1 Wests Tigers vs. Sea Eagles Aug 23 22 – 20 4.20 TRUE
2 Warriors vs. Panthers Aug 24 36 – 16 3.60 TRUE
3 Cowboys vs. Eels Aug 24 44 – 6 1.80 TRUE
4 Raiders vs. Rabbitohs Aug 25 24 – 12 1.90 TRUE
5 Titans vs. Storm Aug 25 8 – 10 -11.00 TRUE
6 Roosters vs. Broncos Aug 25 8 – 22 6.30 FALSE
7 Sharks vs. Knights Aug 26 38 – 12 14.40 TRUE
8 Dragons vs. Bulldogs Aug 26 0 – 38 5.30 FALSE

 

Predictions for Round 25

Here are the predictions for Round 25. 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 Rabbitohs vs. Wests Tigers Aug 30 Rabbitohs 7.70
2 Warriors vs. Raiders Aug 31 Warriors 2.40
3 Storm vs. Panthers Aug 31 Storm 13.40
4 Knights vs. Dragons Sep 01 Dragons -1.20
5 Titans vs. Cowboys Sep 01 Cowboys -0.70
6 Eels vs. Roosters Sep 01 Roosters -5.70
7 Bulldogs vs. Sharks Sep 02 Sharks -2.10
8 Broncos vs. Sea Eagles Sep 02 Broncos 11.20

 

avatar

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 »