May 25, 2021

NRL Predictions for Round 12

Team Ratings for Round 12

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 20.76 14.53 6.20
Panthers 19.02 8.88 10.10
Roosters 8.05 10.25 -2.20
Eels 6.92 1.68 5.20
Sea Eagles 3.73 -4.77 8.50
Rabbitohs 3.37 7.73 -4.40
Raiders -2.00 6.98 -9.00
Warriors -2.32 -1.84 -0.50
Dragons -2.74 -4.95 2.20
Sharks -4.36 -0.76 -3.60
Wests Tigers -5.99 -3.07 -2.90
Titans -7.37 -7.22 -0.10
Knights -8.00 -2.61 -5.40
Cowboys -8.34 -8.05 -0.30
Broncos -9.72 -11.16 1.40
Bulldogs -12.99 -7.62 -5.40

 

Performance So Far

So far there have been 88 matches played, 61 of which were correctly predicted, a success rate of 69.3%.
Here are the predictions for last week’s games.

Game Date Score Prediction Correct
1 Cowboys vs. Knights May 20 36 – 20 -0.20 FALSE
2 Warriors vs. Wests Tigers May 21 30 – 26 3.60 TRUE
3 Sharks vs. Dragons May 21 13 – 12 1.50 TRUE
4 Titans vs. Bulldogs May 22 30 – 20 8.30 TRUE
5 Roosters vs. Broncos May 22 16 – 34 28.40 FALSE
6 Raiders vs. Storm May 22 10 – 34 -18.80 TRUE
7 Rabbitohs vs. Panthers May 23 12 – 56 -6.40 TRUE
8 Eels vs. Sea Eagles May 23 6 – 28 11.90 FALSE

 

Predictions for Round 12

Here are the predictions for Round 12. 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 Broncos vs. Storm May 27 Storm -27.50
2 Cowboys vs. Warriors May 28 Warriors -3.00
3 Wests Tigers vs. Dragons May 28 Dragons -0.20
4 Panthers vs. Bulldogs May 29 Panthers 35.00
5 Rabbitohs vs. Eels May 29 Eels -0.50
6 Roosters vs. Raiders May 29 Roosters 13.10
7 Sharks vs. Titans May 30 Sharks 6.00
8 Knights vs. Sea Eagles May 30 Sea Eagles -8.70

 

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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 »