May 23, 2023

NRL Predictions for Round 13

Team Ratings for Round 13

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
Panthers 13.03 12.99 0.00
Rabbitohs 9.85 9.35 0.50
Storm 5.97 11.21 -5.20
Eels 4.63 6.78 -2.10
Sharks 3.49 4.50 -1.00
Roosters 1.09 7.64 -6.60
Broncos 0.33 -5.92 6.30
Raiders -0.48 1.98 -2.50
Cowboys -1.96 6.23 -8.20
Dragons -2.75 -2.73 -0.00
Sea Eagles -3.75 -5.26 1.50
Dolphins -4.63 -10.00 5.40
Warriors -5.46 -11.12 5.70
Titans -6.32 -6.32 -0.00
Wests Tigers -6.81 -13.52 6.70
Bulldogs -8.89 -8.29 -0.60
Knights -9.31 -9.53 0.20

 

Performance So Far

So far there have been 96 matches played, 54 of which were correctly predicted, a success rate of 56.2%.
Here are the predictions for last week’s games.

Game Date Score Prediction Correct
1 Broncos vs. Panthers May 18 4 – 15 -9.30 TRUE
2 Dragons vs. Roosters May 19 24 – 22 -1.60 FALSE
3 Rabbitohs vs. Eels May 19 16 – 36 11.70 FALSE
4 Sharks vs. Knights May 20 26 – 6 14.60 TRUE
5 Wests Tigers vs. Cowboys May 20 66 – 18 -7.30 FALSE
6 Dolphins vs. Storm May 20 16 – 24 -7.50 TRUE
7 Bulldogs vs. Titans May 21 20 – 18 -0.00 FALSE
8 Raiders vs. Sea Eagles May 21 14 – 42 10.30 FALSE

 

Predictions for Round 13

Here are the predictions for Round 13. 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 Dolphins vs. Dragons May 25 Dolphins 1.10
2 Eels vs. Cowboys May 26 Eels 9.60
3 Warriors vs. Broncos May 27 Warriors 0.20
4 Rabbitohs vs. Raiders May 27 Rabbitohs 13.30
5 Knights vs. Sea Eagles May 28 Sea Eagles -2.60

 

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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 »