April 6, 2021

NRL Predictions for Round 5

Team Ratings for Round 5

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 13.73 14.53 -0.80
Roosters 13.32 10.25 3.10
Panthers 12.62 8.88 3.70
Rabbitohs 11.02 7.73 3.30
Raiders 6.72 6.98 -0.30
Eels 5.09 1.68 3.40
Sharks 0.98 -0.76 1.70
Warriors -0.65 -1.84 1.20
Dragons -2.40 -4.95 2.60
Knights -3.57 -2.61 -1.00
Titans -5.05 -7.22 2.20
Wests Tigers -5.12 -3.07 -2.10
Broncos -10.31 -11.16 0.80
Sea Eagles -10.88 -4.77 -6.10
Bulldogs -13.22 -7.62 -5.60
Cowboys -14.26 -8.05 -6.20

 

Performance So Far

So far there have been 32 matches played, 24 of which were correctly predicted, a success rate of 75%.
Here are the predictions for last week’s games.

Game Date Score Prediction Correct
1 Sea Eagles vs. Panthers Apr 01 6 – 46 -16.50 TRUE
2 Bulldogs vs. Rabbitohs Apr 02 0 – 38 -17.80 TRUE
3 Storm vs. Broncos Apr 02 40 – 6 25.50 TRUE
4 Sharks vs. Cowboys Apr 03 48 – 10 14.20 TRUE
5 Titans vs. Raiders Apr 03 4 – 20 -7.20 TRUE
6 Knights vs. Dragons Apr 04 13 – 22 4.10 FALSE
7 Roosters vs. Warriors Apr 04 32 – 12 16.30 TRUE
8 Wests Tigers vs. Eels Apr 05 22 – 36 -5.70 TRUE

 

Predictions for Round 5

Here are the predictions for Round 5. 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. Broncos Apr 08 Rabbitohs 24.30
2 Warriors vs. Sea Eagles Apr 09 Warriors 10.20
3 Panthers vs. Raiders Apr 09 Panthers 8.90
4 Titans vs. Knights Apr 10 Titans 1.50
5 Bulldogs vs. Storm Apr 10 Storm -24.00
6 Roosters vs. Sharks Apr 10 Roosters 15.30
7 Wests Tigers vs. Cowboys Apr 11 Wests Tigers 12.10
8 Eels vs. Dragons Apr 11 Eels 10.50

 

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 »