March 2, 2021

Rugby Premiership 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
Exeter Chiefs 6.01 7.35 -1.30
Bristol 3.75 1.28 2.50
Sale Sharks 3.27 4.96 -1.70
Harlequins 1.51 -1.08 2.60
Wasps 0.48 5.66 -5.20
Northampton Saints -0.75 -2.48 1.70
Bath -1.85 2.14 -4.00
Gloucester -2.86 -1.02 -1.80
Leicester Tigers -4.58 -6.14 1.60
London Irish -5.03 -8.05 3.00
Newcastle Falcons -5.78 -10.00 4.20
Worcester Warriors -7.27 -5.71 -1.60

 

Performance So Far

So far there have been 59 matches played, 33 of which were correctly predicted, a success rate of 55.9%.
Here are the predictions for last week’s games.

Game Date Score Prediction Correct
1 Bristol vs. Leicester Tigers Feb 28 17 – 3 12.60 TRUE
2 Gloucester vs. Worcester Warriors Feb 28 22 – 14 9.10 TRUE
3 Newcastle Falcons vs. Harlequins Feb 28 25 – 22 -3.60 FALSE
4 Northampton Saints vs. Bath Mar 01 22 – 23 6.50 FALSE
5 Sale Sharks vs. Exeter Chiefs Feb 27 25 – 20 1.20 TRUE
6 Wasps vs. London Irish Feb 28 10 – 16 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 Bath vs. Exeter Chiefs Mar 07 Exeter Chiefs -3.40
2 Harlequins vs. Northampton Saints Mar 08 Harlequins 6.80
3 Leicester Tigers vs. London Irish Mar 06 Leicester Tigers 4.90
4 Sale Sharks vs. Newcastle Falcons Mar 06 Sale Sharks 13.60
5 Wasps vs. Gloucester Mar 07 Wasps 7.80
6 Worcester Warriors vs. Bristol Mar 07 Bristol -6.50

 

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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 »