January 29, 2020

Rugby Premiership Predictions for Round 10

Team Ratings for Round 10

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
Saracens 9.84 9.34 0.50
Exeter Chiefs 7.53 7.99 -0.50
Sale Sharks 3.88 0.17 3.70
Northampton Saints 1.67 0.25 1.40
Gloucester 1.37 0.58 0.80
Bath 0.16 1.10 -0.90
Harlequins -1.06 -0.81 -0.30
Bristol -2.00 -2.77 0.80
Wasps -2.00 0.31 -2.30
Leicester Tigers -2.99 -1.76 -1.20
Worcester Warriors -4.94 -2.69 -2.30
London Irish -5.24 -5.51 0.30

 

Performance So Far

So far there have been 54 matches played, 37 of which were correctly predicted, a success rate of 68.5%.
Here are the predictions for last week’s games.

Game Date Score Prediction Correct
1 Bath vs. Leicester Tigers Jan 25 13 – 10 8.30 TRUE
2 Bristol vs. Gloucester Jan 25 34 – 16 -0.80 FALSE
3 Exeter Chiefs vs. Sale Sharks Jan 25 19 – 22 9.50 FALSE
4 Harlequins vs. Saracens Jan 25 41 – 14 -9.80 FALSE
5 Northampton Saints vs. London Irish Jan 25 16 – 20 13.20 FALSE
6 Worcester Warriors vs. Wasps Jan 25 26 – 30 2.30 FALSE

 

Predictions for Round 10

Here are the predictions for Round 10. 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 Gloucester vs. Exeter Chiefs Feb 15 Exeter Chiefs -1.70
2 Harlequins vs. London Irish Feb 15 Harlequins 8.70
3 Leicester Tigers vs. Wasps Feb 15 Leicester Tigers 3.50
4 Northampton Saints vs. Bristol Feb 15 Northampton Saints 8.20
5 Saracens vs. Sale Sharks Feb 15 Saracens 10.50
6 Worcester Warriors vs. Bath Feb 15 Bath -0.60

 

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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 »