August 14, 2020

Rugby Premiership Predictions for Round 14

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Team Ratings for Round 14

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 10.34 7.99 2.30
Saracens 7.45 9.34 -1.90
Sale Sharks 6.33 0.17 6.20
Wasps 1.43 0.31 1.10
Bristol -0.43 -2.77 2.30
Gloucester -0.49 0.58 -1.10
Northampton Saints -0.62 0.25 -0.90
Bath -1.61 1.10 -2.70
Harlequins -2.03 -0.81 -1.20
Leicester Tigers -3.41 -1.76 -1.70
Worcester Warriors -5.10 -2.69 -2.40
London Irish -5.65 -5.51 -0.10

 

Performance So Far

So far there have been 78 matches played, 52 of which were correctly predicted, a success rate of 66.7%.
Here are the predictions for last week’s games.

Game Date Score Prediction Correct
1 Bristol vs. Harlequins Mar 07 28 – 15 5.20 TRUE
2 Exeter Chiefs vs. Bath Mar 07 57 – 20 14.20 TRUE
3 Sale Sharks vs. London Irish Mar 07 39 – 0 14.00 TRUE
4 Saracens vs. Leicester Tigers Mar 07 24 – 13 16.00 TRUE
5 Wasps vs. Gloucester Mar 07 39 – 22 5.10 TRUE
6 Worcester Warriors vs. Northampton Saints Mar 07 10 – 16 0.80 FALSE

 

Predictions for Round 14

Here are the predictions for Round 14. 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 Harlequins vs. Sale Sharks Aug 15 Sale Sharks -3.90
2 Worcester Warriors vs. Gloucester Aug 15 Gloucester -0.10
3 Exeter Chiefs vs. Leicester Tigers Aug 15 Exeter Chiefs 18.20
4 Bath vs. London Irish Aug 16 Bath 8.50
5 Bristol vs. Saracens Aug 16 Saracens -3.40
6 Northampton Saints vs. Wasps Aug 17 Northampton Saints 2.50

 

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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 »