April 20, 2021

Rugby Premiership Predictions for Round 17

Team Ratings for Round 17

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 6.42 7.35 -0.90
Bristol 4.65 1.28 3.40
Harlequins 4.44 -1.08 5.50
Sale Sharks 3.52 4.96 -1.40
Northampton Saints 1.03 -2.48 3.50
Bath -1.59 2.14 -3.70
Wasps -1.62 5.66 -7.30
Gloucester -2.66 -1.02 -1.60
Leicester Tigers -3.47 -6.14 2.70
London Irish -5.99 -8.05 2.10
Newcastle Falcons -7.92 -10.00 2.10
Worcester Warriors -9.91 -5.71 -4.20

 

Performance So Far

So far there have been 89 matches played, 56 of which were correctly predicted, a success rate of 62.9%.
Here are the predictions for last week’s games.

Game Date Score Prediction Correct
1 Northampton Saints vs. London Irish Apr 17 44 – 26 10.60 TRUE
2 Sale Sharks vs. Gloucester Apr 17 25 – 22 11.70 TRUE
3 Exeter Chiefs vs. Wasps Apr 18 43 – 13 10.60 TRUE
4 Harlequins vs. Worcester Warriors Apr 18 50 – 26 18.10 TRUE
5 Newcastle Falcons vs. Bristol Apr 18 17 – 34 -6.90 TRUE
6 Bath vs. Leicester Tigers Apr 19 21 – 20 7.10 TRUE

 

Predictions for Round 17

Here are the predictions for Round 17. 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 Bristol vs. Exeter Chiefs Apr 24 Bristol 2.70
2 London Irish vs. Harlequins Apr 24 Harlequins -5.90
3 Gloucester vs. Newcastle Falcons Apr 25 Gloucester 9.80
4 Leicester Tigers vs. Northampton Saints Apr 25 Leicester Tigers 0.00
5 Worcester Warriors vs. Sale Sharks Apr 25 Sale Sharks -8.90
6 Wasps vs. Bath Apr 26 Wasps 4.50

 

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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 »