March 28, 2023

Rugby Premiership Predictions for Round 22

Team Ratings for Round 22

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
Leicester Tigers 5.14 7.93 -2.80
Sale Sharks 4.20 4.14 0.10
London Irish 3.88 -1.65 5.50
Saracens 1.69 -5.00 6.70
Harlequins 0.78 3.92 -3.10
Bristol 0.49 -2.43 2.90
Northampton Saints -0.02 3.99 -4.00
Exeter Chiefs -0.03 3.67 -3.70
Gloucester -0.18 5.92 -6.10
Wasps -0.18 0.77 -1.00
Bath -5.84 -9.15 3.30
Newcastle Falcons -7.17 -8.76 1.60
Worcester Warriors -11.69 -12.27 0.60

 

Performance So Far

So far there have been 102 matches played, 70 of which were correctly predicted, a success rate of 68.6%.
Here are the predictions for last week’s games.

Game Date Score Prediction Correct
1 Newcastle Falcons vs. Gloucester Mar 25 17 – 12 -3.50 FALSE
2 Leicester Tigers vs. Bristol Mar 26 46 – 24 7.60 TRUE
3 London Irish vs. Northampton Saints Mar 26 37 – 22 7.50 TRUE
4 Saracens vs. Harlequins Mar 26 36 – 24 4.50 TRUE
5 Bath vs. Exeter Chiefs Mar 27 36 – 19 -3.40 FALSE

 

Predictions for Round 22

Here are the predictions for Round 22. 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. Sale Sharks Apr 16 Bristol 0.80
2 Gloucester vs. Bath Apr 16 Gloucester 10.20
3 Harlequins vs. Newcastle Falcons Apr 16 Harlequins 12.50
4 Leicester Tigers vs. Exeter Chiefs Apr 16 Leicester Tigers 9.70
5 Northampton Saints vs. Saracens Apr 16 Northampton Saints 2.80

 

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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 »