June 7, 2022

Rugby Premiership Predictions for the Semi-finals

Team Ratings for the Semi-finals

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 5.55 -6.14 11.70
Gloucester 5.08 -1.02 6.10
Saracens 3.60 -5.00 8.60
Northampton Saints 3.04 -2.48 5.50
Sale Sharks 2.83 4.96 -2.10
Harlequins 2.52 -1.08 3.60
Exeter Chiefs 2.40 7.35 -4.90
Wasps 1.12 5.66 -4.50
London Irish -2.88 -8.05 5.20
Bristol -4.25 1.28 -5.50
Bath -9.04 2.14 -11.20
Newcastle Falcons -9.08 -3.52 -5.60
Worcester Warriors -12.51 -5.71 -6.80

 

Performance So Far

So far there have been 153 matches played, 88 of which were correctly predicted, a success rate of 57.5%.
Here are the predictions for last week’s games.

Game Date Score Prediction Correct
1 Exeter Chiefs vs. Harlequins Jun 05 47 – 38 3.70 TRUE
2 Gloucester vs. Saracens Jun 05 54 – 7 1.90 TRUE
3 Leicester Tigers vs. Wasps Jun 05 20 – 10 8.70 TRUE
4 Northampton Saints vs. Newcastle Falcons Jun 05 65 – 26 14.20 TRUE
5 Sale Sharks vs. Bristol Jun 05 42 – 19 10.20 TRUE
6 Worcester Warriors vs. Bath Jun 05 43 – 27 -0.70 FALSE

 

Predictions for the Semi-finals

Here are the predictions for the Semi-finals. 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 Saracens vs. Harlequins Jun 12 Saracens 5.60
2 Leicester Tigers vs. Northampton Saints Jun 12 Leicester Tigers 7.00

 

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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 »