Posts written by David Scott (1643)

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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.

May 20, 2025

Super Rugby Predictions for Week 15

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Team Ratings for Week 15

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
Chiefs 12.35 11.43 0.90
Blues 10.53 14.92 -4.40
Crusaders 10.32 8.99 1.30
Hurricanes 9.21 10.97 -1.80
Brumbies 6.54 6.19 0.30
Reds 1.66 1.35 0.30
Highlanders -3.27 -2.50 -0.80
Moana Pasifika -6.10 -11.25 5.10
Waratahs -6.57 -5.17 -1.40
Western Force -6.77 -6.41 -0.40
Fijian Drua -7.39 -7.98 0.60

 

Performance So Far

So far there have been 68 matches played, 48 of which were correctly predicted, a success rate of 70.6%.
Here are the predictions for last week’s games.

Game Date Score Prediction Correct
1 Hurricanes vs. Highlanders May 16 24 – 20 17.10 TRUE
2 Waratahs vs. Crusaders May 16 33 – 48 -12.50 TRUE
3 Fijian Drua vs. Western Force May 17 38 – 7 0.70 TRUE
4 Moana Pasifika vs. Blues May 17 27 – 21 -14.70 FALSE
5 Brumbies vs. Reds May 17 24 – 14 8.10 TRUE

 

Predictions for Week 15

Here are the predictions for Week 15. 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 Crusaders vs. Highlanders May 23 Crusaders 17.10
2 Reds vs. Hurricanes May 23 Hurricanes -3.60
3 Chiefs vs. Moana Pasifika May 24 Chiefs 22.00
4 Western Force vs. Waratahs May 24 Western Force 3.30

 

Rugby Premiership Predictions for Round 18

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Team Ratings for Round 18

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
Bath 11.88 5.55 6.30
Sale Sharks 7.02 4.73 2.30
Leicester Tigers 6.48 3.27 3.20
Gloucester 4.23 -9.04 13.30
Saracens 4.14 9.68 -5.50
Bristol 2.27 9.58 -7.30
Northampton Saints -0.94 7.50 -8.40
Harlequins -1.01 -2.73 1.70
Exeter Chiefs -4.36 1.23 -5.60
Newcastle Falcons -18.96 -19.02 0.10

 

Performance So Far

So far there have been 85 matches played, 58 of which were correctly predicted, a success rate of 68.2%.
Here are the predictions for last week’s games.

Game Date Score Prediction Correct
1 Newcastle Falcons vs. Gloucester May 17 12 – 26 -17.40 TRUE
2 Sale Sharks vs. Bristol May 17 41 – 27 10.60 TRUE
3 Bath vs. Leicester Tigers May 18 43 – 15 7.90 TRUE
4 Northampton Saints vs. Saracens May 18 28 – 24 0.80 TRUE
5 Harlequins vs. Exeter Chiefs May 19 24 – 22 11.80 TRUE

 

Predictions for Round 18

Here are the predictions for Round 18. 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. Harlequins Jun 01 Bristol 9.80
2 Exeter Chiefs vs. Sale Sharks Jun 01 Sale Sharks -4.90
3 Gloucester vs. Northampton Saints Jun 01 Gloucester 11.70
4 Leicester Tigers vs. Newcastle Falcons Jun 01 Leicester Tigers 31.90
5 Saracens vs. Bath Jun 01 Bath -1.20

 

NRL Predictions for Round 12

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Team Ratings for Round 12

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
Storm 10.12 9.29 0.80
Panthers 6.69 8.50 -1.80
Sharks 5.96 5.10 0.90
Roosters 4.29 7.44 -3.20
Bulldogs 3.98 0.07 3.90
Sea Eagles 3.61 2.97 0.60
Cowboys 2.14 4.11 -2.00
Raiders -0.05 -3.61 3.60
Warriors -0.41 -1.68 1.30
Broncos -0.78 -1.82 1.00
Dolphins -1.49 -1.96 0.50
Dragons -3.79 -4.55 0.80
Rabbitohs -3.85 -4.35 0.50
Knights -4.46 -0.05 -4.40
Eels -5.36 -3.02 -2.30
Titans -7.28 -5.50 -1.80
Wests Tigers -9.33 -10.97 1.60

 

Performance So Far

So far there have been 88 matches played, 48 of which were correctly predicted, a success rate of 54.5%.
Here are the predictions for last week’s games.

Game Date Score Prediction Correct
1 Knights vs. Eels May 16 6 – 28 6.20 FALSE
2 Bulldogs vs. Roosters May 16 24 – 20 2.40 TRUE
3 Dolphins vs. Warriors May 17 12 – 16 3.20 FALSE
4 Cowboys vs. Sea Eagles May 17 6 – 24 3.40 FALSE
5 Sharks vs. Storm May 17 31 – 26 -1.90 FALSE
6 Broncos vs. Dragons May 18 26 – 30 7.10 FALSE
7 Raiders vs. Titans May 18 40 – 24 9.50 TRUE
8 Wests Tigers vs. Rabbitohs May 18 12 – 22 -1.60 TRUE

 

Predictions for Round 12

Here are the predictions for Round 12. 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 Bulldogs vs. Dolphins May 22 Bulldogs 8.50
2 Eels vs. Sea Eagles May 23 Sea Eagles -6.00
3 Panthers vs. Knights May 24 Panthers 11.20
4 Roosters vs. Sharks May 24 Roosters 1.30
5 Warriors vs. Raiders May 25 Warriors 3.10

 

AFL Predictions for Week 12

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Team Ratings for Week 12

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
Western Bulldogs 23.14 18.20 4.90
Collingwood 19.34 5.39 14.00
Geelong Cats 19.01 15.04 4.00
Hawthorn Hawks 16.91 21.95 -5.00
Adelaide Crows 13.17 2.69 10.50
Brisbane Lions 11.73 22.65 -10.90
Sydney Swans 6.63 12.60 -6.00
GWS Giants 5.96 9.08 -3.10
Gold Coast Suns 4.97 -6.41 11.40
Fremantle Dockers 4.61 5.99 -1.40
Carlton Blues 3.46 5.01 -1.60
St Kilda Saints -3.98 0.89 -4.90
Melbourne Demons -4.85 -0.21 -4.60
Port Adelaide Power -5.16 7.63 -12.80
Essendon Bombers -15.02 -10.15 -4.90
North Melbourne -28.28 -37.08 8.80
West Coast Eagles -30.92 -34.67 3.70
Richmond Tigers -33.12 -31.00 -2.10

 

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 Gold Coast Suns vs. Hawthorn Hawks May 15 104 – 96 -15.40 FALSE
2 Sydney Swans vs. Carlton Blues May 16 78 – 62 13.60 TRUE
3 Collingwood vs. Adelaide Crows May 17 78 – 68 19.40 TRUE
4 GWS Giants vs. Fremantle Dockers May 17 61 – 95 19.40 FALSE
5 Port Adelaide Power vs. Geelong Cats May 17 39 – 115 -4.10 TRUE
6 Western Bulldogs vs. Essendon Bombers May 17 127 – 36 30.30 TRUE
7 Richmond Tigers vs. North Melbourne May 18 74 – 78 -5.10 TRUE
8 Brisbane Lions vs. Melbourne Demons May 18 88 – 99 33.70 FALSE
9 West Coast Eagles vs. St Kilda Saints May 18 108 – 80 -22.70 FALSE

 

Predictions for Week 12

Here are the predictions for Week 12. 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 Geelong Cats vs. Western Bulldogs May 22 Geelong Cats 6.90
2 Essendon Bombers vs. Richmond Tigers May 23 Essendon Bombers 18.10
3 Carlton Blues vs. GWS Giants May 24 Carlton Blues 8.50
4 Hawthorn Hawks vs. Brisbane Lions May 24 Hawthorn Hawks 16.20
5 North Melbourne vs. Collingwood May 24 Collingwood -47.60
6 Fremantle Dockers vs. Port Adelaide Power May 24 Fremantle Dockers 20.80
7 Adelaide Crows vs. West Coast Eagles May 25 Adelaide Crows 55.10
8 Melbourne Demons vs. Sydney Swans May 25 Sydney Swans -0.50
9 St Kilda Saints vs. Gold Coast Suns May 25 St Kilda Saints 2.10

 

May 13, 2025

United Rugby Championship Predictions for Week 18

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Team Ratings for Week 18

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
Leinster 15.02 12.09 2.90
Bulls 11.02 8.83 2.20
Stormers 7.31 6.75 0.60
Glasgow 5.83 9.39 -3.60
Munster 5.06 9.28 -4.20
Sharks 3.50 -2.94 6.40
Edinburgh 1.74 0.09 1.70
Cheetahs 0.80 0.80 0.00
Scarlets -0.29 -10.65 10.40
Lions -0.62 6.73 -7.30
Cardiff Rugby -2.61 -2.55 -0.10
Connacht -2.63 -0.76 -1.90
Benetton -2.78 1.02 -3.80
Ospreys -2.93 -2.51 -0.40
Ulster -3.05 2.52 -5.60
Southern Kings -6.52 -6.52 0.00
Zebre -11.35 -16.17 4.80
Dragons -17.50 -15.41 -2.10

 

Performance So Far

So far there have been 136 matches played, 93 of which were correctly predicted, a success rate of 68.4%.
Here are the predictions for last week’s games.

Game Date Score Prediction Correct
1 Sharks vs. Ospreys May 10 29 – 10 9.90 TRUE
2 Munster vs. Ulster May 10 38 – 20 8.50 TRUE
3 Bulls vs. Cardiff Rugby May 11 45 – 21 17.80 TRUE
4 Benetton vs. Glasgow May 11 33 – 7 -7.50 FALSE
5 Leinster vs. Zebre May 11 76 – 5 26.30 TRUE
6 Stormers vs. Dragons May 11 48 – 12 28.70 TRUE
7 Connacht vs. Edinburgh May 11 21 – 31 3.10 FALSE
8 Lions vs. Scarlets May 12 19 – 32 8.10 FALSE

 

Predictions for Week 18

Here are the predictions for Week 18. 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 Stormers vs. Cardiff Rugby May 17 Stormers 15.40
2 Edinburgh vs. Ulster May 17 Edinburgh 10.30
3 Munster vs. Benetton May 17 Munster 13.30
4 Bulls vs. Dragons May 18 Bulls 34.00
5 Lions vs. Ospreys May 18 Lions 7.80
6 Zebre vs. Connacht May 18 Connacht -3.20
7 Sharks vs. Scarlets May 18 Sharks 9.30
8 Leinster vs. Glasgow May 18 Leinster 14.70

 

Top 14 Predictions for Round 24

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Team Ratings for Round 24

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
Stade Toulousain 14.64 8.76 5.90
Toulon 4.86 5.32 -0.50
Bordeaux Begles 4.74 3.96 0.80
Montpellier 1.50 -0.96 2.50
Clermont 1.18 0.41 0.80
Stade Rochelais 1.16 4.85 -3.70
Bayonne 0.84 -1.69 2.50
Racing 92 0.25 2.75 -2.50
Lyon 0.09 -0.18 0.30
Castres Olympique -0.06 -0.09 0.00
Section Paloise -0.19 1.38 -1.60
Stade Francais -1.88 1.86 -3.70
USA Perpignan -3.72 -0.66 -3.10
Vannes -7.70 -10.00 2.30

 

Performance So Far

So far there have been 160 matches played, 120 of which were correctly predicted, a success rate of 75%.
Here are the predictions for last week’s games.

Game Date Score Prediction Correct
1 Lyon vs. Section Paloise May 11 27 – 29 7.40 FALSE
2 Racing 92 vs. Bayonne May 11 24 – 24 6.80 FALSE
3 Toulon vs. Stade Toulousain May 11 16 – 50 -1.30 TRUE
4 USA Perpignan vs. Stade Francais May 11 20 – 18 5.30 TRUE
5 Vannes vs. Stade Rochelais May 11 29 – 30 -1.60 TRUE
6 Montpellier vs. Bordeaux Begles May 12 46 – 27 1.20 TRUE

 

Predictions for Round 24

Here are the predictions for Round 24. 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 Bayonne vs. Vannes May 18 Bayonne 15.00
2 Bordeaux Begles vs. Castres Olympique May 18 Bordeaux Begles 12.10
3 Clermont vs. USA Perpignan May 18 Clermont 10.10
4 Section Paloise vs. Toulon May 18 Section Paloise 2.90
5 Stade Francais vs. Lyon May 18 Stade Francais 4.00
6 Stade Toulousain vs. Racing 92 May 18 Stade Toulousain 20.00
7 Stade Rochelais vs. Montpellier May 19 Stade Rochelais 6.30

 

Super Rugby Predictions for Week 14

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Team Ratings for Week 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
Chiefs 12.35 11.43 0.90
Blues 11.32 14.92 -3.60
Crusaders 10.15 8.99 1.20
Hurricanes 9.76 10.97 -1.20
Brumbies 6.41 6.19 0.20
Reds 1.79 1.35 0.40
Highlanders -3.82 -2.50 -1.30
Western Force -5.70 -6.41 0.70
Waratahs -6.40 -5.17 -1.20
Moana Pasifika -6.89 -11.25 4.40
Fijian Drua -8.46 -7.98 -0.50

 

Performance So Far

So far there have been 63 matches played, 44 of which were correctly predicted, a success rate of 69.8%.
Here are the predictions for last week’s games.

Game Date Score Prediction Correct
1 Fijian Drua vs. Blues May 09 5 – 34 -14.60 TRUE
2 Waratahs vs. Reds May 09 21 – 28 -4.30 TRUE
3 Crusaders vs. Chiefs May 10 19 – 35 2.80 FALSE
4 Western Force vs. Brumbies May 10 14 – 33 -7.60 TRUE

 

Predictions for Week 14

Here are the predictions for Week 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 Hurricanes vs. Highlanders May 16 Hurricanes 17.10
2 Waratahs vs. Crusaders May 16 Crusaders -12.50
3 Fijian Drua vs. Western Force May 17 Fijian Drua 0.70
4 Moana Pasifika vs. Blues May 17 Blues -14.70
5 Brumbies vs. Reds May 17 Brumbies 8.10

 

Rugby Premiership Predictions for Round 17

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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
Bath 9.86 5.55 4.30
Leicester Tigers 8.50 3.27 5.20
Sale Sharks 6.67 4.73 1.90
Gloucester 4.57 -9.04 13.60
Saracens 4.47 9.68 -5.20
Bristol 2.61 9.58 -7.00
Harlequins -0.03 -2.73 2.70
Northampton Saints -1.26 7.50 -8.80
Exeter Chiefs -5.35 1.23 -6.60
Newcastle Falcons -19.29 -19.02 -0.30

 

Performance So Far

So far there have been 80 matches played, 53 of which were correctly predicted, a success rate of 66.2%.
Here are the predictions for last week’s games.

Game Date Score Prediction Correct
1 Leicester Tigers vs. Sale Sharks May 10 44 – 34 7.90 TRUE
2 Bristol vs. Bath May 11 36 – 14 -6.40 FALSE
3 Harlequins vs. Gloucester May 11 38 – 19 -2.40 FALSE
4 Saracens vs. Newcastle Falcons May 11 75 – 28 26.10 TRUE
5 Exeter Chiefs vs. Northampton Saints May 12 42 – 14 -4.00 FALSE

 

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 Newcastle Falcons vs. Gloucester May 17 Gloucester -17.40
2 Sale Sharks vs. Bristol May 17 Sale Sharks 10.60
3 Bath vs. Leicester Tigers May 18 Bath 7.90
4 Northampton Saints vs. Saracens May 18 Northampton Saints 0.80
5 Harlequins vs. Exeter Chiefs May 19 Harlequins 11.80

 

NRL Predictions for Round 11

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Team Ratings for Round 11

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
Storm 10.50 9.29 1.20
Panthers 6.69 8.50 -1.80
Sharks 5.59 5.10 0.50
Roosters 4.42 7.44 -3.00
Bulldogs 3.85 0.07 3.80
Cowboys 3.07 4.11 -1.00
Sea Eagles 2.69 2.97 -0.30
Broncos -0.23 -1.82 1.60
Raiders -0.40 -3.61 3.20
Warriors -0.79 -1.68 0.90
Dolphins -1.11 -1.96 0.80
Knights -3.31 -0.05 -3.30
Rabbitohs -4.29 -4.35 0.10
Dragons -4.34 -4.55 0.20
Eels -6.51 -3.02 -3.50
Titans -6.93 -5.50 -1.40
Wests Tigers -8.89 -10.97 2.10

 

Performance So Far

So far there have been 80 matches played, 45 of which were correctly predicted, a success rate of 56.2%.
Here are the predictions for last week’s games.

Game Date Score Prediction Correct
1 Eels vs. Dolphins May 08 16 – 20 -2.10 TRUE
2 Knights vs. Titans May 09 20 – 24 7.80 FALSE
3 Rabbitohs vs. Broncos May 09 22 – 14 -2.10 FALSE
4 Raiders vs. Bulldogs May 10 20 – 32 -0.10 TRUE
5 Dragons vs. Warriors May 10 14 – 15 0.10 FALSE
6 Cowboys vs. Panthers May 10 30 – 30 -0.70 FALSE
7 Storm vs. Wests Tigers May 11 64 – 0 19.00 TRUE
8 Sea Eagles vs. Sharks May 11 14 – 30 1.70 FALSE

 

Predictions for Round 11

Here are the predictions for Round 11. 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 Knights vs. Eels May 16 Knights 6.20
2 Bulldogs vs. Roosters May 16 Bulldogs 2.40
3 Dolphins vs. Warriors May 17 Dolphins 3.20
4 Cowboys vs. Sea Eagles May 17 Cowboys 3.40
5 Sharks vs. Storm May 17 Storm -1.90
6 Broncos vs. Dragons May 18 Broncos 7.10
7 Raiders vs. Titans May 18 Raiders 9.50
8 Wests Tigers vs. Rabbitohs May 18 Rabbitohs -1.60

 

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AFL Predictions for Week 11

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Team Ratings for Week 11

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
Collingwood 20.47 5.39 15.10
Western Bulldogs 19.21 18.20 1.00
Hawthorn Hawks 18.66 21.95 -3.30
Brisbane Lions 14.77 22.65 -7.90
Geelong Cats 14.47 15.04 -0.60
Adelaide Crows 12.04 2.69 9.30
GWS Giants 9.49 9.08 0.40
Sydney Swans 6.35 12.60 -6.30
Carlton Blues 3.75 5.01 -1.30
Gold Coast Suns 3.22 -6.41 9.60
Fremantle Dockers 1.08 5.99 -4.90
St Kilda Saints -0.60 0.89 -1.50
Port Adelaide Power -0.62 7.63 -8.30
Melbourne Demons -7.88 -0.21 -7.70
Essendon Bombers -11.09 -10.15 -0.90
North Melbourne -28.14 -37.08 8.90
Richmond Tigers -33.25 -31.00 -2.20
West Coast Eagles -34.30 -34.67 0.40

 

Performance So Far

So far there have been 80 matches played, 51 of which were correctly predicted, a success rate of 63.8%.
Here are the predictions for last week’s games.

Game Date Score Prediction Correct
1 Fremantle Dockers vs. Collingwood May 08 83 – 97 -6.60 TRUE
2 St Kilda Saints vs. Carlton Blues May 09 62 – 77 -2.30 TRUE
3 Melbourne Demons vs. Hawthorn Hawks May 10 56 – 91 -23.90 TRUE
4 Essendon Bombers vs. Sydney Swans May 10 71 – 63 -9.10 FALSE
5 Gold Coast Suns vs. Western Bulldogs May 10 106 – 96 -20.40 FALSE
6 Port Adelaide Power vs. Adelaide Crows May 10 84 – 89 -15.10 TRUE
7 Richmond Tigers vs. West Coast Eagles May 11 81 – 79 14.00 TRUE
8 Geelong Cats vs. GWS Giants May 11 101 – 105 19.50 FALSE
9 North Melbourne vs. Brisbane Lions May 11 71 – 71 -37.10 FALSE

 

Predictions for Week 11

Here are the predictions for Week 11. 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 Gold Coast Suns vs. Hawthorn Hawks May 15 Hawthorn Hawks -15.40
2 Sydney Swans vs. Carlton Blues May 16 Sydney Swans 13.60
3 Collingwood vs. Adelaide Crows May 17 Collingwood 19.40
4 GWS Giants vs. Fremantle Dockers May 17 GWS Giants 19.40
5 Port Adelaide Power vs. Geelong Cats May 17 Geelong Cats -4.10
6 Western Bulldogs vs. Essendon Bombers May 17 Western Bulldogs 30.30
7 Richmond Tigers vs. North Melbourne May 18 North Melbourne -5.10
8 Brisbane Lions vs. Melbourne Demons May 18 Brisbane Lions 33.70
9 West Coast Eagles vs. St Kilda Saints May 18 St Kilda Saints -22.70

 

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