NRL Predictions for Round 21
Team Ratings for Round 21
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 | 11.39 | 16.73 | -5.30 |
| Roosters | 6.55 | 0.13 | 6.40 |
| Sharks | 3.95 | 2.20 | 1.70 |
| Broncos | 3.07 | 4.78 | -1.70 |
| Rabbitohs | 2.94 | -3.90 | 6.80 |
| Raiders | 2.11 | 3.50 | -1.40 |
| Dragons | 2.00 | -0.45 | 2.40 |
| Panthers | 0.80 | 2.64 | -1.80 |
| Warriors | -2.79 | -6.97 | 4.20 |
| Wests Tigers | -3.23 | -3.63 | 0.40 |
| Cowboys | -3.32 | 2.97 | -6.30 |
| Bulldogs | -3.50 | -3.43 | -0.10 |
| Titans | -4.66 | -8.91 | 4.30 |
| Eels | -4.88 | 1.51 | -6.40 |
| Sea Eagles | -4.91 | -1.07 | -3.80 |
| Knights | -7.82 | -8.43 | 0.60 |
Performance So Far
So far there have been 152 matches played, 95 of which were correctly predicted, a success rate of 62.5%.
Here are the predictions for last week’s games.
| Game | Date | Score | Prediction | Correct | |
|---|---|---|---|---|---|
| 1 | Broncos vs. Sharks | Jul 26 | 12 – 10 | 2.10 | TRUE |
| 2 | Cowboys vs. Knights | Jul 27 | 20 – 18 | 8.40 | TRUE |
| 3 | Bulldogs vs. Wests Tigers | Jul 27 | 16 – 4 | 1.20 | TRUE |
| 4 | Sea Eagles vs. Panthers | Jul 28 | 24 – 28 | -2.50 | TRUE |
| 5 | Rabbitohs vs. Eels | Jul 28 | 26 – 20 | 11.60 | TRUE |
| 6 | Storm vs. Raiders | Jul 28 | 44 – 10 | 8.70 | TRUE |
| 7 | Titans vs. Warriors | Jul 29 | 36 – 12 | -0.80 | FALSE |
| 8 | Roosters vs. Dragons | Jul 29 | 36 – 18 | 5.80 | TRUE |
Predictions for Round 21
Here are the predictions for Round 21. 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. Broncos | Aug 02 | Broncos | -3.60 |
| 2 | Knights vs. Wests Tigers | Aug 03 | Wests Tigers | -1.60 |
| 3 | Rabbitohs vs. Storm | Aug 03 | Storm | -5.40 |
| 4 | Dragons vs. Warriors | Aug 04 | Dragons | 9.30 |
| 5 | Eels vs. Titans | Aug 04 | Eels | 2.80 |
| 6 | Roosters vs. Cowboys | Aug 04 | Roosters | 12.90 |
| 7 | Sharks vs. Sea Eagles | Aug 05 | Sharks | 11.90 |
| 8 | Panthers vs. Raiders | Aug 05 | Panthers | 1.70 |