When assessing the defensive quality of teams, we see that some keep multiple clean sheets but tend to let in lots of goals when they do concede, while others don’t concede a lot of goals, but keep too few cleanies. This makes it difficult to rank one over the other.
Also, a defender’s total score reflects the games he played, attacking points, cards and bonus acquired, which hides the underlying score. An alternate number is needed to correctly rank the teams. To calculate this I will use a Baseline Defender who played 90 mins of all games, did not get assists or goals, didn’t get carded or earn bonuses. This player I believe would best represent the pure defensive quality of the team. I’ve taken 90 points as total possible points, and deducted four for every clean sheet lost, and one for every two goals conceded in a game.
The Baseline Defender Ranking
This table is the ranking of total points by a Baseline Defender in each team
Home and Away
This table is a split up with Home and Away performances. The points scored have been divided by the number of H or A games, to get an H or A average.
Analysis
- Contrary to popular notion, many teams don’t defend a lot better at home. Probably because they are more adventurous.
- The last seven sides in the split home/away table, are the last seven in the overall table and in the Premier League table. If you are defensively terrible away, you’re terrible in the league.
- Arsenal are the only team that has similar returns, home and away. Manchester United at home and Manchester City away are exceptionally good for defensive points.
- The drawbacks are that each team has played another only once. Pros of the analysis – it is based on actual points and gives defensive potential of team, home and away.
- Injuries, form and fixtures so far will have affected the performances, for example Vincent Kompany’s absence appears to be a large factor in whether Manchester City concede or not.
*For statistic geeks
Median: 2.62
First quartile: 2
Third quartile: 3.2175
Standard deviation: 0.89
95th centile: 4.4
5th centile: 0.84


