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The Curious Case of West Ham Shot Efficiency

Sorting through the data from for an article on Premier League Moneyball, there was a curious team hanging out with unexpected company. West Ham popped up in data of the most efficient shot conversion teams. The percentage of shots that were goals put them in esteemed company last season.

Tactical Analysis: West Ham Shot Efficiency

Man City, Man United, Leicester, Liverpool, West Ham, Arsenal, Everton, Tottenham.

From the chart above West Ham scored on 12.9% of their shots last season. That places them as the 5th most efficient teams. West Ham scored a goal for every 7.75 shots that they took last year. That is an outstanding scoring ratio. The league average was 11% of shots were goals or a goal for every 9.09 shots taken.

For context, Man City scored a goal every 6.2 shots taken and Huddersfield scored a goal on every 13 shots taken. On average Man City needed 12.4 shots in a game to score 2 goals, West Ham needed 15.5 shots and Huddersfield needed 26 shots to score 2 goals. In the Premier League if you score 2 goals in a game you are likely getting points. If it takes 26 shots to get 2 goals then you better be near perfect with your defense!

Efficiency matters!

Stoke City, Brighton, WBA, and West Ham were all within 8 total shots for the season. Stoke and Brighton had 384 total shots, WBA with 376 and West Ham with 372. That is a really tight grouping for shots but West Ham had a much higher goal total.

Tactical Analysis: West Ham Shot Efficiency

West Ham’s efficiency accounted for a large disparity in goals scored compared to teams with similar shot totals. West Ham had 48 goals compared to Stoke’s 35, Brighton’s 34, and WBA’s 31 goals. West Ham’s efficiency kept them out of the mire that Stoke, Brighton, and WBA found themselves in.

Will the Efficiency Continue?

West Ham manager Manuel Pellegrini has been consistent in improving his team’s efficiency.


Tactical Analysis: West Ham Shot Efficiency

Pellegrini’s teams have been consistently above average in % of shots for goals. It is even more impressive when you look season’s prior to his taking over.

The pre-Pellegrini 09-10 Malaga team took 446 shots and converted at rate of 9.2%. Pellegrini’s 10-11 Malaga team had similar shots with 449 but raised the conversion rate to 12% of shots being goals. That resulted in an increase from 41 goals in 09-10 to 54 goals in 10-11. That is an impressive increase.

The year before Pellegrini took over at Man City the 12-13 team took 659 shots with a conversion rate of 10%. Pellegrini’s 1st year at Man City in 13-14 they had a similar amount of shots with 673 but they scored on an astounding 14.8% of their shots! The efficiency increase resulted in a 12-13 season total of 66 goals up to 100 goals in the 13-14 season.

If West Ham does dip in efficiency this season it will not be because of Pellegrini’s coaching or recruiting. Pellegrini clearly puts an emphasis on high value shots.

The Ultimate Efficient Player Chicharito

Javier “Chicharito” Hernandez is the outlier of all outliers in terms of efficiency of shots. In the last 8 seasons of league play, Chicharito has scored on an amazing 23.4% of his shots. He scores on every 4.3 shots he takes! While at Manchester United Chicharito scored 37 goals with all coming from inside the box. Getting in great spots and taking high value shots is who he is. Look for him to get all the minutes he can physically handle under Pellegrini.

Tactical Analysis: West Ham Shot Efficiency

Chicharito is clearly the anti-Jonjo Shelvey (Sorry Jonjo!)

Will Marko Arnautovic Help or Hinder

Marko Arnautovic has been highly efficient in the last 3 seasons. Last season he had an outstanding return of 11 goals on 71 shots for 15.5% efficiency. This mirrored his 15-16 season at Stoke when he scored 11 goals on 70 shots.

Tactical Analysis: West Ham Shot Efficiency

Looking at Arnautovic’s numbers there is a clear improvement in efficiency from a horrendously inefficient 13-14 season and 14-15 campaign at Stoke. In the 13-14 season, Marko took 72 shots with 46 of those shots coming outside the penalty area. Compare that to last season at West Ham when he took 71 shots but only 15 from outside the penalty area. It is clear to see why his goal count was only 4 in 13-14 and was 11 in 17-18. Arnautovic is taking smarter higher value shots.

New Player Efficiency Profile

Felipe Anderson has an interesting efficiency profile over the past four seasons at Lazio.

Tactical Analysis: West Ham Shot Efficiency

The 16-17 season was an abysmal 5.6% of shots for goals especially with the high volume of shots taken. He took 71 shots and only scored 4 goals. The other 3 seasons were outstanding ratios hovering around 15%. He is a key person to keep an eye on to see if the 16-17 season was an aberration. If he spends the season blasting low percentage hero shots then it is going to be a long season for West Ham fans.


West Ham was in esteemed company in terms of goal scoring efficiency last season. All the signs point to them being well positioned for another highly efficient shot to goal campaign. Pellegrini clearly improves teams efficiency and has a clear profile of shot efficiency in his managing career. West Ham also possesses returning players that have clear high-efficiency profiles with Chicharito being one of the most efficient goal scorers of all time and Arnautovic maturing into an efficient force.

The only possible concern is the high shot volume Felipe Anderson going wayward and reverting to his 16-17 Lazio style.


Why does it matter for West Ham this season? West Ham style of play and team makeup point towards no significant increase in the number of chances created this season. I see them staying within a similar range of total shots.

Additionally, as I’ve written before there is a marked decrease in the number of shots taken in the Premier League from 16-17 to 17-18 seasons. I predict that trend will continue as teams look to maximise the value of each possession ending with a high-value shot. West Ham last season was ahead of the curve in scoring these high-value shots.

If West Ham stay the course with their efficiency they will be in the top half of the table this season. If West Ham drops off in efficiency they will be in a situation that the 17-18 WBA, Stoke and Brighton teams found themselves.