Project Preview:

This #AlexanderArnold FK against #Chelsea was the most unstoppable FK in the #PremierLeague since 2017/2018 according to the FK ExSaves model I’ve built!

My model predicts this shot would only be saved 6 times in 1000!

& Trent made it look so simple!

#LFC #GK ImageImage
For those interested, this graphic is a good representation of what the model actually “sees”.

The variables used to train the model were:

• Initial Shot Distance
• Initial Shot Angle
• Shot Trajectory Relative to the Wall
• Final Shot Location
• Shot Velocity Image
My model passed the sanity check as it found:

Closer FKs are harder to save ✅

More central FKs are harder to save ✅

FKs which go over the wall are harder to save ✅

FK which are higher & closer to the corners are harder to save ✅

FK which are faster are harder to save ✅
The reason TAA’s shot was so difficult to save was because it was close range & central & was smashed into the top corner at 71mph!

I will probably be tweeting a full thread of my analysis of #PremierLeague FKs soon but until then if anyone has any FK requests tweet below 👇🏻 Image

• • •

Missing some Tweet in this thread? You can try to force a refresh
 

Keep Current with John Harrison

John Harrison Profile picture

Stay in touch and get notified when new unrolls are available from this author!

Read all threads

This Thread may be Removed Anytime!

PDF

Twitter may remove this content at anytime! Save it as PDF for later use!

Try unrolling a thread yourself!

how to unroll video
  1. Follow @ThreadReaderApp to mention us!

  2. From a Twitter thread mention us with a keyword "unroll"
@threadreaderapp unroll

Practice here first or read more on our help page!

More from @Jhdharrison1

19 Aug
THREAD: #Ramsdale to #Arsenal

It will be interesting to see how #Ramsdale gets on at #AFC & how his game evolves.

One thing #AFC know they are getting is a quality 1v1 stopper!

My model suggests #Ramsdale’s 1v1 prowess saved #SUFC ~3 goals more than an average #PL GK would’ve!
In comparison #Leno was average at stopping 1v1s last year & given the brand of football #Arsenal wish to play maybe this was in their thought process when they scouted #Ramsdale.

My model has #Ramsdale as one of the top 5 1v1 stoppers in the #PL & potentially can still improve!
#Ramsdale’s strength vs close range 1v1s is down to his lightning fast speed of thought & speed off the line in combination with his wonderful bravery & tidy spread technique.

This save vs #Wolves is a good example

Rambo creates a huge barrier & snuffs out an excellent chance!
Read 9 tweets
18 May
What a save from #DeGea

Unbelievably calm GKing in a crucial moment

It may look like a simple save but that’s all because of his exemplary decision to use the wait & react 1v1 strategy as the 1v1 was from long range!

Not many GKs could make such a good decision

#MUFC #MUNFUL
The striker was ~16 yrds from the centre of goal & at a pretty wide angle (hard to see from the photo) so #DeGea’s decision to stay deep made the finish very difficult as he didn’t rush out & gift a simple dink/rounded finish
The great thing about #DeGea’s positioning here is that if the striker takes a touch rather than shooting he’s far enough off his line & prepared & ready to engage then, only once he knows the striker is so close to goal that he can no longer trust his reactions to make the save!
Read 8 tweets
7 May
After showing us how a GK can maximise their chances of saving a close range 1v1, #Schmeichel has just show how us how a GK can minimise their chances of saving a long range 1v1!

By engaging early he allows Wilson to easily round him with 1 touch!

He needed to wait for longer!
If #Schmeichel waits inside his 6 yard box for #Wilson’s touch, #Wilson then has a decision to make:

1. Shoot from 17yrd knowing defenders are track back.

2. Take a touch knowing he will bring it closer to goal but also closer to the GK.

#FNF #LEINEW
Regardless of what decision #Wilson makes #Schmeichel will have a higher probability of making the save than he would have if he rushes out & engages early like he does.

1. If #Wilson shoots #Schmeichel’s deep position will maximise his reaction time & thus his save probability.
Read 6 tweets
7 May
What a save by #Schmeichel!

There are 2 crucial decisions which made this save possible:

• The decision to engage early -> minimised the distance to the ball thus maximised the goal area covered!

• The decision to spread -> spreading further maximised the goal area covered!
#Schmeichel quickly realised the 1v1 was going to be from close range & he wouldn’t be able to react to the shot if he stayed deep & thus he needed to rush out & form a premeditated barrier

Without this quick decision he wouldn’t have gotten close enough to ASM to make the save!
Even once he gets out to ASM it could still be a goal but #Schmeichel’s excellent spread technique means he fills a huge portion of the goal & manages to get a toe on the ball & deflect it out for a corner.

Using a different barrier technique would’ve likely resulted in a goal.
Read 4 tweets
4 May
I’ve always thought the discourse surrounding #Pickford is odd

Twitter would make you think he is the worst GK to ever play in the #PremierLeague which isn’t true, he’s an avg #PL shotstopper!

Yes he had a bad 2020 but his recent good form is starting to make up for that

#EFC
Pickford’s #PremierLeague Save% for #Everton = 68.9

Expected Save% for an avg #PL GK who faced the same shots as #Pickford in that time = 69.0

I understand why people think that #England’s #1 should be better than a middle of the road PL GK but the abuse he gets is just crazy!
Also regarding the #England #1 shirt, the main reason he has it is because currently #Southgate believes that being an average shotstopper is outweighed by the fact he is a level above any other English GK when it comes to distributing the ball, especially when under pressure!
Read 5 tweets
4 May
#PremierLeague Shotstopping Performance Graphic:

#Ederson #Areola #Martinez & #Sanchez have been class 🔥

#Henderson has outperformed #DeGea when it comes to shotstopping 🔄

Despite criticism #Ramsdale #Pickford & #Guaita have performed at a roughly average top flight level 👀
Explanation of ExSaves:

ExSaves are calculated by looking at every shot a GK faces & using the shots distance, angle, trajectory, final location, the number of defenders in the way + other things & using historical data to find the probability that an avg PL GK makes the save...
...Therefore as a rough example a shot from 40yrds at a tight angle that goes down the middle of goal with all the teams defenders behind the ball may have an ExSave of 99% whereas a central 1v1 from 10yrds fired into the bottom corner may have an ExSave of 10%.
Read 4 tweets

Did Thread Reader help you today?

Support us! We are indie developers!


This site is made by just two indie developers on a laptop doing marketing, support and development! Read more about the story.

Become a Premium Member ($3/month or $30/year) and get exclusive features!

Become Premium

Too expensive? Make a small donation by buying us coffee ($5) or help with server cost ($10)

Donate via Paypal Become our Patreon

Thank you for your support!

Follow Us on Twitter!

:(