Corofin produced an absolutely scintillating performance in the first half of the recent club final against Dr. Crokes. I threw up a few pieces on twitter (@dontfoul) around that performance and what follows is an amalgamation of those pieces with a bit more context.
It is important to note what this is not. It is not is a critique of how Corofin play. It is a review of how they played in one half of one game.
Corofin’s shooting
The first thing that jumped out when watching the game “live” was their shooting. In that first half against Dr. Crokes they attempted 15 shots with none coming from further out than ~23m.

That is an incredibly neat and tight shot chart. I tend to use an ad hoc arc around the D to give a visualisation of “inside”/”outside” shooting which I have overlaid on Corofin’s shots. In the Super 8s last year 45% of shots were taken inside that arc. 45%! Corofin were at 87% (13 of 15) with the two “outside” being on the edge of the arc.
Passing sequences
Taking a step back the next question is how Corofin managed to create such a neat shot chart. Below is the passing sequence for all 18 of their first half possessions and the result for same (excluding the very last move when the referee blew for half time just after the kickout was gathered).

Green is a successful pass, orange is where the pass did not go where anticipated but Corofin gathered/controlled the ball and red is a turnover from a pass.
There is probably a thesis there for someone in comparing that table to other teams, be they club or county. Passes per possession, hand pass to kick pass ratio, avg. length of kick pass, quantum of attacking passes to possession retention passes etc. But from a cursory review there are a few things that jump out
• Just how much green there is and the implication of assuredness whilst in control of the ball;
• Only one turnover in the tackle
• Only four, out of 128 passes, led to a turnover
That is not to say that the other 124 passes were perfect – far from it. There is quite a bit of oIrange in there but that in and of itself was a feature. Twice shots were blocked and regathered, at least five times unorthodox passes (fist through, toe pokes, kick through – you don’t always need to “go down on it”) successfully found a Corofin player. Corofin were alert to all possibilities at all times.
Visually Corofin were in utter control and the above table is just another way to show it. And that control was achieved with a variation in both tempo and style. The first three possessions took six passes apiece, contained two outfield solos and averaged ~20 seconds on the ball. The last point was a 20 pass string with five outfield solos and consumed 72seconds on the clock.
That control was evident even with a heightened volume of kick passes. More work is (definitely) needed here but it is important to stress that it is the type of kick that is emphasised here rather than the volume.
(As an aside ….. Patricia Lynch, the current senior performance analyst for Kerry, did a notational study of passing (https://www.tandfonline.com/doi/full/10.1080/24748668.2017.1416526) showing that from 2014 – 2016 the ratio of kick passes to hand passes was 2.5:1 (~ 72% to 28%). Eamon Donoghue (https://www.irishtimes.com/sport/gaelic-games/gaelic-football/gaa-statistics-how-much-has-gaelic-football-changed-in-the-last-decade-1.3619732) in his piece in the Irish Times post last year’s all Ireland final showed a kick pass/hand pass ratio of 75%/25%)
Corofin, at a 30% kick pass ratio, were just above these norms but their attacking kick passes were immense and it is phenomenal that they only had a 3% turnover rate on all passes when we overlay the (subjective) nature of their kick passing.
Front 6 touches
So stepping away from the passing sequences (as I said you could create a thesis on this alone) the question becomes how they create this control. They are generally on point with their passing allowing them to attack the goal and almost point-blank refuse to take unnecessary shots. Joe Brolly eulogised on their understanding of movement and space in the Sunday Game and that got me thinking re how Corofin use their front six.

The above chart outlines the passing and movement on the ball of Corofin’s front six. In doing so you can see a few things that work into their game plan
• expanding it out to the full pitch it is rare for any of them to be on the ball in their own half – 5 touches between them (with Michael Lundy having four of them)
• Gary Sice (#10) is the main architect of the attacking kick; the front six had four kick passes combined from outside the 45 with all of them coming from him
• Michael Lundy (#11) preferred the right-hand side
• Michael Farragher’s (#14) natural habitat is a small rectangular box between the 13m & 20m lines in front of goal however if he collects the ball out the field he is carrying the ball directly towards the danger zone
But all that pales into insignificance when we see what the front six didn’t do. They stayed away from the No. 6 channel (yellow coloured rectangle in the above chart) altogether. Compare that to how other teams view the concept of space and where they try to get their playmakers on the ball.
Could we have seen it coming?
That first half display against Dr. Crokes was outstanding. Unfortunately (despite my endless invocations to people on Twitter to back up their data) I have lost my copy of the 2018 final v Nemo Rangers but commentary points to how they blitzed both Nemo in that final and Slaughtneil in 2016.
What I do have however is the semi-final v Gaoth Dobhair. And the comparison of the two first halves is as scary as it is striking.

Part of the narrative around Corofin’s displays in the finals is that Croke Park suits them. The wide open space allows their forwards to run all sorts of angles whilst the outfield players can find space to pick a pass. Scarily Corofin were even more clinical in the first half of the Gaoth Dobhair game, down in Seán Mac Diarmada Park, than they were up in Croke Park. I mean … 2 – 07 from 11 shots in an AI semi-final.

Once again the shooting was very considered with only three shots coming from outside the aforementioned artificial zone (I wonder did Jason Leonard have to do punishment laps the next night at training for that shot out to the right ….).
Across the two halves analysed that’s 81% (21 of 26) of shots coming from “inside” with only one shot that could be considered in any way away from the arc with 35% of all attempts from play being goal attempts.
Again, a reminder that the 2018 Super8s saw 45% of shots from “inside” with 10.4% of attempts from play being goal attempts.
Passing sequences v Gaoth Dobhair

The passing was not as slick as against Dr. Crokes in that seven passes led to a turnover but the avoidance of turnovers in the tackle is evident with just the one ball dislodged early on.
All the main ingredients for that first half performance v Dr Crokes were evident in their first half display v Gaoth Dobhair.