Celtic Stats Corner: No Time to Panic after Caley and Alloa Matches
Before their match-up with Rangers, I warned that despite their high scoring attack, Celtic’s underlying numbers could see a regression to the mean. They then went and thumbed their nose at that concept entirely in their 5-1 destruction of Rangers.
The joys of that 5-1 victory ended quickly in the week and a half after that derby. Celtic went to Catalunya and were beaten 7-0, drew 2-2 in the Highlands of Scotland against Inverness Caledonian Thistle, and labored to beat Alloa Athletic in the quarter-finals of the League Cup 2-0.
Friends, this is what regressing to the mean looks like. Any team would struggle against Barcelona and there’s not much we can gather statistically from that game. However, many supporters were left frustrated with the team after the draw with Caley and needing late goals to beat Alloa.
Yet, what if I told you that statistically that Celtic’s 2-2 draw with the Jags was the most dominating performance any team had in the SPFL? What if I told you Celtic could easily score 4 goals against Alloa on a typical day? It’s true.
Expected Goal Difference in the @spfl Premiership so far. https://t.co/oHz22oCS5q #SPFL pic.twitter.com/boZYq27Cch
— The Backpass Rule (@TheBackpassRule) September 22, 2016
There may be some other reasons why Celtic dropped points on Sunday, but it certainly wasn’t the attack. The above chart shows the expected goal difference for every match for every team in the SPFL Premiership. That high green line at the top? Celtic against Caley last Sunday. With both teams expected goal and shot output, Celtic would win nearly 92% of the time, while Caley would win 2%, and draw would occur about 7% of the time. It was just one of those days.
.@celticfc vs @AlloaAthleticFC
FT 2-0
SoT 11-3
xG 4.02-0.69
Simulated Win% 96-1 pic.twitter.com/YiJtCSjZLJ— FitbaFancyStats???? (@226blog) September 21, 2016
Looking at Fitbaw Fancy Stats expected goal timeline from the Alloa cup match, we see something similar. Celtic had an xG total of over 4 from 11 shots on target! Those are dominating numbers. As Seth from Fitbaw Fancy Stats shows, the Hoops can expect to win 96% of the time! Most of those times we could expect in rather dominating fashion.
The Bhoys continue to put up great numbers on attack. They have the best xG total in the league, despite playing one less match than most of the league. They average the second most shots and shots on target per game in the league.
Finally updated the @spfl Premiership Advanced Stats Team table after last weekend's matches. https://t.co/dsxjf61LIk pic.twitter.com/bGvyDIVN0V
— The Backpass Rule (@TheBackpassRule) September 22, 2016
Days like Sunday and Wednesday happen in football. However, like we should not get too carried away when Celtic are scoring more than we would expect from their numbers, we should also not fret if the they do not finish as well as they should in one match. If Celtic keep up these numbers, they will continue to be successful.
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