Right. Let's do this properly. Barcelona Women beat Real Madrid 6-0 on Thursday night to complete a 12-2 aggregate demolition in the Women's Champions League quarterfinals, and I have spent the last fourteen hours running numbers, cross-referencing databases, and staring at my spreadsheet like it owes me money. Because what happened over those two legs wasn't just a defeat. It was a statistical event.

Let's start with the headline figure, the one that should make everyone in the Real Madrid boardroom quietly close their laptops and go for a long walk. 12-2 on aggregate. That is the largest aggregate margin of victory in any Clásico, in any competition, in any format, men's or women's, in the entire recorded history of the fixture. I checked. I checked twice. Then I checked a third time because I assumed I'd made an error. I hadn't.

For context, the biggest aggregate Clásico win in the men's game this century was a 6-2 Barcelona victory in 2009, widely considered one of the most humiliating results in Real Madrid's modern history. Pep Guardiola's side scored six that night and people are still writing books about it seventeen years later. Barcelona Femení scored six in one leg and still had six left over from the first. The 2009 result gets a Netflix documentary. This one deserves its own wing in the Prado.

Now, some of you are going to say, 'Yes, Sarah, but Real Madrid's women's programme is relatively new, they only entered properly in 2020, you can't compare them to an established superpower like Barça Femení.' And to that I say: actually, the numbers say you're making my point for me. Real Madrid have invested significantly. They signed Kenti Robles, Linda Caicedo, Caroline Weir. They finished runners-up in Liga F. They're not a development project any more. They're a club that spent real money and got beaten by a goal difference that looks like a cricket score.

Here's my favourite stat from the two legs. Barcelona had 42 shots across the tie. Forty-two. That's 21 per game. Real Madrid had 11 total. Which means for every shot Madrid managed, Barcelona had nearly four. I've seen more competitive shot ratios in testimonial matches. I've seen more competitive shot ratios when my nephew plays FIFA against the cat.

Stat number four, and I want you to brace yourselves. Barcelona's expected goals across the two legs came to approximately 9.7 xG. They scored 12. They outperformed their expected goals by 2.3 across two matches. Usually when a team outperforms xG by that margin, you suspect variance, luck, a goalkeeper having a howler. But when your xG is already 9.7, the overperformance isn't the story. The story is that a statistical model designed to objectively assess chance quality looked at Barcelona's two legs and said, 'Yeah, about ten goals sounds right.' The model wasn't even surprised.

And the fifth number that should keep people up at night: Barcelona Femení have now won 23 consecutive home matches in the Women's Champions League. Twenty-three. Fortress doesn't begin to describe it. That's not a home record, that's a planning regulation. At this point, visiting teams should receive a health and safety briefing before kickoff.

The popular narrative around women's football right now is that the gap is closing, that investment is levelling the playing field, that the old order is being disrupted. And in many competitions, that's true. But at the very top of the Women's Champions League, Barcelona are not being caught. They're pulling away so fast they're leaving vapour trails.

I ran the numbers. You won't like them. Unless you're from Barcelona, in which case, you already knew.