Home Field Is Worth Thirteen Ranks. Most of It Is the Road Team Losing Them.

A ranked college football team at home wins 77% of the time. The same sort of team on the road wins 48%. Split that gap three ways and the crowd turns out not to be doing the work.

The Sports Page · The Professor · what a stadium is worth

The question: how much is home field worth? Not in points. In ranks — the unit fans already argue in.

The answer: about thirteen ranks. A team playing at home wins about as often as a team thirteen places better playing away.

Here is the surprising part. We split that thirteen into its two halves. Playing at home helps a little. Playing away hurts almost twice as much. We named the thing after the wrong team.

What you get from it: one adjustment you can do in your head. Before you pick a game, take thirteen ranks off whoever is travelling.

Measure it in the unit people already use

Bookmakers price a stadium in points. Fans do not talk that way. Fans say “we are sixth and they are seventh, so we should win.” Ranks are the currency at the table.

So put the venue in ranks. Take every game where both teams were ranked. Give a simple equation two facts: how many places apart the teams were, and where the game was played. Ask it one question back. How many ranks would you have to hand a team to buy what the home stadium buys? That is what a measure is fori.

A game happens in one of three places

Most people split games two ways, home and away. That throws away the most useful games of all — the ones at neither place.

From 2015 through 2025 there were 493 games with both teams ranked. Of those, 190 were at the better team’s home field, 219 were at its opponent’s, and 84 were at a neutral site.

The better-ranked team won 77% at home. It won 48% away. At neutral sites it won 67% — sitting between the two, exactly where it should.

That middle group is what makes the rest trustworthy. Neutral games are the control.

Where to put the bar

Pick a standard: winning three of every four. That is the same 75% line we used to ask how far apart two rankings must be before the order means anything.

At home, a team needs to be six ranks better to win that often. At a neutral site it needs eleven. On the road it needs nineteen.

Six to nineteen. That is the thirteen.

It is not home cooking. It is road sickness.

Now use the neutral games as the zero point, and the thirteen comes apart.

Playing at home is worth about five ranks more than playing nowhere; playing on the road costs about eight. The penalty is a bit under twice the size of the boost.

There is more. The road penalty is large enough that we can be confident it is real. The home boost is small enough that we cannot rule out its being nothing at all.

Think about what that means. The crowd, the band, the familiar locker room — the part everybody points to — is the part the data is least sure of. The flight, the hotel, the strange field, the body clock: that is where the effect lives.

The check that had to pass first

An obvious objection: maybe good teams just schedule easier opponents at home. Then home games would look easy because they are easy, and the stadium gets credit it did not earn.

So we checked. The average rank gap was 7.8 at home, 7.7 at neutral sites, and 8.3 on the road. Those are the same number.

The three groups faced equally hard opponents. Whatever is moving the win rate, it is not the schedule. Always ask what else changedi.

Notre Dame opens with none of it

On Sunday, September 6, Notre Dame plays Wisconsin at Lambeau Field. The Irish are the home team on the ticket. They will not be at home.

Green Bay is about 135 miles from Madison and about 250 from South Bend; it is a neutral site that leans the other way.

Run the numbers on it. Notre Dame gives up the five ranks it would have banked in South Bend. Wisconsin avoids the eight it would have paid on the road. The stadium does more for the Badgers than it does for the Irish.

It will not decide this one. The preseason composite has Notre Dame fourth and Wisconsin fifty-third, and thirteen ranks does not close forty-nine. But hold onto the habit, because most weeks the gap is small and the venue is the whole story.

What to take home: the name points at the wrong team

“Home field advantage” is two words about the host. It sends you looking at the crowd. The evidence says look at the bus.

That matters because the name decides what people try to fix. Believe in home cooking and you build a louder stadium; believe in road sickness and you fly out a day early, and you spend the money on sleep.

Take the habit with you. When you meet an effect named as a bonus for one side, ask whether it is really a cost to the other. Hospitals with better outcomes, schools in better neighbourhoods, funds with better years — each one is a gap somebody named from one end.

Same number. Different cause. Different fix.