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Show HN: For 10 World Cups, my model's 2 favorites had the champion every time

31 pointsby fabioricardo7today at 11:26 AM45 commentsview on HN

Comments

bArraytoday at 1:45 PM

I've updated the magic weights, and I too can get the result I want:

    WEIGHTS = {
      'w_xg': 0.09,
      'w_goals': -0.07,
      'w_star': 0.018,
      'w_value': 0.18,
      'w_rank': 0.4,
      'w_def': -0.12,
      'xga_share': 0.85,
      'w_gk': 0.0042
    }

    $ python3 worldcup_model.py --sims 100000

    2026 FIFA World Cup -- championship probabilities (100,000 simulations, from Round of 32)

     1. England                 11.7% *
     2. France                  10.0% *
     3. Spain                    9.3% *
     4. Argentina                8.4%
     5. Germany                  8.1%
It's coming home!
immighelpertoday at 12:20 PM

Probably the human pseudonym of Paul the Octopus (https://en.wikipedia.org/wiki/Paul_the_Octopus).

walthamstowtoday at 12:20 PM

It's worth noting that there has only been 24 world cups

bArraytoday at 1:18 PM

I've been messing with the magic value weights, and it doesn't take too much to push them in any given direction. The TEAMS_2026 should really be taken with a pinch of salt.

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xiaodaitoday at 12:51 PM

but does the model predict the right match up along way? if not it's just wrong wrong make a right

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derditoday at 12:21 PM

> Applied prospectively to the in-progress 2026 World Cup from the Round of 32, the model identifies Argentina (28.0%) and Spain (21.1%) as the leading championship candidates.

Seems weird to wait to run the "prospective" simulation until the World Cup is already in progress. Although it seems that the model also needs to use "the actual bracket and group-stage performance". So it's not prospective?

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artur_maklytoday at 1:46 PM

There is no MODEL for pure Argentine magic. vamos carajos! vamooooooooo con todo!!! Our time has come again.

glenpiercetoday at 1:08 PM

Survivor bias

mikelwardtoday at 12:21 PM

> the model identifies Argentina (28.0%) and Spain (21.1%) as the leading championship candidates

mcphagetoday at 12:12 PM

How does this paper not even mention the word "overfitting"?

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amazingamazingtoday at 1:15 PM

Why is the world cup so infrequent anyway? I assume to match olympics?

Good models need a lot of data. Can you really be accurate with what, 30 data points, in which the team composition is basically reset each time?

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dwedgetoday at 12:12 PM

!remindme tomorrow

dwedgetoday at 12:17 PM

A good AI would calculate refereeing decisions and put Argentina at 100% unless England can pull off a miracle against FIFA today.

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yardietoday at 12:42 PM

Does the model account for the blatant favouritism in the refs? We used to laugh about it before but as the cameras have gotten better it has become a lot more visible. And in this case, is turning the tournament into a bit of a joke.

-- Egypt was robbed.

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pessimizertoday at 2:03 PM

Make sure your email is on file with every horrible news outlet in the world so they can write over 9000 stories about you before the next World Cup.

Get a few nice glamorshots and make sure you have something else in the queue before then to plug during the interviews.

xiaodaitoday at 12:48 PM

how statistic significant is it.

pestatijetoday at 12:51 PM

and how many models did you model?

malthaustoday at 12:41 PM

now back your claim with money and bet accordingly on betting sites to see if you uncovered some actual alpha here

killingtime74today at 12:17 PM

"They've done studies, you know. 60% of the time, it works every time." - Brian Fantana, Anchorman

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