luckadjusted
World Cup Final · 2026

Matchday 2 · World Cup 2018 · June 22, 2018

Brazil 2–0 Costa Rica: who deserved to win?

Brazil beat Costa Rica 2–0, and the replays back it up: with the way both teams played, Brazil win 9 of 10, 1 end level. Brazil made the better chances: 3.1 expected goals to 0.2.

Full time

TeamGoalsxG
Brazil 2 3.10
Costa Rica 0 0.16

June 22, 2018 · Saint-Petersburg Stadium ( Gazprom Arena ) · Referee: Björn Kuipers

Luck index +4 Brazil about even · −4 Costa Rica

Each team’s own shots from this match, resampled into new matches 4,000 times, each a goal at its expected-goals chance: with the way both teams actually played, how often does this performance win? How the replay works

Ten replays. Brazil win 9, 1 ends level, Costa Rica win 0.

  1. 1 BRA 1 CRC 0
  2. 2 BRA 2 CRC 0
  3. 3 BRA 2 CRC 0
  4. 4 BRA 4 CRC 1
  5. 5 BRA 3 CRC 0
  6. 6 BRA 4 CRC 0
  7. 7 BRA 4 CRC 0
  8. 8 BRA 5 CRC 0
  9. 9 BRA 6 CRC 0
  10. 10 BRA 0 CRC 0

The narrowest view of luck

The same match, with only the coin flips re-rolled: every shot kept where and how it was taken, its outcome redrawn at its chance (75% of finishing counts as luck), own goals at the league’s rate.

There is no betting line for this match, and no forecast from before kickoff: matches of past seasons are replayed, not forecast.

How 4,000 replays of the 90 minutes ended

Brazil win 94%, 5% end level, Costa Rica win 1%. The line is what actually happened: Brazil by 2.

Show as a table
After 90 minutes in the replaysShare of replays
Brazil by 3+62.2%
Brazil by 218.5%
Brazil by 112.8%
Draw5.4%
Costa Rica by 10.9%
Costa Rica by 20.1%
Costa Rica by 3+0.0%

Where the luck was

FinishingShotsGoalsExpected goalsAbove expected
Brazil2323.10−1.10
Costa Rica400.16−0.16

Own goals aren’t shots, so they’re counted on their own. A side above expected finished better than its chances, or met a goalkeeper on a bad day; 75% of the gap counts as luck (why that share).

The big chances, and every goal

MinuteChancexG
47'Neymar da Silva Santos Junior didn’t score from a shot0.49
90'Philippe Coutinho Correia scored from a shot0.42
96'Neymar da Silva Santos Junior scored from a shot0.84

When it happened

Brazil’s chance of winning

Numbers mark the biggest luck moments, listed below.

Our in-game win probability: the score and the minutes left, with goals for the rest of the match at the league’s rates. A draw counts half, as in the replays. Shaded above the middle while Brazil was ahead in it, below while Costa Rica was.
#WhenWhat happenedWin probability for
1 47' Neymar da Silva Santos Junior didn’t score from a shotFinishing · 49% chance +16% CRC
2 48' Gabriel Fernando de Jesus didn’t score from a shotFinishing · 19% chance +6% CRC
3 55' Neymar da Silva Santos Junior didn’t score from a shotFinishing · 18% chance +6% CRC
4 60' Gabriel Fernando de Jesus didn’t score from a shotFinishing · 9% chance +3% CRC
5 68' Thiago Emiliano da Silva didn’t score from a shotFinishing · 10% chance +4% CRC
6 69' Carlos Henrique Casimiro didn’t score from a shotFinishing · 10% chance +4% CRC
7 71' Neymar da Silva Santos Junior didn’t score from a shotFinishing · 11% chance +4% CRC
8 90' Philippe Coutinho Correia scored from a shotFinishing · 42% chance +29% BRA

Adjust the assumptions

Think finishing is more skill than we do? Change how much of it counts as luck and the coin-flip replay of the 90 minutes reruns in your browser.

Only coin-flips re-rolled

Brazil 99% · draw 1% · Costa Rica 0%

Final margin
Brazil by 2
Luck in goals
0.7 for Costa Rica
Luck-adjusted margin
Brazil by 2.7
Replay with same day's form
Brazil 94% · draw 5% · Costa Rica 1% unchanged: why
How much of each is luck?

0% treats it as skill, 100% as pure luck. The tick is our fit.

What counts
Flip a play

Force the other outcome, in this match and in every replay: a goal becomes a save, a chance goes in.

About these numbers

Expected goals per shot from StatsBomb’s open data; the replays, the in-game win probability and the luck shares are our own models, fitted and tested on every shot of four full league seasons and four tournaments, these matches included (methodology and validation). Brazil win 96% of replays (a draw counted as half).

All matchday 2 matches, 2018 · Brazil · Costa Rica

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