World Cup · Group Stage - 2
HT 0–0
4.40
yellows per match
0.40
reds per match
5
matches of data
5 matches is a small sample — these averages are noisy and should not be read as a tendency.
No probability is published for this match.
Only 0 matches of data exist in this league before this date. A rating computed from that little data is nothing but noise.
Week 2 of the season. This prediction was computed from previous seasons. Summer transfers, budget changes and squad rebuilds aren't in the ratings yet — the model can only see that a team has been rebuilt once new results come in.
We measured this: the bias is only pronounced in the opening week. In this week the model's overall accuracy does not separate from the rest of the season — that is, we found no measurable flaw. The one tendency across all opening weeks is that home wins are called slightly too often (said 43.0%, got 41.9%; n=583).
This sample is small and not statistically established, which is why we do not correct the model for it. The correction we tried (pulling probabilities toward the league average) didn't win on holdout, so it wasn't added. Read opening-week predictions with a little more caution.