UEFA Champions League · Quarter-finals
HT 0–0
Too close to call — we gave this result 34%double chance: correct
This verdict goes into the public record unchanged; we do not filter out the ones we get wrong. The model's track record
| Sporting CP | Arsenal | |
|---|---|---|
| 11 | Shots | 8 |
| 5 | Shots on target | 4 |
| 8 | Shots inside the box | 4 |
| 3 | Goalkeeper saves | 5 |
| 3 | Corners | 4 |
| 2 | Offsides | 2 |
| 44% | Possession | 56% |
| 405 | Passes | 510 |
| 345 | Accurate passes |
4.63
yellows per match
0.20
reds per match
97
matches of data
This is a prediction, not a guarantee; a probability is not a certainty.
These sentences are built by a fixed template; every number in them comes straight from the model's computation, none invented while the text was written.
When the model has said 35–40% in the past, 1,562 of 4,187 predictions were correct (37.3%). Accuracy record →
| 467 |
| 11 | Fouls | 10 |
|---|
| 1 | Yellow cards | 0 |
|---|
| 0 | Red cards | 0 |
|---|
The measurements our data provider sent for this match. A row that was not measured shows “—”; writing 0 into an empty field would claim we measured it and found none.
When the model has said 45–50% in the past, 1,425 of 3,100 predictions were correct (46.0%). Accuracy record →
These three values add up to 200%, not 100% — and that is not a mistake. The options are not mutually exclusive; every outcome is counted in two of them. For the same reason 1X plus X2 exceeds 100% by exactly the probability of a draw (27.6%).
The 3+ goals prediction is not published for this match.
The model gives a probability below the baseline (57.1%). In backtesting the model's edge in the "fewer goals" direction could not be confirmed; we don't publish an unconfirmed prediction.
Expected goals comes out of a team's attack weighed against its opponent's defence. A strong attack is damped when it meets a strong defence — which is why comparing the ratings on their own is misleading.
Attack: Sporting CP score 70% more than the league's average team — one of the sharpest attacks in the league.
Opponent's defence: Arsenal concede 42% below the league average — a defence that seriously brakes even a strong attack.
Result: A strong attack meets a strong defence. The two largely cancel and the expectation drops to 1.18 goals — markedly lower than the attack alone would promise.
Attack: Arsenal score above the league average (25% more).
Opponent's defence: Sporting CP concede 43% below the league average — a defence that seriously brakes even a strong attack.
Result: These two effects give an expectation of 1.11 goals (including the away penalty).
A single scoreline is always less likely than an outcome: “home win” is the sum of 1-0, 2-0, 2-1 and dozens more. So the most likely single score can be a draw while the most likely outcome is a home win; the two do not contradict each other.
Ratings were computed from 2617 matches played in this league before kick-off; the team with fewer has 129 matches. No data from after the match was used. The model's track record is published unfiltered.