Scoreo

Santiago Wanderers vs San Marcos de AricaPrimera B 2026

S. Felipe 21'
8/4/2025Primera BPrimera B · Round 19Estadio Bicentenario Lucio Fariña

Match Prediction

Statistical Prediction

Based on goals from last 87+ matches

Santiago Wanderers47%
×Draw26%
San Marcos de Arica27%
Correct in 50 of 100 matches — 5 more than always backing the home side
Model
50.2%
Always home
44.5%

The model picks a winner (home or away) for each finished match using only pre-kickoff data, then checks it against the real result: 50.2% correct across 585,598 matches, vs 44.5% for always backing the home side.

Home picks 50.5% correct · Away picks 49.3% correct

Football matches only. Past performance is not indicative of future results.

Expected goals in this match

What is xG?

Every shot is scored 0–1 by how likely it is to be a goal from that spot — a chance in the middle of the box ≈ 0.4, a long shot from a tight angle ≈ 0.03, a penalty ≈ 0.76. Add them up over a match and that is the xG.

The scoreline can lie: you can win 1-0 on a fluke while creating half the chances. xG shows who was really closer to scoring — and over a season it predicts results better than goals alone.

Santiago Wanderers
1.53
San Marcos de Arica
1.10

Santiago Wanderers creates 39% more chances

Season form · 88 home / 87 away

creates per match

Santiago Wanderers
1.64
San Marcos de Arica
1.13

allows per match

Santiago Wanderers
1.07
San Marcos de Arica
1.43

finishing

Santiago Wanderers+0.00on par
San Marcos de Arica+0.00on par

Total goals

51%Under
  • Under51
  • Over49

Close call

Both teams score

52%Yes
  • Yes52
  • No48

Close call

Score probability

Probability of each scoreline, %

Santiago Wanderers

San Marcos de Arica
0
1
2
3
4
0
007%
018%
024%
032%
040%
1
1011%
1112%
127%
132%
141%
2
208%
219%
225%
232%
241%
3
304%
315%
323%
331%
340%
4
402%
412%
421%
430%
440%

Most likely 1–1 (12%) · grid covers 98% of scorelines

More markets

Total goals

OverUnder0.5
93%7%1.5
74%26%2.5
49%51%3.5
27%73%4.5
13%87%

Double chance

Santiago Wanderers or draw
73%
Santiago Wanderers or San Marcos de Arica
74%
Draw or San Marcos de Arica
53%

Winning margin

Santiago Wanderers wins by 2+
24%
San Marcos de Arica wins by 2+
11%

Team goals

Santiago Wanderers 1+ goals
78%
Santiago Wanderers 2+ goals
45%
Santiago Wanderers 3+ goals
20%
San Marcos de Arica 1+ goals
67%
San Marcos de Arica 2+ goals
30%
San Marcos de Arica 3+ goals
10%

Draw no bet

Santiago Wanderers (draw refunded)
63%
San Marcos de Arica (draw refunded)
37%

Combos

Both score & 3+ goals
40%
Both score & under 3
12%

Model probabilities, not odds. For information only.

How is this calculated?

Every number below comes from this match — nothing is made up.

1

Recent form of each side

Santiago Wanderers at homecreates 1.64, concedes 1.07 · 88 matches

San Marcos de Arica awaycreates 1.13, concedes 1.43 · 87 matches

Home and away form are counted separately — the home-field edge is already baked into these numbers.

2

Expected goals for this match

Santiago Wanderers attack 1.64 + San Marcos de Arica defence 1.43 → ÷2 → 1.53

San Marcos de Arica attack 1.13 + Santiago Wanderers defence 1.07 → ÷2 → 1.10

Each side's attack is blended with the other's defence, then averaged.

3

Chance of every scoreline

From those two numbers a Poisson distribution gives the probability of each exact score — the grid shown above.

4

The answer to "why 47%?"

Santiago Wanderers scores more
47%
level
26%
San Marcos de Arica scores more
27%

Santiago Wanderers at 47% is simply the biggest of the three — that is the pick.

What the model can't see

It reads only the stats of recent matches. It knows nothing about:

  • injuries & suspensions
  • the matchday lineup
  • motivation — cup, relegation, a title race
  • weather & pitch condition
  • in-game coaching decisions

So 47% does not mean "Santiago Wanderers will win" — it means "on the available stats, this is the most likely result."

Statistical model based on expected goals (xG). For informational purposes only.

Santiago
San
67'J. SalasA. Herrera
70'J. SilvaJ. Gatica
83'L. MargasM. Cuadra
83'D. OpazoJ. Duma
83'E. GutierrezJ. Luna

Santiago Wanderers substitutes

G. Cavalieri
Manager: G. Cavalieri
69'G. CubillosR. Campos
78'M. CamardaA. Abalos
78'N. A. GaunaI. Muller
90+1'M. GodoyJ. Rivera

San Marcos de Arica substitutes

Santiago Wanderers 1 – 0 San Marcos de Arica

Santiago Wanderers beat San Marcos de Arica 1-0 in Primera B on August 4, 2025.

Goals: S. Felipe (21').

The match was played at Estadio Bicentenario Lucio Fariña in Quillota.