Scoreo

San Marcos de Arica vs Santiago WanderersPrimera B 2026

3/16/2025Primera BPrimera B · Round 4Estadio Carlos Dittborn

Match Prediction

Statistical Prediction

Based on goals from last 88+ matches

San Marcos de Arica41%
×Draw27%
Santiago Wanderers31%
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.

San Marcos de Arica
1.33
Santiago Wanderers
1.12

San Marcos de Arica creates 19% more chances

Season form · 89 home / 88 away

creates per match

San Marcos de Arica
1.37
Santiago Wanderers
1.17

allows per match

San Marcos de Arica
1.07
Santiago Wanderers
1.30

finishing

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

Total goals

56%Under
  • Under56
  • Over44

Fewer than 3 goals likely

Both teams score

50%No
  • No50
  • Yes50

Close call

Score probability

Probability of each scoreline, %

San Marcos de Arica

Santiago Wanderers
0
1
2
3
4
0
009%
0110%
025%
032%
041%
1
1011%
1113%
127%
133%
141%
2
208%
219%
225%
232%
241%
3
303%
314%
322%
331%
340%
4
401%
411%
421%
430%
440%

Most likely 1–1 (13%) · grid covers 98% of scorelines

More markets

Total goals

OverUnder0.5
91%9%1.5
70%30%2.5
44%56%3.5
23%77%4.5
10%90%

Double chance

San Marcos de Arica or draw
69%
San Marcos de Arica or Santiago Wanderers
73%
Draw or Santiago Wanderers
59%

Winning margin

San Marcos de Arica wins by 2+
19%
Santiago Wanderers wins by 2+
12%

Team goals

San Marcos de Arica 1+ goals
74%
San Marcos de Arica 2+ goals
38%
San Marcos de Arica 3+ goals
15%
Santiago Wanderers 1+ goals
67%
Santiago Wanderers 2+ goals
31%
Santiago Wanderers 3+ goals
10%

Draw no bet

San Marcos de Arica (draw refunded)
57%
Santiago Wanderers (draw refunded)
43%

Combos

Both score & 3+ goals
37%
Both score & under 3
13%

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

San Marcos de Arica at homecreates 1.37, concedes 1.07 · 89 matches

Santiago Wanderers awaycreates 1.17, concedes 1.30 · 88 matches

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

2

Expected goals for this match

San Marcos de Arica attack 1.37 + Santiago Wanderers defence 1.30 → ÷2 → 1.33

Santiago Wanderers attack 1.17 + San Marcos de Arica defence 1.07 → ÷2 → 1.12

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 41%?"

San Marcos de Arica scores more
41%
level
27%
Santiago Wanderers scores more
31%

San Marcos de Arica at 41% 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 41% does not mean "San Marcos de Arica 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.

San
Santiago
G. Cavalieri
Manager: G. Cavalieri
71'C. CaceresA. Abalos
71'D. BravoD. Plaza
81'F. VelazcoM. Camarda

San Marcos de Arica substitutes

75'F. CubillosD. Torres Quintana
75'J. ValladaresC. A. Astroza Zambrano
86'R. ParraV. Espinoza
86'M. CuadraJ. Gatica
90+3'J. SilvaJ. Luna

Santiago Wanderers substitutes

Match Recap: San Marcos de Arica vs Santiago Wanderers

Santiago Wanderers beat San Marcos de Arica 2-1 in Primera B on March 16, 2025.

Goals: C. A. Astroza Zambrano (22'), A. Barrios (45'), J. Valladares (90').

The match was played at Estadio Carlos Dittborn in Arica.