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Vipers vs Adelaide Olympic — South Australia State League 1 2021

Vipers
Vipers
FT
2 – 1
HT: 1 – 0
Adelaide Olympic
Adelaide Olympic
5/24/2025South Australia State League 1South Australia State League 1 · Round 11Apex Football Centre Pitch 1

Match Prediction

Statistical Prediction

Based on goals from last 19+ matches

Vipers46%
×Draw22%
Adelaide Olympic32%
✓ Correct in 50 of 100 matches — 6 more than always backing the home side
Model
49.7%
Always home
44.3%

The model picks a winner (home or away) for each finished match using only pre-kickoff data, then checks it against the real result: 49.7% correct across 106,786 matches, vs 44.3% for always backing the home side.

Home picks 50.7% correct · Away picks 47.3% 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.

Vipers
1.94
Adelaide Olympic
1.58

Vipers creates 23% more chances

Season form · 33 home / 19 away

creates per match

Vipers
1.76
Adelaide Olympic
1.47

allows per match

Vipers
1.70
Adelaide Olympic
2.11

finishing

Vipers+0.00on par
Adelaide Olympic+0.00on par

Total goals

68%Over
  • Over68
  • Under32

3+ goals likely

Both teams score

68%Yes
  • Yes68
  • No32

Both teams likely to score

Score probability

Probability of each scoreline, %

Vipers ↓

Adelaide Olympic →
0
1
2
3
4
0
0–03%
0–15%
0–24%
0–32%
0–41%
1
1–06%
1–19%
1–27%
1–34%
1–41%
2
2–06%
2–19%
2–27%
2–34%
2–41%
3
3–04%
3–16%
3–25%
3–32%
3–41%
4
4–02%
4–13%
4–22%
4–31%
4–40%

Most likely 1–1 (9%) · grid covers 94% of scorelines

More markets

Total goals

OverUnder0.5
97%3%1.5
87%13%2.5
68%32%3.5
46%54%4.5
27%73%

Double chance

Vipers or draw
68%
Vipers or Adelaide Olympic
78%
Draw or Adelaide Olympic
54%

Winning margin

Vipers wins by 2+
26%
Adelaide Olympic wins by 2+
15%

Team goals

Vipers 1+ goals
86%
Vipers 2+ goals
58%
Vipers 3+ goals
30%
Adelaide Olympic 1+ goals
79%
Adelaide Olympic 2+ goals
47%
Adelaide Olympic 3+ goals
21%

Draw no bet

Vipers (draw refunded)
59%
Adelaide Olympic (draw refunded)
41%

Combos

Both score & 3+ goals
59%
Both score & under 3
9%

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

Vipers at home — creates 1.76, concedes 1.70 · 33 matches

Adelaide Olympic away — creates 1.47, concedes 2.11 · 19 matches

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

2

Expected goals for this match

Vipers attack 1.76 + Adelaide Olympic defence 2.11 → ÷2 → 1.94

Adelaide Olympic attack 1.47 + Vipers defence 1.70 → ÷2 → 1.58

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 46%?"

Vipers scores more
46%
level
22%
Adelaide Olympic scores more
32%

Vipers at 46% 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 46% does not mean "Vipers 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.

Probable lineups not yet announced

Starting lineups are usually confirmed ~1 hour before kickoff

South Australia State League 1: Vipers 2–1 Adelaide Olympic

Vipers beat Adelaide Olympic 2-1 in South Australia State League 1 on May 24, 2025.

The match was played at Apex Football Centre Pitch 1 in Adelaide.