Arena today In play5 09:12 WAT18+
Norway NM Cupen Wed 16 Sep 2026 Full time

Os

WWWWL
1–2
Half-time 1–0

Brann

WWDLL
4%P(1)19%P(X)77%P(2)
λ home
0.56
λ away
2.44
Σλ total
3.00
P(over 2.5)
58%
P(BTTS)
51%
Modal score
0–2 14.9%

Os vs Brann prediction & xG model: Both teams to score

Graded on the 90-minute score: the pick landed ✓

Model sheet

How the numbers for Os v Brann are calculated

Every figure on this page comes from the steps below – nothing is adjusted by hand.

1

Expected goals (λ)

Ratings fitted to all competitions results (24 and 41 matches). 1.00 = average attack or defence.

League avg goalsAttackOpp. defenceλ (ratings)
Os (home)1.661.490.701.75
Brann (away)1.381.480.921.87

λhome = μhome × Atthome × Defaway = 1.66 × 1.49 × 0.70 ≈ 1.75

Total-goals sourceEstimateWeight
Team ratings3.6264%
Statistical xG feed3.0036%
Blended total λ3.00100%

Split by team strength and the 1X2 balance → λhome = 0.56, λaway = 2.44

2

Poisson goal distributions

P(k goals) = e−λ · λk ÷ k!

Os λ = 0.56
057.3%
131.9%
28.9%
31.7%
40.2%
5+0.0%
Brann λ = 2.44
08.7%
121.2%
225.9%
321.1%
412.9%
5+10.1%
3

Score grid

Each cell = P(home goals) × P(away goals). Below the diagonal is a home win, the diagonal a draw, above it an away win.

Os \ Bra012345+
05.01215127.45.8
12.86.88.36.74.13.2
20.81.92.31.91.10.9
3······
4······
5+······
Σ home-win cells
6.6%
Σ draw cells
14.4%
Σ away-win cells
79.0%
Most probable score
0–2 · 14.9%
4

Blending with the market

Our ratings grid is combined with the statistical feed (60 / 40), then blended with the bookmaker's margin-free probabilities (58 / 42) so late team news is not missed.

OutcomeRatingsFeedMarket*Final
1 Os36.1%5.0%3.2%4.2%
X Draw22.6%25.0%10.9%19.1%
2 Brann41.3%70.0%85.9%76.7%

Bookmaker margin (overround) on 1X2: Σ(1 ÷ odds) = 1.078 → 7.8% removed before blending (*market column).

5

Every market: fair odds, implied probability and EV

Fair odds = 1 ÷ p · Implied = 1 ÷ odds (margin included) · EV = p × odds − 1 · positive EV only when p > implied

SelectionpFairBest oddsImpliedEVAdd
1X2
1 · Os4.2%23.5729.003.4%+23.1%
X · Draw19.1%5.248.5011.8%+62.2%
2 · Brann76.7%1.301.0892.6%-17.2%
Double chance
1X23.3%4.297.0014.3%+63.3%
X295.8%1.041.0298.0%-2.3%
1280.9%1.241.0694.3%-14.2%
Draw no bet
DNB Os5.2%19.07–––
DNB Brann94.8%1.06–––
Goal lines
Over 1.580.1%1.25–––
Under 1.519.9%5.02–––
Over 2.557.7%1.73–––
Under 2.542.3%2.36–––
Over 3.535.3%2.83–––
Under 3.564.7%1.55–––
Both teams to score
BTTS yes pick50.6%1.972.0548.8%+3.8%
BTTS no49.4%2.031.6759.9%-17.6%
Half-time
HT 18.4%11.89–––
HT X34.3%2.92–––
HT 257.3%1.74–––
6

The selection

Model pickBoth teams to score
Probability50.6%
Fair odds1.97
Best odds2.05
EV per unit+3.8%

EV = 0.506 × 2.05 − 1 = +0.038 · Kelly f* = (b·p − q) ÷ b = 0.036 → quarter-Kelly, capped at 2%: 0.9% of bankroll

A guide to sizing, not advice. Graded on the 90-minute score. 18+.

Recent form, in numbers

last 6 matches · 90-minute scores
MetricOsBrann
SequenceLWWWWWLLDWWD
Matches66
W-D-L5-0-12-2-2
Points per match2.501.33
Goals for / match3.171.50
Goals against / match1.171.17
Over 2.567%50%
BTTS67%50%
Clean sheets33%33%
Failed to score0%33%

What the numbers say

by Ade Ola, Winning Arena analyst

1X2 probabilities

Brann favoured on the road at 77% – the ratings gap outweighs home advantage.

Form

Os, last six: L W W W W W – five wins in total. Latest: 2–3 away at Fana. 3.2 goals a match in that spell.

Brann have two wins from their last six (L L D W W D). Latest: 0–2 away at Start. Per match: 1.5 scored, 1.2 conceded.

Expected goals (xG)

xG Os 0.56 · Brann 2.44 · total 3.00. High total: over 2.5 58%, BTTS 51%.

Model selection (graded)

Pre-match selection: Both teams to score, probability 51%, odds 2.05 v fair 1.97. Most probable score: Os 1–2 Brann. Graded at 90 minutes. 18+ – bet within your means.

Head-to-head

Every meeting →

No previous meeting in our data.

More NM Cupen predictions

League page →

Frequently asked questions

What is the Winning Arena prediction for Os vs Brann?

The Model pick is Both teams to score with a model probability of 51, priced around 2.05 by the bookmakers.

What are the Os v Brann probabilities?

Os win 4%, draw 19%, Brann win 77%.

What is the most probable score for Os vs Brann?

Os 1–2 Brann is the highest cell in the Poisson grid.

What is the xG for Os vs Brann?

Os 0.56, Brann 2.44 – over 2.5 at 58%, BTTS at 51%.

What time is Os vs Brann?

Wednesday 16 September 2026, 17:00 WAT – NM Cupen.