Packers vs. Vikings Week 1 Odds & Predictions
The Minnesota are favored to beat Green Bay in Week 1 at prediction markets with -111 odds or 52.5% implied probability when the NFC North rivals meet on September 13. The Green Bay trade at +115 (46.5%) in the same contract. Our odds tracker aggregates live pricing using volume-weighted average pricing (VWAP), with hourly updates.
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Current Vikings vs. Packers Odds from Kalshi
Current probabilities across platforms with liquidity indicators
MIMinnesota
Vol $3.3K
Spread 0.5%
Agg
52.5%↑ +0.5%
K
52.5%
U
52.5%
G
52.0%
GBGreen Bay
Vol $9.5K
Spread 1.5%
Agg
46.5%↓ -2.0%
U
48.0%
G
47.0%
K
46.5%
| Outcome | Aggregated | Spread | Volume | Kalshi | Polymarket US | Gemini |
|---|---|---|---|---|---|---|
MI Minnesota | 52.5% ↑ +0.5% | 0.5% | $3.3K |
Kalshi
52.5%
|
Polymarket US
52.5%
|
Gemini
52.0%
|
GB Green Bay | 46.5% ↓ -2.0% | 1.5% | $9.5K |
Kalshi
46.5%
|
Polymarket US
48.0%
|
Gemini
47.0%
|
Week 1 line movement: Packers vs. Vikings
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Tap "Chart settings" to adjust the chart.
Chart settings
Arbitrage Scanner
Current cross-venue opportunities with fee calculations
Pairs (Venue-to-Venue)
| Outcome | Venue Pair | Leg A (Buy) | Leg B (Sell) | Gross Spread | After Fees | Actionable | Trade Now |
|---|---|---|---|---|---|---|---|
GB Green Bay |
Kalshi
→
Polymarket US | Buy @ K 47¢ | Sell @ U 47.5¢ | +0.50% | +0.03% |
No | |
MI Minnesota |
Polymarket US
→
Kalshi | Buy @ U 52.5¢ | Sell @ K 52¢ | -0.50% | -1.02% |
No |
Outcome Diff
| Outcome A | Outcome B | Venue | A Odds | B Odds | Diff | Strategy | Trade Now |
|---|---|---|---|---|---|---|---|
MI Minnesota |
GB Green Bay |
Kalshi | A 52.5% | B 46.5% | +6.00% | Buy spread | |
MI Minnesota |
GB Green Bay |
Gemini | A 52.0% | B 47.0% | +5.00% | Buy spread | |
MI Minnesota |
GB Green Bay |
Polymarket US | A 52.5% | B 48.0% | +4.50% | Buy spread |
After-fee spreads apply the configured taker-fee model per side. Depth/slippage is not modeled in this scanner.
Methodology & Data Mapping
How we aggregate, normalize, and map cross-platform data
Default: Volume-Weighted Average Price (VWAP)
Weights each mapped market by its reported 24H USD volume at snapshot time. If volume is unavailable, we fall back to a simple average for that snapshot.
Use the VWAP/Simple toggle above the chart to switch aggregation views.
Kalshi: Official API (best bid/ask + last + 24H volume/liquidity when available).
Polymarket US: Gateway market data (yes/no prices + best bid/ask + market stats for volume/open interest where available).
Gemini: Public Prediction Markets + ticker endpoints (best bid/ask + last + 24H USD volume when available).
Event data is updated hourly. Older history is downsampled.
Each event links one or more markets per provider. We normalize labels, map provider outcomes into a shared outcome list, and merge mapped markets where appropriate.
Cross-venue spread: Max–min difference across available venue probabilities for the same outcome.
Liquidity: Relative per-venue indicators based on provider liquidity fields (no depth/slippage modeling).
Arbitrage: Computed from best bid/ask when available (otherwise mid); after-fee spread applies the configured fee model only.
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