Ravens vs. Colts Week 1 Odds & Predictions
Week 1 odds have the Baltimore as favorites over the Indianapolis at -167 or 62.5% implied probability to win when the two teams meet on September 13. Indianapolis trades at +163 (38.0%). Our Ravens vs. Colts Week 1 odds aggregates lines from prediction markets.with lines and volume data updated hourly.
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Week 1 odds movement: Ravens vs. Colts
Hover for details · Cursor-synced tooltips
Tap "Chart settings" to adjust the chart.
Chart settings
Current Odds Snapshot
Current probabilities across platforms with liquidity indicators
BABaltimore
Vol $156.4K
Spread 1.0%
Agg
62.5%↓ -0.5%
K
62.5%
U
62.5%
G
61.5%
INIndianapolis
Vol $157.0K
Spread 1.0%
Agg
38.0%↑ +2.0%
U
38.0%
K
37.0%
G
37.0%
| Outcome | Aggregated | Spread | Volume | Kalshi | Polymarket US | Gemini |
|---|---|---|---|---|---|---|
BA Baltimore | 62.5% ↓ -0.5% | 1.0% | $156.4K |
Kalshi
62.5%
|
Polymarket US
62.5%
|
Gemini
61.5%
|
IN Indianapolis | 38.0% ↑ +2.0% | 1.0% | $157.0K |
Kalshi
37.0%
|
Polymarket US
38.0%
|
Gemini
37.0%
|
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 |
|---|---|---|---|---|---|---|---|
BA Baltimore |
Gemini
→
Polymarket US | Buy @ G 62¢ | Sell @ U 62¢ | +0.00% | -0.25% |
No | |
IN Indianapolis |
Kalshi
→
Polymarket US | Buy @ K 38¢ | Sell @ U 37.5¢ | -0.50% | -0.88% |
No |
Outcome Diff
| Outcome A | Outcome B | Venue | A Odds | B Odds | Diff | Strategy | Trade Now |
|---|---|---|---|---|---|---|---|
BA Baltimore |
IN Indianapolis |
Kalshi | A 62.5% | B 37.0% | +25.50% | Buy spread | |
BA Baltimore |
IN Indianapolis |
Polymarket US | A 62.5% | B 38.0% | +24.50% | Buy spread | |
BA Baltimore |
IN Indianapolis |
Gemini | A 61.5% | B 37.0% | +24.50% | 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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