
St. Louis Cardinals vs. Arizona Diamondbacks
Core Summary
According to the latest prediction market data for the query “St. Louis Cardinals vs. Arizona Diamondbacks”, traders have formed a strong consensus.
Currently, 1st 5 Innings O/U 2.5 is dominating the market with an overwhelming 7,950% chance of winning. 1st 5 Innings O/U 3.5 follows in second place at 6,750%, while 1st 5 Innings O/U 4.5 sits in third with 5,850%. The betting volume for this specific market has already reached $320.9K, reflecting intense industry interest.
Breakdown of Competitive Tiers
To better assess where each potential outcome stands, the market can be segmented into three distinct trading tiers based on implied probability and contract pricing:
🥇 Tier 1: The Dominant Leader
- 1st 5 Innings O/U 2.5 (7,950%): Currently commanding the highest probability, 1st 5 Innings O/U 2.5 is heavily favored by the order book. Traders looking to back this outcome face a “Buy Yes” contract price of 7,950¢, signaling a high degree of market conviction.
🥈 Tier 2: The Primary Challengers
- 1st 5 Innings O/U 3.5 (6,750%): Positioned as the most viable alternative, 1st 5 Innings O/U 3.5 maintains a 6,750% chance of resolving true. Its “Buy Yes” shares currently trade at 6,750¢.
- 1st 5 Innings O/U 4.5 (5,850%): Sitting in third place with a 5,850% probability, the market shows measured skepticism toward 1st 5 Innings O/U 4.5, treating it as an outside wildcard unless momentum shifts.
🥉 Tier 3: The Long-Tail Options (Combining for ~0%)
Beyond the top three choices, a wide field of macro variables and long-shot outcomes are being tracked. While their individual probabilities hover low, they represent crucial hedges for speculative traders:
- Alternative Options: This includes NRFI (5,300%), St. Louis Cardinals vs. Arizona Diamondbacks (4,750%), and 1st 5 Innings O/U 5.5 (4,550%).
- Speculative Volume: Despite low statistical likelihood, certain long-tail contracts like O/U 9.5 are still attracting notable interest.
Comprehensive Order Book & Pricing Dashboard
The table below outlines the full breakdown of contract prices, probabilities, and market depth for all listed outcomes in this prediction pool:
| Rank | Predicted Outcome | Win Probability | Trading Volume | Buy Yes (Cost) | Buy No (Cost) |
|---|---|---|---|---|---|
| 1 | 1st 5 Innings O/U 2.5 | 7950.0% | — | 7950¢ | -7850¢ |
| 2 | 1st 5 Innings O/U 3.5 | 6750.0% | — | 6750¢ | -6650¢ |
| 3 | 1st 5 Innings O/U 4.5 | 5850.0% | $174 | 5850¢ | -5750¢ |
| 4 | NRFI | 5300.0% | $1.3K | 5300¢ | -5200¢ |
| 5 | St. Louis Cardinals vs. Arizona Diamondbacks | 4750.0% | $321.8K | 4750¢ | -4650¢ |
| 6 | 1st 5 Innings O/U 5.5 | 4550.0% | $118 | 4550¢ | -4450¢ |
| 7 | O/U 9.5 | 4450.0% | $2.0K | 4450¢ | -4350¢ |
| 8 | Spread -1.5 | 3750.0% | $976 | 3750¢ | -3650¢ |
| 9 | 1st 5 Innings O/U 6.5 | 3450.0% | — | 3450¢ | -3350¢ |
| 10 | 1st 5 Innings Spread -1.5 | 3200.0% | — | 3200¢ | -3100¢ |
| 11 | 1st 5 Innings Spread -1.5 | 3050.0% | — | 3050¢ | -2950¢ |
| 12 | 1st 5 Innings Spread -2.5 | 2350.0% | $27 | 2350¢ | -2250¢ |
| 13 | 1st 5 Innings Spread -2.5 | 2150.0% | $27 | 2150¢ | -2050¢ |
| 14 | Extra Innings | 700.0% | $1.6K | 700¢ | -600¢ |
Result Rules
In the upcoming MLB game between the St. Louis Cardinals and Arizona Diamondbacks, scheduled for July 17 at 9:40PM ET:
This market will resolve to "St. Louis Cardinals" if the St. Louis Cardinals win the game.
This market will resolve to "Arizona Diamondbacks" if the Arizona Diamondbacks win the game.
If the game is postponed, this market will remain open until the game has been completed. If the game is canceled entirely, with no make-up game, or ends in a tie, this market will resolve 50-50.
The primary resolution source for this market is the official final statistics of the event as recognized by the governing body or event organizers. However, if the governing body or event organizers have not published final match statistics within 24 hours after the event's conclusion, a consensus of credible reporting may be used instead.
Trade Activities
Here is the trade activities for this event.
Jul 17, 2026
- 08:10 PMSCsc1pt0x$24.08
Bought 44.585817 Yes for Will there be a run scored in the first inning?: St. Louis Cardinals vs. Arizona Diamondbacks at 0.54
- 08:10 PMSCsc1pt0x$33.00
Bought 57.894734 Under for St. Louis Cardinals vs. Arizona Diamondbacks: O/U 9.5 at 0.57
- 08:09 PMSCsc1pt0x$33.64
Bought 65.960783 Arizona Diamondbacks for St. Louis Cardinals vs. Arizona Diamondbacks at 0.51
- 07:56 PM——$5.00
Bought 9.80392 Arizona Diamondbacks for St. Louis Cardinals vs. Arizona Diamondbacks at 0.51
- 07:52 PM-T-TrustMeBro-$5.00
Bought 9.80392 Arizona Diamondbacks for St. Louis Cardinals vs. Arizona Diamondbacks at 0.51
- 07:48 PMDOdongago3$1.50
Bought 2.631576 Under for St. Louis Cardinals vs. Arizona Diamondbacks: O/U 9.5 at 0.57
- 07:43 PMLOlovevul3cl33$50.00
Bought 98.039214 Arizona Diamondbacks for St. Louis Cardinals vs. Arizona Diamondbacks at 0.51
- 07:40 PMCUcumulus33$595.00
Bought 1190 St. Louis Cardinals for St. Louis Cardinals vs. Arizona Diamondbacks at 0.5
- 06:58 PMHOHomeRunHazard$244.78
Bought 437.11 Under for St. Louis Cardinals vs. Arizona Diamondbacks: O/U 9.5 at 0.56
- 06:51 PMM3M3RL1N$2.30
Bought 5.11111 Over for St. Louis Cardinals vs. Arizona Diamondbacks: O/U 9.5 at 0.45
- 06:29 PMOLOlma$2.00
Bought 4 St. Louis Cardinals for St. Louis Cardinals vs. Arizona Diamondbacks at 0.5
- 06:24 PMM3M3RL1N$2.50
Bought 5 St. Louis Cardinals for St. Louis Cardinals vs. Arizona Diamondbacks at 0.5
Whales Wallets That Are Betting on This Event
Frequently Asked Questions
What is the current market consensus on "St. Louis Cardinals vs. Arizona Diamondbacks"?
As of the latest update, 1st 5 Innings O/U 2.5 leads the field as the frontrunner with a 7,950% win probability, followed by 1st 5 Innings O/U 3.5 at 6,750% and 1st 5 Innings O/U 4.5 at 5,850%. Total trading volume for this pool has reached $320.9K, indicating deep liquidity and high trader engagement.
