Cleveland Guardians vs. Tampa Bay Rays

$135.7K Vol
Oct 21, 2026
Active
Probability Trend
Tampa Bay Rays 55.5%
Cleveland Guardians 44.5%

Core Summary

According to the latest prediction market data for the query “Cleveland Guardians vs. Tampa Bay Rays”, traders have formed a strong consensus.

Currently, NRFI is dominating the market with an overwhelming 44.5% chance of winning. Extra Innings follows in second place at 12%. The betting volume for this specific market has already reached $135.7K, 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

  • NRFI (44.5%): Currently commanding the highest probability, NRFI is heavily favored by the order book. Traders looking to back this outcome face a “Buy Yes” contract price of 45¢, signaling a high degree of market conviction. This contract alone has generated $734 in volume.

🥈 Tier 2: The Primary Challengers

  • Extra Innings (12%): Positioned as the most viable alternative, Extra Innings maintains a 12% chance of resolving true. Its “Buy Yes” shares currently trade at 12¢.

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:

RankPredicted OutcomeWin ProbabilityTrading VolumeBuy Yes (Cost)Buy No (Cost)
1NRFI44.5%$73445¢56¢
2Extra Innings12.0%$1312¢88¢

Result Rules

In the upcoming MLB game between the Cleveland Guardians and Tampa Bay Rays, scheduled for October 13 at 8:00PM ET:

This market will resolve to "Cleveland Guardians" if the Cleveland Guardians win the game.

This market will resolve to "Tampa Bay Rays" if the Tampa Bay Rays 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.

AI Valuation Analysis: Finding Market Mispricings & EV Gaps

While human consensus and speculative volume shape the broader prediction market, our quantitative algorithms offer a data-driven counter-perspective. By analyzing fundamental signals, underlying trends and historical distributions, our AI Valuation model calculates an independent “Fair Value” probability for each outcome.

Comparing this Fair Value against the current Trade Value uncovers major disparities — known as the Expected Value (EV) Gap. Contracts with a positive EV Gap represent statistically underpriced outcomes, whereas a negative EV Gap flags a potential market overreaction.

Top AI Alpha & Mispriced Arbitrage Opportunities

Based on the latest data model run, several key contracts stand out with significant deviations:

  • The Most Overvalued Outcome NRFI currently trades at 44.5%, but our AI places its Fair Value at just 39.8%. This creates a large negative EV Gap of -4.7%, suggesting the crowd may be overhyping this outcome and driving the premium too high.
MarketTrade ValueFair ValueEV Gap
NRFI44.5%39.8%-4.7%
Extra Innings12.0%9.0%-3.0%

Trade Activities

Here is the trade activities for this event.

Oct 13, 2026

  • 01:38 PM
    0X0x55D
    $1.00

    Bought 1.851852 Over for Cleveland Guardians vs. Tampa Bay Rays: O/U 6.5 at 0.54

  • 01:13 PM
    ——
    $5.00

    Bought 9.25926 Over for Cleveland Guardians vs. Tampa Bay Rays: O/U 6.5 at 0.54

  • 12:26 PM
    FEferrariChampions2026
    $122.84

    Bought 332.01 Tampa Bay Rays for Spread: Tampa Bay Rays (-1.5) at 0.37

  • 12:26 PM
    ——
    $1.05

    Bought 2.837838 Tampa Bay Rays for Spread: Tampa Bay Rays (-1.5) at 0.37

  • 12:26 PM
    ——
    $1.05

    Bought 2.763158 Tampa Bay Rays for Spread: Tampa Bay Rays (-1.5) at 0.38

  • 12:26 PM
    FEferrariChampions2026
    $35.95

    Bought 97.16 Tampa Bay Rays for Spread: Tampa Bay Rays (-1.5) at 0.37

  • 12:18 PM
    TOtodamooon
    $20.00

    Bought 35.714286 Tampa Bay Rays for Cleveland Guardians vs. Tampa Bay Rays at 0.56

  • 12:11 PM
    MAmahi234
    $3.91

    Bought 6.982143 Tampa Bay Rays for Cleveland Guardians vs. Tampa Bay Rays at 0.56

  • 11:54 AM
    PHPheyul
    $334.34

    Bought 522.40625 Cleveland Guardians for Spread: Tampa Bay Rays (-1.5) at 0.64

  • 11:50 AM
    PHPheyul
    $13.62

    Bought 24.321429 Tampa Bay Rays for Cleveland Guardians vs. Tampa Bay Rays at 0.56

  • 11:40 AM
    THthatsabing0
    $4.76

    Bought 8.206897 Under for Cleveland Guardians vs. Tampa Bay Rays: O/U 7.5 at 0.58

  • 11:36 AM
    0X0x26FbD0edBc07999967E91a4203598Ca66fCCc70e-1750615733817
    $1.00

    Bought 1.785715 Tampa Bay Rays for Cleveland Guardians vs. Tampa Bay Rays at 0.56

Whales Wallets That Are Betting on This Event

AB1
abura2025
Event PnL
+$12.66
Volume
$9,999.82
Positions
Cleveland Guardians
0X2
0x0x23…h8c9
Event PnL
+$41.75
Volume
$8,298.25
Positions
UnderCleveland Guardians
FE3
ferrariChampions2026
Event PnL
-$36.60
Volume
$8,180.62
Positions
OverTampa Bay Rays
HE4
heyboy800
Event PnL
-$33.85
Volume
$6,910.81
Positions
Cleveland GuardiansCleveland Guardians
655
6512395314597884
Event PnL
-$341.11
Volume
$5,830.63
Positions
Tampa Bay Rays
4C6
0x4c07…8184
Event PnL
-$26.02
Volume
$5,205.36
Positions
Tampa Bay Rays
NI7
nigiri99
Event PnL
+$238.20
Volume
$4,927.00
Positions
Cleveland GuardiansNo
AN8
AnonymousUsername
Event PnL
+$17.53
Volume
$3,506.12
Positions
Tampa Bay RaysTampa Bay RaysUnder

Frequently Asked Questions

What is the current market consensus on "Cleveland Guardians vs. Tampa Bay Rays"?

As of the latest update, NRFI leads the field as the frontrunner with a 44.5% win probability, followed by Extra Innings at 12%. Total trading volume for this pool has reached $135.7K, indicating deep liquidity and high trader engagement.

How does the AI Fair Value differ from the live Market Trade Value?

The live Market Trade Value reflects public sentiment, order-book momentum and speculative capital. Our AI Fair Value is computed independently with quantitative models that strip out hype to focus on underlying data. When the two diverge, it creates an EV Gap, flagging where the market may be mispricing an outcome.

Is the market consensus overreacting to any specific outcome?

Yes — our data suggests a notable overreaction around NRFI. The crowd has pushed its live Trade Value up to 44.5%, yet our Fair Value assessment puts its real likelihood at just 39.8%, a negative EV Gap of -4.7% that signals the contract is overpriced.

Get Started