All analysesVerdict: Better Off Passing. Rating 39 out of 100. Grade F.
Ai
AiOddsLab
FanDuel
39/ 100
Better Off PassingF
Price or risk doesn't justify it
4 leg parlay
Not enough confirmed value to recommend — skip unless this is a tiny entertainment play.
Your odds
+25924
Fair odds
+26510
Edge
—
Settle the debate
One brand · 3 sizes
Save as image
Send link
Ai
AiOddsLab
Overpriced conf.
FanDuel
39/ 100
Better Off PassingF
4 leg parlay
Not enough confirmed value to recommend — skip unless this is a tiny entertainment play.
Win probability — your price vs fair
-2.2% edge
Your odds imply0.4%
Fair line implies0.4%
$100 → your payout
$26,024
$100 → fair payout
$26,610
You give up
−$586
Your odds
+25924
Fair odds
+26510
Edge
-2.2%
Grade FConfidence Overpriced
Graded vs the book's own price. Fair value devigged from FanDuel's line — treat the edge as an estimate.
AiOddsLab.comSettle the debate · free
AI breakdown
Verdict: This four-leg home run parlay is slightly unfavorable, offering negative expected value.
Value: The boosted odds of +25924 present a -2.20% edge against the devigged fair odds of +26510.
Market context: The boost falls short of the calculated fair odds, indicating no inherent value from the sportsbook.
Status: the matchup is no notable injury signal for any listed player.
Social: the matchup data is available on Reddit for social sentiment.
Risk: This is a four-leg parlay of specific player props, carrying significant multi-leg parlay variance.
Smart insight: The outcome of any single player's home run potential significantly impacts the bet's overall expected value.
Similar profile: This is a multi-leg parlay of specific player home run props, which typically resolves as a significant longshot, especially at these odds.
Counter-case: The negative expected value and high number of legs represent a strong reason to fade this boost.
Live context: the matchup lineups near tip-off.
Recommendation: Pass
How this bet was graded
Grade F · 39/100 · Better Off Passing
We graded 4 leg parlay at +25924 on FanDuel — a 4-leg ticket by comparing the offered price to a vig-free consensus of the wider market. The ticket centers on Kazuma Okamoto, Cal Raleigh, Jackson Chourio and others. The bet earned a F grade (39/100), which we label "Better Off Passing".
The headline number is edge versus fair: -2.20%. That figure is the long-run expected return per dollar staked, assuming the market consensus is an unbiased estimate of true probability. At odds this long, even a strongly positive edge cashes infrequently — single-bet variance dominates short samples. Because we couldn't fully match this market across other books, fair value here was derived from the host book's own posted line — treat the edge as directional rather than precise.
Fair odds calculation
Fair +26510 · Implied 0.4%
Fair odds represent the price you'd see in a perfectly efficient, zero-margin market. To compute them we pull current prices from the available sportsbooks on the same market, strip out each book's vig, and average the resulting no-vig probabilities. The averaged probability for this outcome lands at 0.4%, which converts to fair odds of +26510.
Compared to the offered price of +25924 (a +0.0% move from the original line), that produces an edge of -2.20%. In plain English: if the market is right about the true probability, you'd expect to lose about 2.2 cents on every dollar staked, on average, across many bets of this exact shape.
Historical context
Longshots (+1500 and up) · MLB · parlay
Across AiOddsLab's database, we've scored 337 graded MLB bets, 13.0% hit rate on settled tickets, average edge of +324.89%, average rating 47/100. That sample gives a baseline expectation for what a "fair" hit rate looks like in this sport — use it to sanity-check your own bankroll math.
Narrowing to the same market type, 179 graded parlay tickets, 0.0% hit rate on settled tickets, average edge of +579.93%, average rating 48/100. This is the closest apples-to-apples reference for the bet you're looking at.
Filtering by odds range alone (longshots (+1500 and up)), 146 graded tickets, 0.0% hit rate on settled tickets, average edge of +29.11%, average rating 45/100.
In the trailing 90 days, 337 graded MLB bets, 13.0% hit rate on settled tickets, average edge of +324.89%, average rating 47/100. Compare that to the all-time baseline above to see whether grading and outcomes have drifted recently.
Stats update as new tickets are analyzed and graded. Sample sizes below 5 are suppressed.
Why the market disagrees
The wider market is pricing this outcome tighter than FanDuel's line suggests is reasonable. With an edge of -2.2%, you're paying a premium versus the consensus fair price of +26510. The bet can still win — odds are not destiny — but the price embeds a built-in disadvantage that compounds across repeated wagers. Shopping the same market at a sharper book, or waiting for the line to move, is usually the correct response.
Frequently asked questions
What does a -2.2% edge mean?
Edge measures the gap between the price you're getting (+25924) and the fair price implied by the broader market (+26510). A negative edge of -2.2% means the price is worse than fair value. You can still win the bet, but the long-run math is against you.
Does a positive edge mean the bet is likely to win?
No. Edge and win probability are different things. The market still implies roughly a 0.4% chance this hits at the offered odds. A +EV bet is one that pays more than its true probability warrants — most +EV bets at long odds still lose individually. The edge only shows up across many similar wagers.
How are fair odds calculated?
Fair odds are derived by taking sportsbook prices on the same market, removing the bookmaker's vig (the built-in margin), and averaging the resulting no-vig probabilities. For this bet we used the available market price to estimate a true win probability of 0.4%, which converts to fair odds of +26510. The offered price of +25924 is then compared against that fair line to compute edge.
Why does this grade differ from the sportsbook's advertised lift?
Sportsbooks usually advertise the percentage lift over their own original price, which they set with house margin built in. Our grade compares the offered price to a vig-free market consensus, so a "+50%" advertised lift can still grade poorly if the original line was already inflated, and a small lift can grade well if it pushes a fair price into +EV territory.
Should I bet every bet that grades well?
Grading is a price-quality signal, not a guarantee. Even an F-grade bet can lose, and you should size stakes within your bankroll, account for correlation between legs, and consider your own information about the matchup. This tool helps you avoid bad prices — it doesn't replace judgment or responsible bankroll management.