Mongoose Bets vs Unabated: Sharp-Book Line vs Monte Carlo Sim
Unabated publishes the "Unabated Line" — a vig-free consensus derived from the sharpest market-making books (Pinnacle, Circa, and a weighted blend of others). Mongoose Bets runs 2,500 Monte Carlo simulations per MLB game from first principles. Both find +EV opportunities. They find different kinds of edges, for different kinds of bettors.
At a glance
| Criterion | Mongoose Bets | Unabated |
|---|---|---|
| Price | Free | $99/mo Props+ · $199/mo Premium (17% off annual) |
| Sports covered | MLB only | MLB + NFL + NBA + NHL + soccer + tennis + more |
| Edge approach | 2,500 Monte Carlo sims per game | Sharp-book-weighted vig-free consensus line |
| Line origination | Not derived from any book | Unabated Line (Pinnacle/Circa-weighted) |
| Line history charts | Not offered | Full historical movement per market |
| Alternate line & derivative calculators | Not offered | Yes (Premium tier) |
| Lineup-aware MLB sim | Yes, re-sims on confirmed lineups | Market-driven; no explicit lineup modeling |
| Per-umpire factors | Ingested per game | Inherited from market, not modeled |
| Probability distribution | Full 2,500-sim distribution per market | Point-estimate fair odds only |
| Money-back guarantee / trial | Free forever | 14-day money-back on monthly plans |
Who this comparison is for
You if you've heard bettors swear by the Unabated Line and you're trying to decide whether to pay $99-$199/month for access or use a free sim-based alternative. Short answer: for most MLB-only bettors, Mongoose covers the core value for free, but Unabated's market-based approach catches a category of edges a sim can't — especially on well-priced standard markets.
What the Unabated Line actually is
The Unabated Line is a vig-free consensus fair-odds line derived from multiple sharp market-makers — primarily Pinnacle and Circa, blended with additional sharp books weighted by which book is sharpest on which sport. Their data team explores and maintains these weights over time.
The logic is that sharp money at Pinnacle and Circa sets what is effectively the "market truth" for any given bet, and the vig-free version of that line represents the best available estimate of true probability. Any retail US sportsbook line that materially differs from the Unabated Line is, by that logic, either ahead of the market (rare) or offering +EV.
Unabated's two main tiers are Props+ ($99/month), focused on player props across major sports, and Premium ($199/month), which includes full market coverage, line history visualization, alternate-line derivative calculators, and in-game odds. Annual billing saves 17% on either tier.
Top-down vs bottom-up, again
Same epistemological split as any market-truth-based tool vs a simulation-based tool, with specifics.
Unabated (top-down)
The sharp market-makers have already absorbed every known signal — weather, lineups, injuries, umpires — into their line. Reading their vig-free consensus is functionally reading the best aggregate estimate that exists.
Strength: on any market where Pinnacle posts, nothing beats reading the line directly. Closing-line-value accuracy is structurally maximal.
Mongoose Bets (bottom-up)
Reconstructs each MLB game from component inputs — per-pitcher data, confirmed lineups, park factors, weather, umpire tendencies, bullpen state — via 2,500 Monte Carlo trials and publishes the full probability distribution.
Strength: generates edges on markets sharp books don't post or price thinly. Shows the distribution, not just the point estimate.
Honest limit: If your core strategy is beating closing-line value on standard markets (moneyline, total, runline, main props), Unabated is structurally the more accurate tool. Mongoose can't out-predict Pinnacle on markets where Pinnacle posts sharp. Where Mongoose contributes is on markets the sharp books don't touch — MLB-specific, thinly-priced, or derivatives where sharp consensus isn't available.
Pricing compared
Unabated Props+: $99/month, 17% off annual, 14-day money-back guarantee. Focused on player props with the Unabated Line applied to prop markets.
Unabated Premium: $199/month, 17% off annual, 14-day money-back. Full market coverage, line history charts, alt-line and derivative calculators, in-game odds.
Mongoose Bets: Free across every market and feature. No paid tier. Our free arbitrage calculator and no-vig calculator are available to anyone — no account required.
The decision math for MLB-only bettors: Unabated Props+ at $99/month needs to generate roughly $1,188/year of extra edge vs whatever a free tool captures for the subscription to pay for itself. That's often reasonable for bettors staking $500+/week. For smaller-bankroll bettors focused on MLB, the subscription math is harder — and Mongoose covers the core MLB use case for nothing.
Where Unabated genuinely wins
Five areas where the paid tool does what Mongoose can't:
Sharp-book-derived fair odds
The Unabated Line is the industry-standard reference for "what is this bet actually worth." No simulation can match a Pinnacle-weighted consensus on well-priced markets.
Multi-sport coverage
MLB, NFL, NBA, NHL, soccer, tennis, college football and basketball, golf. The Unabated Line applied across every major sport. Mongoose is MLB-only.
Line history and movement visualization
Historical line charts per market. Seeing how the Unabated Line moved over a game's betting cycle tells you what sharp money did. Mongoose doesn't chart line movement.
Alternate-line and derivative calculators
If you want the fair line at -0.5 runs instead of -1.5, or the fair line on a totals derivative, Premium has purpose-built calculators. Mongoose shows standard markets only.
Brand credibility in the sharp-bettor community
Unabated is run by Captain Jack (Jack Andrews), one of the public +EV bettor community's most recognized figures. That brand earns the benefit of the doubt with serious bettors in a way a newer tool like Mongoose has to earn.
Where Mongoose wins for MLB
For MLB specifically, a sim goes deeper than a market-truth tool on several axes:
- Lineup-aware re-simulation. When confirmed lineups post 1-2 hours before first pitch, the full sim re-runs. Market-based tools pick up lineup changes indirectly through Pinnacle's reaction — usually slower.
- Per-umpire strike-zone modeling. Each home-plate ump's K rate, BB rate, O/U lean, and accuracy percentile are baked into every simulated PA. Not something a market-truth tool surfaces explicitly.
- Markets Pinnacle doesn't post. NRFI, 1st-5-innings lines, alt-line player props, obscure derivatives — the sim produces edges with no sharp-book signal to read from. This is the single biggest category where Mongoose shines.
- Probability distributions, not point estimates. Every market shows the full 2,500-sim distribution — useful for bet sizing, parlay construction, and understanding variance.
- Correlated parlays with sim-derived joint probabilities. Same-game parlays where Mongoose calculates the actual joint probability from the sim rather than naively multiplying marginal fair-odds.
- Full methodology transparency. Every model input is public (see /methodology). Unabated is a closed-source product.
Bottom line
Pick Mongoose if
- You bet MLB primarily
- You focus on NRFI, alt lines, or player-prop derivatives Pinnacle doesn't post
- You want simulation-derived probability distributions and correlated-parlay math
- You want methodology transparency
- You don't want to pay $99+/month
Pick Unabated if
- You bet multiple sports
- Closing-line value on standard markets is your core strategy
- You want line-history charts and alternate-line calculators
- Bankroll size makes $99-$199/month comfortable
- You value the Pinnacle/Circa-weighted reference line directly
Used together: Unabated for multi-sport fair-odds baseline, Mongoose for MLB-specific sim edges on the markets Unabated's inputs don't cover. Different tools, different kinds of mispricing caught.
Common questions
What is the Unabated Line and how does it work?+
The Unabated Line is a vig-free consensus fair-odds line derived from sharp market-making sportsbooks (Pinnacle, Circa, and a handful of others), weighted toward whichever book is sharpest for a given market and sport. It's presented as market-truth reference odds that bettors compare retail US sportsbook lines against to find +EV opportunities.
How much does Unabated cost?+
Unabated Props+ is $99/month focused on player props across major sports. Unabated Premium is $199/month with full market coverage, alternate lines, in-game odds, and derivative calculators. Annual billing saves 17%. Both tiers include a 14-day money-back guarantee. Mongoose Bets is free — there is no paid tier.
Is Unabated more accurate than Mongoose Bets?+
For short-term closing-line value on standard markets, Unabated's sharp-book-weighted approach is structurally more accurate because it reads Pinnacle's line directly rather than reconstructing probabilities from a simulation. For niche markets where Pinnacle doesn't post — NRFI, obscure player props, alt lines — a sim can produce edges that a market-based tool can't detect because there's no sharp signal to derive from.
What's the difference between Unabated and OddsJam?+
Both are market-truth-based tools built on sharp-book-derived fair odds. OddsJam emphasizes arbitrage detection and alerts; Unabated emphasizes the fair line itself and line-history visualization. OddsJam is slightly pricier ($199-$399/mo vs Unabated's $99-$199/mo). For pure +EV on standard markets, they serve similar functions; OddsJam adds arbitrage and real-time alerts.
Should I use both Unabated and Mongoose Bets?+
Yes, many serious +EV bettors triangulate. Unabated for cross-sport coverage and sharp-book-derived fair odds on standard markets (moneylines, totals, main props). Mongoose for MLB-specific depth — confirmed-lineup re-sims, per-umpire modeling, NRFI, correlated parlay joint probabilities. The two approaches catch different edges: Unabated catches market mispricings on well-priced markets; Mongoose catches sim-only edges on thinly-priced ones.
Try Mongoose free
Today's MLB best bets →
Every sim-derived edge on tonight's slate, with probability distributions and vig-free fair odds shown on each.
Or read the math
Full methodology →
Every model input, calibration approach, and the tuning log.