↑ 7-day trend: Average vig has worsened by 0.10 percentage points over the past week (from 6.75% to 6.85%). Odds margins are widening, meaning bettors are getting less value per wager.
The top 3 books are tightly clustered — only 0.32% separates them.
Minor League Baseball presents a distinct betting environment characterized by volatile scoring patterns and less predictable outcomes than the major leagues. Games often feature young, developing pitchers with inconsistent command alongside hitters adjusting to professional baseball, creating opportunities for dramatic swings in run production. The pace of play tends to be slower than MLB, with longer at-bats and more walks, which can significantly impact over/under totals. Market depth remains relatively shallow compared to major sports, with most books offering basic moneylines, run lines, and totals, though prop betting options are increasingly available for higher-level affiliates like Triple-A.
Vig margins on MiLB games typically run wider than their MLB counterparts, often ranging from -115 to -120 on standard two-way markets. This broader margin reflects the increased uncertainty and limited information flow that bookmakers face when setting lines for minor league contests. Books have less comprehensive data on player performance, injury status, and roster moves, leading them to build in extra protection through higher juice. However, savvy bettors can find value in this inefficiency, particularly when books rely heavily on basic statistical projections without accounting for recent call-ups, demotions, or organizational priorities.
The MiLB season runs from April through September, with the most competitive vig typically appearing during peak summer months when betting volume increases and books pay closer attention to line accuracy. Weather plays a crucial role in game outcomes, particularly for outdoor ballparks where wind conditions can dramatically affect offensive production. Home field advantages vary significantly across different levels and geographic regions, while pitcher matchups become especially important given the developmental nature of minor league arms and their tendency toward shorter outings.
MiLB Sportsbook Vig Rankings
| # | Sportsbook | Avg Vig | Grade | 24h | Moneyline | Spreads | Totals | Events |
|---|---|---|---|---|---|---|---|---|
| 1 | Caesars | 6.09% | C | ↑ 0.09% | 6.29% | 4.96% | 6.87% | 12 |
| 2 | theScore Bet (ESPN Bet) | 6.32% | C | ↓ 0.01% | 6.35% | 5.78% | 6.83% | 12 |
| 3 | BetOnline.ag | 6.41% | C | ↓ 0.10% | 6.50% | 6.21% | 6.53% | 11 |
| 4 | FanDuel | 6.69% | C | ↓ 0.02% | 5.79% | 7.13% | 7.14% | 12 |
| 5 | Bovada | 6.70% | C | ↓ 0.02% | 6.62% | 6.65% | 6.83% | 12 |
| 6 | BetRivers | 7.71% | D | ↑ 0.02% | 7.73% | 7.65% | 7.75% | 12 |
| 7 | Hard Rock Bet | 8.01% | D- | ↓ 0.03% | 6.64% | 8.35% | 9.03% | 5 |
Best Line Leaders
Which sportsbook offers the best odds most often across 12 events:
| # | Sportsbook | Best Lines |
|---|---|---|
| 1 | BetOnline.ag | 26 |
| 2 | FanDuel | 18 |
| 3 | theScore Bet (ESPN Bet) | 15 |
| 4 | Caesars | 9 |
| 5 | BetRivers | 4 |
| 6 | Bovada | 4 |
Frequently Asked Questions
Which sportsbook has the lowest vig for MiLB?
Caesars currently has the lowest average vig for MiLB at 6.09%, earning a grade of C.
How do sportsbook odds compare for MiLB?
We compare 7 sportsbooks for MiLB. The vig ranges from 6.09% (Caesars) to 8.01% (Hard Rock Bet).
When do small vig differences matter for MiLB?
The top two books (Caesars and theScore Bet (ESPN Bet)) are separated by just 0.23%. While small, this adds up over volume — a bettor placing $1,000/week saves roughly $2 per week by choosing the lower-vig book.
Why is MiLB vig so high?
Even the best book charges 6.09% vig for MiLB. Higher vig typically reflects thinner markets with less betting volume, wider spreads due to less reliable data, or fewer competing sportsbooks driving down prices.
What is vig (vigorish) in sports betting?
Vig — short for vigorish, also called juice or overround — is the margin a sportsbook builds into its odds. It's the difference between the true probability of an outcome and what the odds imply. Lower vig means you keep more of your winnings on every bet. For example, a standard -110/-110 line has about 4.76% vig.
How often is this data updated?
We pull fresh odds from The Odds API three times per day — at 6:00 AM, 2:00 PM, and 10:00 PM UTC. Each snapshot captures the latest lines from every sportsbook that has posted odds. The timestamp at the top of the page shows the most recent refresh.
How is the vig grade calculated?
Each sportsbook is graded on a letter scale based on average vig: A+ (under 2%) is exceptional, A (2–3%) is excellent, B+ (3–4%) is above average, B (4–5%) is the industry standard, C (5–6%) is below average, and D (above 6%) indicates high-juice markets.
Why does lower vig matter for bettors?
Lower vig directly impacts your long-term returns. A bettor placing $1,000 per week at a book with 4% vig loses roughly $40/week to the house edge. At 2% vig, that drops to $20/week — a $1,040 difference over a year. For serious bettors, shopping for lower vig is one of the most reliable ways to improve profitability.
What sportsbooks do you track?
We track both regulated US sportsbooks (DraftKings, FanDuel, BetMGM, Caesars) and offshore books (Bovada, BetOnline, MyBookie, BetUS, LowVig.ag, BetAnySports). Data comes from The Odds API, which aggregates real-time lines from licensed sources.
How We Calculate These Numbers
- Data Source
- All odds on this page come from The Odds API, which aggregates real-time lines from licensed US and offshore sportsbooks. We track moneyline, spread, and totals markets across every sport with active betting lines.
- Update Frequency
- We pull a fresh snapshot of every tracked market three times per day — at 6:00 AM, 2:00 PM, and 10:00 PM UTC. Each snapshot captures the latest lines from every sportsbook that has posted odds for a given event. The timestamp at the top of each page tells you exactly when the data was last refreshed.
- Vig Calculation
- Vig (short for vigorish, also called juice or overround) measures the margin a sportsbook builds into its odds. We calculate it by converting the odds on each side of a market to implied probabilities, summing those probabilities, and subtracting 100%. For example, a market priced at -110/-110 implies 52.38% on each side — a total of 104.76%, meaning a vig of 4.76%. Lower vig means better value for bettors because you keep more of your winnings.
- Per-Market Breakdown
- We compute vig separately for each market type: moneyline (h2h), point spreads, and totals (over/under). The "average vig" shown for each sportsbook is the mean across all market types weighted by the number of events sampled in each market.
- Grading Scale
- Every sportsbook receives a letter grade based on its average vig: A+ (under 2%) is exchange-level pricing. A (2–3%) is very competitive. B+ (3–4%) is above average. B (4–5%) is the industry standard — a -110/-110 line is 4.76%. C+ (5–6%) is slightly below average. C (6–7%) is below average. D (7–8%) is high vig. D− (8–10%) is very high vig. F (10%+) is predatory pricing. See the full Vig Index Methodology for formulas, worked examples, and known limitations.
- Trend Tracking
- We store daily snapshots for 30 days, allowing us to show 24-hour and 7-day vig trends. A downward trend (improving) means sportsbooks are tightening their lines — often in response to increased competition or higher betting volume as a season heats up.