Serie B, Italy's second division, presents a distinctive betting landscape shaped by its competitive unpredictability and relatively lower market visibility compared to Serie A. The league features 20 teams playing 38 matchdays, with promotion playoffs and relegation adding high-stakes drama throughout the season. Scoring tends to be modest — many matches finish 1-0 or 0-0 — reflecting the tactical, defense-first approach that permeates Italian football at every level. Draw percentages run notably higher than in top-flight leagues, which creates value opportunities for bettors willing to study form and context rather than relying on name recognition. Market depth is thinner than Serie A, with fewer prop and player-level markets available, but moneyline, Asian handicap, and over/under totals are widely offered across major sportsbooks.
Vig on Serie B markets tends to run wider than on Serie A or other top European leagues, typically ranging from 5% to 8% on match result markets, though this varies considerably by sportsbook and fixture profile. High-profile matches — such as derbies, promotion clashes, or games involving recently relegated clubs — attract sharper lines and tighter margins as books compete for volume. Midweek fixtures and matches between lower-table sides often carry the widest margins, as bookmakers compensate for lower liquidity and greater modeling uncertainty. Comparing vig across books becomes especially important in this tier, where the difference between a 4.5% and 7.5% hold can meaningfully erode long-term returns.
The Serie B season runs from mid-August through mid-May, with promotion playoffs extending into early June. Odds tend to be most competitive during the opening weeks when bookmaker interest is highest, and again in the final stretch when promotion and relegation battles intensify media and betting volume. Key factors influencing odds include home/away splits — home advantage remains significant in Serie B, where smaller stadiums and passionate local support create genuinely hostile environments — along with squad depth, midseason transfer window activity in January, and managerial changes, which occur frequently in the division. Weather also plays a role, particularly for northern clubs during winter months, when heavy pitch conditions tend to suppress scoring and favor defensive sides.
Analysis updated October 11, 2026. Odds data above refreshes hourly.
↑ 7-day trend: Serie B - Italy average vig has worsened by 0.28 percentage points over the past week (from 7.17% to 7.45%). Odds margins are widening, meaning bettors are getting less value per wager.
Cross-Sport Vig Comparison
Serie B - Italy averages 7.45% vig across 13 sportsbooks. Here's how that compares to other active sports:
| Sport | Avg Vig | vs Serie B - Italy |
|---|---|---|
| Serie B - Italy | 7.45% | — |
| Primera División - Argentina | 6.46% | Serie B - Italy runs 0.99 pts higher |
| A-League | 6.60% | Serie B - Italy runs 0.85 pts higher |
| Austrian Football Bundesliga | 7.75% | Serie B - Italy runs 0.30 pts lower |
| Belgium First Div | 7.10% | Serie B - Italy runs 0.35 pts higher |
Vig Rankings
| # | Sportsbook | Avg Vig | Grade | ML | Spreads | Totals | Events |
|---|---|---|---|---|---|---|---|
| 1 | Pinnacle | 4.19% | B | 4.91% | 3.62% | 4.03% | 10 |
| 2 | Bovada | 5.36% | C+ | 7.03% | 4.56% | 4.49% | 9 |
| 3 | Fanatics | 6.07% | C | 6.07% | — | — | 10 |
| 4 | BetUS | 6.99% | C | 7.54% | 6.72% | 6.55% | 10 |
| 5 | FanDuel | 7.05% | D | 7.05% | — | — | 10 |
| 6 | DraftKings | 7.09% | D | 7.09% | — | — | 10 |
| 7 | BetOnline.ag | 7.49% | D | 8.08% | 6.76% | 7.48% | 10 |
| 8 | LowVig.ag | 7.49% | D | 8.08% | 6.76% | 7.48% | 10 |
| 9 | betPARX | 8.02% | D- | 7.18% | — | 8.87% | 10 |
| 10 | BetMGM | 8.06% | D- | 7.32% | — | 8.80% | 10 |
| 11 | 888sport | 9.33% | D- | 9.33% | — | — | 10 |
| 12 | theScore Bet (ESPN Bet) | 9.42% | D- | 9.42% | — | — | 10 |
| 13 | BetRivers | 10.30% | F | 11.14% | — | 9.46% | 10 |
Frequently Asked Questions
Which sportsbook has the lowest Serie B - Italy vig?
Pinnacle currently has the lowest vig at 4.19%, earning a grade of B.
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 every hour, on the hour (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 average vig: A+ (under 2%) is exchange-level pricing, A (2–3%) very competitive, B+ (3–4%) above average, B (4–5%) the industry standard, C+ (5–6%) slightly below average, C (6–7%) below average, D (7–8%) high vig, D− (8–10%) very high, F (10%+) predatory.
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, BetAnything). 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 every hour, on the hour (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.