↓ 7-day trend: Average vig has improved by 0.16 percentage points over the past week (from 6.26% to 6.10%). Sportsbooks are tightening their lines — a good sign for bettors.
Pinnacle leads with 3.52% vig (B+), followed by LowVig.ag at 3.97%. The spread between #1 and #18 is 4.82% — book choice matters significantly for NPB. Vig is trending down 0.15% since yesterday.
Nippon Professional Baseball offers a distinct betting landscape compared to its MLB counterpart. NPB games tend to be lower-scoring affairs, with tighter pitching, more frequent sacrifice bunts, and a strategic emphasis on manufacturing runs rather than relying on power. The smaller ballparks might suggest higher scoring, but the universal use of a slightly smaller strike zone ball and disciplined pitching staffs keep totals compressed. For bettors, this means run line and totals markets behave differently than in American baseball — one-run games are extremely common, and unders hit at a notably higher rate. Market depth is thinner than MLB, with fewer props and limited live betting options at most books, which concentrates action on moneylines, run lines, and game totals.
Vig on NPB markets tends to run wider than on MLB, largely because of lower betting volume and the informational asymmetry between sharp bettors and the books. Most Western sportsbooks price NPB as a secondary market, meaning less competition drives up margins. Books that specialize in Asian markets — or those with dedicated baseball trading desks — generally offer tighter lines. Comparing margins across books becomes especially valuable here because the spread between the sharpest and softest prices on a single NPB game can be significantly larger than bettors accustomed to major North American sports might expect.
The NPB regular season runs from late March through October, with the Climax Series (playoffs) extending into November. Early-season lines tend to be softer as books and bettors alike adjust to roster changes, new foreign player signings, and pitching rotation shakeups. Midseason — particularly June through August — typically produces the most efficient markets as sample sizes grow. Key factors shaping NPB odds include starting pitcher matchups, which dominate line movement even more than in MLB, along with Japan's extreme summer humidity, which affects pitcher stamina and ball flight. Home/away splits are pronounced in NPB; certain parks like Jingu Stadium and Mazda Zoom-Zoom Stadium play dramatically differently, and teams with dome stadiums hold a measurable weather-neutral advantage during the rainy season.
NPB Sportsbook Vig Rankings
| # | Sportsbook | Avg Vig | Grade | 24h | Moneyline | Spreads | Totals | Events |
|---|---|---|---|---|---|---|---|---|
| 1 | Pinnacle | 3.52% | B+ | ↑ 0.03% | 3.07% | 3.58% | 3.92% | 5 |
| 2 | LowVig.ag | 3.97% | B+ | ↓ 0.06% | 3.83% | 3.56% | 4.53% | 5 |
| 3 | BetOnline.ag | 3.97% | B+ | ↓ 0.06% | 3.83% | 3.56% | 4.53% | 5 |
| 4 | DraftKings | 5.01% | C+ | ↓ 0.17% | 4.92% | 4.82% | 5.28% | 5 |
| 5 | MyBookie.ag | 5.32% | C+ | ↓ 0.66% | 6.01% | 5.02% | 4.93% | 5 |
| 6 | FanDuel | 5.39% | C+ | ↑ 0.02% | 5.00% | 5.58% | 5.59% | 5 |
| 7 | Fanatics | 5.69% | C+ | ↑ 0.10% | 4.02% | 6.38% | 6.66% | 5 |
| 8 | BetUS | 5.70% | C+ | ↓ 0.05% | 5.69% | 4.90% | 6.50% | 5 |
| 9 | BetMGM | 6.29% | C | — | 6.16% | 6.44% | 6.27% | 5 |
| 10 | Caesars | 6.50% | C | ↓ 0.01% | 6.33% | 6.65% | 6.52% | 5 |
| 11 | Bovada | 6.59% | C | ↑ 0.02% | 6.44% | 6.55% | 6.80% | 5 |
| 12 | Hard Rock Bet | 6.66% | C | ↑ 0.12% | 6.56% | 6.74% | 6.66% | 5 |
| 13 | theScore Bet (ESPN Bet) | 6.85% | C | ↑ 0.06% | 6.71% | 7.19% | 6.66% | 5 |
| 14 | Bally Bet | 7.22% | D | ↑ 0.02% | 6.25% | 7.77% | 7.63% | 5 |
| 15 | BetRivers | 7.22% | D | ↑ 0.02% | 6.25% | 7.77% | 7.63% | 5 |
| 16 | Fliff | 7.71% | D | ↓ 0.29% | 7.74% | 7.94% | 7.45% | 1 |
| 17 | 888sport | 7.81% | D | ↑ 0.03% | 7.75% | 7.67% | 8.03% | 5 |
| 18 | ReBet | 8.34% | D- | ↓ 1.59% | 9.05% | 7.95% | 8.01% | 5 |
Best Line Leaders
Which sportsbook offers the best odds most often across 5 events:
| # | Sportsbook | Best Lines |
|---|---|---|
| 1 | Pinnacle | 15 |
| 2 | LowVig.ag | 8 |
| 3 | BetRivers | 7 |
| 4 | Caesars | 4 |
| 5 | DraftKings | 4 |
| 6 | Bally Bet | 3 |
| 7 | MyBookie.ag | 2 |
| 8 | 888sport | 1 |
| 9 | FanDuel | 1 |
| 10 | Fliff | 1 |
| 11 | Fanatics | 1 |
| 12 | BetMGM | 1 |
Frequently Asked Questions
Which sportsbook has the lowest vig for NPB?
Pinnacle currently has the lowest average vig for NPB at 3.52%, earning a grade of B+.
How do sportsbook odds compare for NPB?
We compare 18 sportsbooks for NPB. The vig ranges from 3.52% (Pinnacle) to 8.34% (ReBet).
Is NPB vig getting better or worse?
NPB vig is currently improving (decreasing). Average vig has shifted by 0.15 percentage points since yesterday. We track these changes daily to help bettors identify the best windows for placing wagers.
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.