MMA stands apart from most sports betting markets due to the sheer volatility of outcomes. A single punch, kick, or submission can end a fight in seconds, making moneyline betting the dominant market rather than point spreads. This binary finish-or-decision dynamic creates unique opportunities for bettors who can accurately assess how a fight will play out stylistically. Method of victory and round props add market depth, but liquidity tends to concentrate heavily on the moneyline and over/under rounds. Unlike team sports with large sample sizes, MMA fighters compete only two or three times per year, which limits historical data and forces oddsmakers to rely more heavily on qualitative analysis — an edge for sharp bettors who study tape and training camp reports closely.
Vig in MMA markets tends to run wider than in mature sports like NFL or NBA, particularly on undercards and regional promotions where books have less confidence in their lines. Main event and title fight moneylines at major sportsbooks typically carry margins in the 4-6% range, but that number can balloon to 8% or higher on preliminary card bouts or less prominent organizations like PFL or Bellator. This makes comparing vig across books especially valuable in MMA, where the difference between a -150 and a -160 favorite on the same fighter represents real money over time.
The UFC operates nearly year-round, with events most Saturdays, but the sharpest lines and tightest margins tend to appear around major numbered pay-per-view cards (UFC 290, 300, etc.) where public interest and betting volume are highest. Fight week cancellations due to injury, failed weight cuts, or last-minute opponent changes are more common in MMA than almost any other sport, and these disruptions can move lines dramatically. Stylistic matchups — a wrestler facing a striker, a grappler against a counter-puncher — are the single most important factor in handicapping fights, far outweighing venue or location effects, which play a minimal role compared to team sports.
↑ 7-day trend: MMA average vig has worsened by 0.24 percentage points over the past week (from 5.00% to 5.24%). Odds margins are widening, meaning bettors are getting less value per wager.
Cross-Sport Vig Comparison
MMA averages 5.24% vig across 14 sportsbooks. Here's how that compares to other active sports:
| Sport | Avg Vig | vs MMA |
|---|---|---|
| MMA | 5.24% | — |
| CFL | 5.00% | 0.24% higher |
| NCAAF | 4.71% | 0.53% higher |
| NFL | 4.72% | 0.52% higher |
| NFL Preseason | 4.40% | 0.84% higher |
Vig Rankings
| # | Sportsbook | Avg Vig | Grade | ML | Spreads | Totals | Events |
|---|---|---|---|---|---|---|---|
| 1 | BetOnline.ag | 3.77% | B+ | 3.74% | — | 3.84% | 38 |
| 2 | Pinnacle | 3.91% | B+ | 3.87% | — | 4.66% | 16 |
| 3 | BetUS | 3.96% | B+ | 3.96% | — | — | 2 |
| 4 | Caesars | 4.94% | B | 4.94% | — | — | 16 |
| 5 | Bovada | 4.99% | B | 3.99% | 6.24% | 6.67% | 13 |
| 6 | Hard Rock Bet | 5.01% | C+ | 5.01% | — | — | 15 |
| 7 | DraftKings | 5.12% | C+ | 4.24% | 7.01% | 6.18% | 17 |
| 8 | betPARX | 5.22% | C+ | 5.22% | — | — | 15 |
| 9 | Bally Bet | 5.22% | C+ | 5.22% | — | — | 15 |
| 10 | BetAnything | 5.59% | C+ | 5.59% | — | — | 13 |
| 11 | 888sport | 5.61% | C+ | 5.61% | — | — | 11 |
| 12 | FanDuel | 6.03% | C | 6.03% | — | — | 17 |
| 13 | BetMGM | 6.20% | C | 6.20% | — | — | 12 |
| 14 | BetRivers | 7.79% | D | 7.79% | — | — | 8 |
Frequently Asked Questions
Which sportsbook has the lowest MMA vig?
BetOnline.ag currently has the lowest vig at 3.77%, earning a grade of B+.
Why does MMA have higher vig than team sports?
MMA is an individual sport with unpredictable outcomes — one punch can end a fight. Sportsbooks compensate for this uncertainty with wider margins. Additionally, MMA events happen weekly rather than daily, so there's less consistent volume to drive competition.
When are MMA odds available?
UFC events run nearly year-round, with numbered PPV events roughly monthly and Fight Night cards filling the gaps. Lines typically open 1–2 weeks before each event. There's no traditional off-season, though the schedule is lighter in December.
Which sportsbooks offer the best MMA odds?
Pinnacle and BetOnline are generally the sharpest for MMA due to higher limits and tighter pricing. Recreational books like BetUS and MyBookie tend to have higher vig on UFC fights. However, MMA vig across all books is typically higher than team sports.
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.