Vig Breakdown
Average
C · #5 of 7
Moneyline
Spreads
Totals
Bally Bet maintains competitive positioning in ATP Monte-Carlo Masters markets, typically offering odds within 2-3% of market leaders for main draw matches. The sportsbook tends to excel in early round matchups where recreational bettors drive most of the action, often providing slightly better value on underdogs compared to sharp books that cater to professional players. Their futures markets for tournament winners usually carry higher juice than top-tier competitors, but first-round and second-round match betting frequently presents solid opportunities.
Recreational tennis bettors benefit most from Bally Bet's Monte-Carlo Masters lines, particularly those wagering on popular players like Djokovic or Nadal where the book's risk management creates favorable spots on the opposing side. The platform's strength lies in standard match betting rather than extensive prop markets, which remain limited compared to specialized tennis books. Bettors seeking maximum line shopping value should note that Bally Bet's clay court adjustments often lag behind books with deeper tennis expertise, creating potential edges for informed players who understand surface-specific trends.
Upcoming ATP Monte-Carlo Masters Events
| Matchup | Moneyline | Time |
|---|---|---|
| Alejandro Tabilo @ Marton Fucsovics | -190 / +150 | Apr 5, 8:00 AM |
| Nuno Borges @ Andrey Rublev | -200 / +160 | Apr 5, 8:00 AM |
| Karen Khachanov @ Arthur Rinderknech | +200 / -265 | Apr 5, 8:00 AM |
| Miomir Kecmanovic @ Cameron Norrie | -175 / +135 | Apr 5, 8:00 AM |
| Tomas Machac @ Daniel Altmaier | +112 / -139 | Apr 5, 8:00 AM |
Frequently Asked Questions
How does Bally Bet rank for ATP Monte-Carlo Masters?
Bally Bet has 6.23% average vig for ATP Monte-Carlo Masters, earning a grade of C. They rank #5 of 7 sportsbooks we track for this sport.
What is the Monte Carlo Masters?
The Monte-Carlo Masters is an ATP Masters 1000 clay-court tennis tournament held annually in April in Roquebrune-Cap-Martin, France. It is one of the most prestigious clay-court events and traditionally marks the start of the European clay season leading into Roland Garros.
How does clay-court tennis affect betting odds?
Clay-court specialists can significantly outperform their rankings on slow surfaces, which creates pricing inefficiencies. Sportsbooks may undervalue clay-court experts and overvalue hard-court players transitioning to clay. This surface transition period often produces the best value for informed bettors.
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.