Pinnacle leads with 2.79% vig (A), followed by BetMGM at 3.66%. The spread between #1 and #17 is 4.85% — book choice matters significantly for ATP Madrid Open.
The ATP Madrid Open occupies a distinctive position in the tennis betting calendar as one of the premier clay-court Masters 1000 events, yet it plays unlike any other clay tournament. Staged at an altitude of roughly 650 meters, Madrid's thinner air produces faster ball speed, higher bounces, and more aces than bettors typically expect on clay. This means serve-dominant players who might struggle at Roland Garros or Rome can outperform their clay-court form lines in Madrid, creating pricing inefficiencies that sharp bettors look to exploit. Market depth is strong for main draw matches, with most major sportsbooks offering match winner, set betting, game handicaps, and a full suite of game and set totals. Qualifying rounds and early first-round matches tend to carry thinner liquidity and wider margins.
Vig on ATP Madrid Open matches generally follows the pattern seen across Masters 1000 events — tighter than lower-tier ATP 250s but slightly wider than Grand Slam pricing. For marquee matches featuring top-10 players, margins can compress to the 3–5% range as books compete aggressively for volume. However, later-round matchups between lesser-known qualifiers or journeymen often see vig climb above 6–7%, where shopping across multiple books becomes especially valuable. Live betting margins also tend to widen during volatile matches, particularly in sets that go deep on serve.
Seasonal context matters significantly. Madrid falls in late April or early May, right in the heart of the European clay swing, and players arrive with varying degrees of match fitness on the surface. Some come in sharp from Monte Carlo and Barcelona, while others are transitioning from hard courts and still finding their footing. The altitude factor also interacts unpredictably with weather — warm, dry conditions amplify the speed of the court, while cooler, humid days slow things down and favor grinders. Bettors should pay close attention to scheduling density, as fatigue from back-to-back clay events often catches up with players by the quarterfinal stage, and withdrawal or retirement risk is a real consideration when evaluating futures and outright markets.
ATP Madrid Open Sportsbook Vig Rankings
| # | Sportsbook | Avg Vig | Grade | Moneyline | Spreads | Totals | Events |
|---|---|---|---|---|---|---|---|
| 1 | Pinnacle | 2.79% | A | 2.40% | 2.83% | 3.14% | 1 |
| 2 | BetMGM | 3.66% | B+ | 3.66% | — | — | 1 |
| 3 | LowVig.ag | 3.92% | B+ | 4.00% | 3.63% | 4.14% | 1 |
| 4 | BetOnline.ag | 3.92% | B+ | 4.00% | 3.63% | 4.14% | 1 |
| 5 | FanDuel | 4.23% | B | 4.23% | — | — | 1 |
| 6 | Fanatics | 4.62% | B | 4.62% | — | — | 1 |
| 7 | DraftKings | 4.76% | B | 4.76% | — | — | 1 |
| 8 | 888sport | 5.69% | C+ | 5.69% | — | — | 1 |
| 9 | Hard Rock Bet | 5.71% | C+ | 5.71% | — | — | 1 |
| 10 | theScore Bet (ESPN Bet) | 5.71% | C+ | 5.71% | — | — | 1 |
| 11 | BetRivers | 5.77% | C+ | 5.51% | 5.88% | 5.92% | 1 |
| 12 | betPARX | 5.92% | C+ | 5.51% | 6.35% | 5.92% | 1 |
| 13 | Bally Bet | 5.92% | C+ | 5.51% | 6.35% | 5.92% | 1 |
| 14 | BetUS | 6.54% | C | 5.71% | 6.93% | 6.98% | 1 |
| 15 | Fliff | 6.71% | C | 6.71% | — | — | 1 |
| 16 | BetAnything | 6.88% | C | — | 6.78% | 6.98% | 1 |
| 17 | Caesars | 7.64% | D | 6.55% | 8.05% | 8.33% | 1 |
Best Line Leaders
Which sportsbook offers the best odds most often across 1 events:
| # | Sportsbook | Best Lines |
|---|---|---|
| 1 | Pinnacle | 5 |
| 2 | BetRivers | 3 |
| 3 | LowVig.ag | 3 |
| 4 | FanDuel | 1 |
Frequently Asked Questions
Which sportsbook has the lowest vig for ATP Madrid Open?
Pinnacle currently has the lowest average vig for ATP Madrid Open at 2.79%, earning a grade of A.
How do sportsbook odds compare for ATP Madrid Open?
We compare 17 sportsbooks for ATP Madrid Open. The vig ranges from 2.79% (Pinnacle) to 7.64% (Caesars).
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.