Pinnacle leads with 2.75% vig (A), followed by BetMGM at 3.33%. The spread between #1 and #17 is 5.60% — book choice matters significantly for ATP Italian Open.
The ATP Italian Open, held annually at the Foro Italico in Rome, occupies a critical position on the tennis calendar as one of the premier clay-court Masters 1000 events and the final major tune-up before Roland Garros. For bettors, this creates a uniquely rich market. The tournament's best-of-three-set format through the early rounds increases volatility compared to Grand Slam best-of-five, while the 56-player draw and qualifying rounds offer extensive market depth across match winners, set betting, game totals, and in-play propositions. Clay-court tennis tends to produce longer rallies and more predictable patterns favoring baseline specialists, which can create exploitable edges for bettors who understand surface-specific performance data.
Vig on ATP Italian Open markets varies meaningfully depending on the round and the profile of the match. Marquee early-round matches featuring top seeds like Sinner or Djokovic typically carry tighter margins — often in the 3-5% range on match-winner markets — as sportsbooks compete aggressively for handle on high-visibility contests. However, qualifying rounds and first-round matches between lower-ranked players frequently see wider margins, sometimes exceeding 6-8%, as books price in additional uncertainty and attract less sharp action. Comparing lines across multiple sportsbooks becomes especially valuable in these thinner markets where discrepancies are more common.
The tournament typically runs in mid-May, and odds tend to be most competitive in the days immediately before and during the event, when books have the most recent clay-court form data from Madrid and other spring tournaments. Key factors that move Italian Open lines include recent clay-court results, fatigue from the compressed spring schedule, and Rome's outdoor conditions — afternoon heat and occasional rain delays can disrupt rhythm and disproportionately affect players with fitness concerns. The home-crowd dynamic also matters: Italian players like Jannik Sinner and Lorenzo Musetti consistently outperform their rankings in Rome, and sharp bettors account for this when evaluating opening prices.
ATP Italian Open Sportsbook Vig Rankings
| # | Sportsbook | Avg Vig | Grade | Moneyline | Spreads | Totals | Events |
|---|---|---|---|---|---|---|---|
| 1 | Pinnacle | 2.75% | A | 2.35% | 2.91% | 2.99% | 1 |
| 2 | BetMGM | 3.33% | B+ | 3.33% | — | — | 1 |
| 3 | Hard Rock Bet | 3.33% | B+ | 3.33% | — | — | 1 |
| 4 | BetOnline.ag | 4.06% | B | 4.03% | 4.38% | 3.79% | 1 |
| 5 | LowVig.ag | 4.06% | B | 4.03% | 4.38% | 3.79% | 1 |
| 6 | FanDuel | 4.51% | B | 4.51% | — | — | 1 |
| 7 | Fanatics | 4.74% | B | 4.74% | — | — | 1 |
| 8 | DraftKings | 4.75% | B | 4.75% | — | — | 1 |
| 9 | Bally Bet | 4.79% | B | 3.41% | 5.42% | 5.54% | 1 |
| 10 | betPARX | 4.79% | B | 3.41% | 5.42% | 5.54% | 1 |
| 11 | BetRivers | 4.91% | B | 3.41% | 5.78% | 5.54% | 1 |
| 12 | theScore Bet (ESPN Bet) | 5.56% | C+ | 5.56% | — | — | 1 |
| 13 | 888sport | 5.67% | C+ | 5.67% | — | — | 1 |
| 14 | BetUS | 6.30% | C | 5.68% | — | 6.93% | 1 |
| 15 | Fliff | 6.60% | C | 6.60% | — | — | 1 |
| 16 | Caesars | 8.10% | D- | 7.07% | 8.33% | 8.90% | 1 |
| 17 | ReBet | 8.35% | D- | 6.35% | 10.63% | 8.06% | 1 |
Best Line Leaders
Which sportsbook offers the best odds most often across 1 events:
| # | Sportsbook | Best Lines |
|---|---|---|
| 1 | Pinnacle | 3 |
| 2 | BetOnline.ag | 3 |
| 3 | BetRivers | 2 |
| 4 | FanDuel | 1 |
| 5 | ReBet | 1 |
Frequently Asked Questions
Which sportsbook has the lowest vig for ATP Italian Open?
Pinnacle currently has the lowest average vig for ATP Italian Open at 2.75%, earning a grade of A.
How do sportsbook odds compare for ATP Italian Open?
We compare 17 sportsbooks for ATP Italian Open. The vig ranges from 2.75% (Pinnacle) to 8.35% (ReBet).
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.