A moneyline bet on the WTA Italian Open is the most straightforward wager available: pick the player who will win the match outright. Unlike sports with point spreads, tennis moneylines carry no handicap — the selected player simply needs to advance. This simplicity makes it the most popular market for the Rome tournament, but the odds can vary dramatically depending on the round and matchup. Early-round contests featuring top seeds against qualifiers often produce heavy favorites with moneyline prices north of -400, while quarterfinal and semifinal matchups between similarly ranked players tend to offer much tighter lines.
Bettors should pay close attention to surface form when evaluating WTA Italian Open moneylines. Clay-court specialists frequently outperform their rankings in Rome, creating value on underdogs whose red-clay pedigree gets underweighted by the market. Fatigue and scheduling also matter — players coming off deep runs in Madrid the week prior can fade in later rounds. Regarding vig, moneyline markets in WTA tennis typically carry slightly higher juice than game or set spreads, particularly in lopsided matchups where books widen margins on heavy favorites. Comparing hold percentages across sportsbooks becomes especially worthwhile in those early-round mismatches where vig discrepancies tend to be largest.
Cross-Sport moneyline Vig Comparison
WTA Italian Open moneyline averages 5.10% vig across 18 sportsbooks. Here's how that compares to other active sports:
| Sport | Avg Vig | vs WTA Italian Open |
|---|---|---|
| WTA Italian Open | 5.10% | — |
| CFL | 4.68% | 0.42% higher |
| NCAAF | 4.68% | 0.42% higher |
| NFL | 4.44% | 0.67% higher |
| NFL Preseason | 4.38% | 0.72% higher |
Vig Rankings
| # | Sportsbook | Vig | Grade | Events |
|---|---|---|---|---|
| 1 | Pinnacle | 2.47% | A | 1 |
| 2 | BetOnline.ag | 3.89% | B+ | 1 |
| 3 | LowVig.ag | 3.89% | B+ | 1 |
| 4 | BetMGM | 4.44% | B | 1 |
| 5 | FanDuel | 4.72% | B | 1 |
| 6 | DraftKings | 4.76% | B | 1 |
| 7 | theScore Bet (ESPN Bet) | 5.02% | C+ | 1 |
| 8 | Fanatics | 5.23% | C+ | 1 |
| 9 | Hard Rock Bet | 5.23% | C+ | 1 |
| 10 | BetAnything | 5.27% | C+ | 1 |
| 11 | 888sport | 5.45% | C+ | 1 |
| 12 | BetUS | 5.45% | C+ | 1 |
| 13 | BetRivers | 5.53% | C+ | 1 |
| 14 | betPARX | 5.53% | C+ | 1 |
| 15 | Bally Bet | 5.53% | C+ | 1 |
| 16 | ReBet | 6.03% | C | 1 |
| 17 | Caesars | 6.44% | C | 1 |
| 18 | Fliff | 6.99% | C | 1 |
Frequently Asked Questions
Which sportsbook has the lowest WTA Italian Open moneyline vig?
Pinnacle currently has the lowest vig at 2.47%, earning a grade of A.
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.