A moneyline bet on the WTA French Open is the most straightforward wager available: pick the player who will win the match outright, with no point or game spread involved. Because tennis is a head-to-head sport with no draws, moneyline pricing is binary — one favorite, one underdog — and the odds reflect each player's implied probability of advancing. Unlike spread betting in team sports, there's no margin of victory to consider, making moneyline the default market for most tennis bettors.
The moneyline market offers the most value in the early rounds of Roland Garros, where surface-specialist underdogs can catch inflated prices against higher-ranked players uncomfortable on clay. Bettors should closely monitor recent clay-court form, head-to-head records on slow surfaces, and physical condition — the WTA tour's grueling schedule often produces fatigue-related upsets deep in the draw. Regarding vig, WTA moneyline margins tend to run slightly wider than ATP equivalents due to lower betting volume and perceived unpredictability. Comparing vig across books is particularly worthwhile here, as the spread between the sharpest and softest lines on WTA matches can be significant, especially in earlier rounds where bookmakers dedicate fewer resources to precise pricing.
Cross-Sport moneyline Vig Comparison
WTA French Open moneyline averages 5.43% vig across 14 sportsbooks. Here's how that compares to other active sports:
| Sport | Avg Vig | vs WTA French Open |
|---|---|---|
| WTA French Open | 5.43% | — |
| CFL | 5.19% | 0.24% higher |
| NCAAF | 4.56% | 0.87% higher |
| NFL | 4.40% | 1.03% higher |
| NFL Preseason | 4.59% | 0.84% higher |
Vig Rankings
| # | Sportsbook | Vig | Grade | Events |
|---|---|---|---|---|
| 1 | Pinnacle | 2.69% | A | 1 |
| 2 | DraftKings | 4.23% | B | 1 |
| 3 | betPARX | 4.23% | B | 1 |
| 4 | Bovada | 4.25% | B | 1 |
| 5 | Hard Rock Bet | 4.44% | B | 1 |
| 6 | MyBookie.ag | 4.86% | B | 1 |
| 7 | FanDuel | 5.02% | C+ | 1 |
| 8 | theScore Bet (ESPN Bet) | 5.52% | C+ | 1 |
| 9 | Fanatics | 5.84% | C+ | 1 |
| 10 | Bally Bet | 6.05% | C | 1 |
| 11 | BetMGM | 6.59% | C | 1 |
| 12 | 888sport | 6.67% | C | 1 |
| 13 | Caesars | 6.82% | C | 1 |
| 14 | Fliff | 8.83% | D- | 1 |
Frequently Asked Questions
Which sportsbook has the lowest WTA French Open moneyline vig?
Pinnacle currently has the lowest vig at 2.69%, 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.