The WTA French Open presents a distinctive betting landscape shaped by the unique demands of clay-court tennis. Matches on Roland Garros's terre battue tend to run longer, with more extended rallies and fewer service breaks decided by pure power. This favors baseline grinders and players with superior fitness, which can create value for bettors who understand clay-court form versus hard-court results. The WTA tour's inherent volatility — where upsets are significantly more common than on the ATP side — is amplified at the French Open, where surface specialists regularly topple higher-ranked opponents. Market depth is strong for the main draw, with most books offering match winners, set betting, game totals, and increasingly granular in-play markets, though qualifying rounds and early-round matches against lesser-known players can see thinner lines and wider margins.
Vig on WTA French Open markets tends to run wider than what bettors encounter on ATP matches or major team sports. Bookmakers build in extra margin to account for the tour's unpredictability — WTA matches historically produce more upsets than nearly any other professional sport, making accurate pricing genuinely difficult. For marquee matchups and later rounds, competition among sportsbooks tightens margins noticeably, sometimes approaching 3-5% overround. But first- and second-round matches, especially those featuring unranked or qualifying players, can carry vig north of 7-8%. Shopping lines across multiple books becomes especially important given this spread in margins.
The tournament runs over two weeks in late May and early June, and odds tend to be sharpest once the draw is released and the market has had time to settle — typically a day or two before the first round begins. Weather is a meaningful factor at Roland Garros: rain delays can disrupt momentum and alter match dynamics, while heavy, humid conditions slow the ball and disproportionately benefit defensive players. Bettors should closely track recent clay-court form from Madrid, Rome, and Strasbourg rather than relying on season-long rankings, as current surface-specific performance and physical condition heading into a grueling two-week event are far more predictive than reputation alone.
Cross-Sport Vig Comparison
WTA French Open averages 5.99% vig across 14 sportsbooks. Here's how that compares to other active sports:
| Sport | Avg Vig | vs WTA French Open |
|---|---|---|
| WTA French Open | 5.99% | — |
| CFL | 4.98% | 1.01% higher |
| NCAAF | 4.71% | 1.29% higher |
| NFL | 4.72% | 1.27% higher |
| NFL Preseason | 4.40% | 1.60% higher |
Vig Rankings
| # | Sportsbook | Avg Vig | Grade | ML | Spreads | Totals | Events |
|---|---|---|---|---|---|---|---|
| 1 | Pinnacle | 2.69% | A | 2.69% | — | — | 1 |
| 2 | DraftKings | 4.23% | B | 4.23% | — | — | 1 |
| 3 | Hard Rock Bet | 4.44% | B | 4.44% | — | — | 1 |
| 4 | FanDuel | 5.02% | C+ | 5.02% | — | — | 1 |
| 5 | theScore Bet (ESPN Bet) | 5.52% | C+ | 5.52% | — | — | 1 |
| 6 | betPARX | 5.55% | C+ | 4.23% | 6.08% | 6.33% | 1 |
| 7 | Fanatics | 5.84% | C+ | 5.84% | — | — | 1 |
| 8 | Bovada | 6.05% | C | 4.25% | 6.98% | 6.93% | 1 |
| 9 | BetMGM | 6.59% | C | 6.59% | — | — | 1 |
| 10 | 888sport | 6.67% | C | 6.67% | — | — | 1 |
| 11 | Bally Bet | 7.15% | D | 6.05% | 7.51% | 7.88% | 1 |
| 12 | MyBookie.ag | 7.52% | D | 4.86% | 8.85% | 8.85% | 1 |
| 13 | Caesars | 7.82% | D | 6.82% | 7.96% | 8.67% | 1 |
| 14 | Fliff | 8.83% | D- | 8.83% | — | — | 1 |
Frequently Asked Questions
Which sportsbook has the lowest WTA French Open 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.