Best Price Right Now
Best moneyline: Leylah Fernandez +128 at DraftKings (runner-up +119 at Pinnacle); Elise Mertens -130 at Bovada (runner-up -134 at FanDuel).
Spread: Elise Mertens -1.5 (consensus). Best price: Leylah Fernandez +1.5 (-105) at Pinnacle (runner-up -105 at BetOnline.ag); Elise Mertens -1.5 (-111) at Pinnacle (runner-up -115 at BetOnline.ag).
Total (over/under): 21.5 (consensus). Best price: Over 21.5 (-120) at BetOnline.ag (runner-up -120 at LowVig.ag); Under 21.5 (+100) at BetOnline.ag (runner-up +100 at LowVig.ag).
Compared across 14 sportsbooks as of October 18, 2026 at 4:00 PM UTC. The best book often differs by market and by side — the full board is below.
Full Odds Board
| Sportsbook | Leylah Fernandez | Elise Mertens | Spread (Elise Mertens) | Total | O / U |
|---|---|---|---|---|---|
| Bovada | +110 | -130 | -1.5 (-120) | 22 | -110 / -120 |
| Pinnacle | +119 | -136 | -1.5 (-111) | 22 | -104 / -112 |
| betPARX | +116 | -143 | -0.5 (-139) | 21.5 | -130 / -103 |
| FanDuel | +110 | -134 | — | — | — |
| BetOnline.ag | +116 | -136 | -1.5 (-115) | 21.5 | -120 / +100 |
| LowVig.ag | +116 | -136 | -1.5 (-115) | 21.5 | -120 / +100 |
| Bally Bet | +116 | -143 | -0.5 (-139) | 21.5 | -130 / -103 |
| 888sport | +110 | -138 | — | — | — |
| theScore Bet | +105 | -140 | — | — | — |
| BetRivers | +116 | -143 | -1.5 (-122) | 21.5 | -130 / -103 |
| ReBet | +102 | -141 | -1.5 (-118) | 21.5 | -120 / -115 |
| Fanatics | +110 | -140 | — | — | — |
| DraftKings | +128 | -156 | — | — | — |
| Hard Rock Bet | +115 | -145 | — | — | — |
Pricing Context: WTA Ningbo Open Vig
Lowest-vig sportsbooks for WTA Ningbo Open right now: Pinnacle (B+, 3.69% avg vig), BetOnline.ag (B, 4.48% avg vig), LowVig.ag (B, 4.48% avg vig). Lower vig means the book keeps less of every dollar wagered — the best single-game price and the best long-run pricing are not always the same book. DraftKings, which holds a best price on this game, grades B on WTA Ningbo Open vig overall.
Frequently Asked Questions
Which sportsbook has the best odds for Leylah Fernandez vs Elise Mertens?
Best available moneyline right now: Leylah Fernandez +128 at DraftKings (runner-up +119 at Pinnacle); Elise Mertens -130 at Bovada (runner-up -134 at FanDuel). Prices refresh hourly — the full board below shows every tracked sportsbook.
What is the spread for Leylah Fernandez vs Elise Mertens?
The consensus spread is Elise Mertens -1.5. Best price at that number: Leylah Fernandez +1.5 (-105) at Pinnacle (runner-up -105 at BetOnline.ag); Elise Mertens -1.5 (-111) at Pinnacle (runner-up -115 at BetOnline.ag). Some sportsbooks deal a different number — the full board below lists every book's spread.
What is the over/under for Leylah Fernandez vs Elise Mertens?
The consensus total is 21.5. Best price at that number: Over 21.5 (-120) at BetOnline.ag (runner-up -120 at LowVig.ag); Under 21.5 (+100) at BetOnline.ag (runner-up +100 at LowVig.ag).
Has the line moved for Leylah Fernandez vs Elise Mertens?
Line-movement tracking for this game began recently — movement data appears once multiple hourly snapshots accumulate.
How current are these odds?
Odds are refreshed hourly from live sportsbook data (last update: October 18, 2026 at 4:00 PM UTC). Odds change quickly around game time — always verify the price at the book before betting.
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 every hour, on the hour (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.