Best Price Right Now
Best moneyline: Naomi Osaka +125 at Bally Bet (runner-up +125 at betPARX); Karolina Muchova -149 at DraftKings (runner-up -150 at 888sport).
Spread: Karolina Muchova -2.5 (consensus). Best price: Naomi Osaka +2.5 (-125) at ReBet (runner-up -125 at Bovada); Karolina Muchova -2.5 (-103) at BetRivers (runner-up -105 at Bovada).
Total (over/under): 22.5 (consensus). Best price: Over 22.5 (+100) at Bovada (runner-up -108 at Bally Bet); Under 22.5 (-122) at Bally Bet (runner-up -122 at betPARX).
Compared across 10 sportsbooks as of October 5, 2026 at 1:01 AM UTC. The best book often differs by market and by side — the full board is below.
Line Movement
Since Oct 4, 2 PM ET, the spread moved toward Karolina Muchova: Karolina Muchova opened -1, now -2.5.
| Market | Tracking opened (Oct 4, 2 PM ET) | Now |
|---|---|---|
| Moneyline (best available) | Naomi Osaka +125 / Karolina Muchova -149 | Naomi Osaka +125 / Karolina Muchova -149 |
| Spread (Karolina Muchova, consensus) | -1 | -2.5 (range -2.5 to -1) |
| Total (consensus) | 22.5 | 22.5 |
Full Odds Board
| Sportsbook | Naomi Osaka | Karolina Muchova | Spread (Karolina Muchova) | Total | O / U |
|---|---|---|---|---|---|
| Bally Bet | +125 | -157 | -0.5 (-150) | 22.5 | -108 / -122 |
| betPARX | +125 | -157 | -0.5 (-150) | 22.5 | -108 / -122 |
| BetRivers | +125 | -157 | -2.5 (-103) | 22.5 | -108 / -122 |
| DraftKings | +122 | -149 | — | — | — |
| Hard Rock Bet | +125 | -155 | — | — | — |
| 888sport | +120 | -150 | — | — | — |
| ReBet | +110 | -166 | -2.5 (-111) | 21.5 | -135 / -111 |
| FanDuel | +125 | -150 | — | — | — |
| BetMGM | +120 | -155 | — | — | — |
| Bovada | +125 | -150 | -2.5 (-105) | 22.5 | +100 / -130 |
Pricing Context: WTA China Open Vig
Lowest-vig sportsbooks for WTA China Open right now: Pinnacle (B+, 3.14% avg vig), LowVig.ag (B, 4.24% avg vig), BetOnline.ag (B, 4.24% 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 China Open vig overall.
Frequently Asked Questions
Which sportsbook has the best odds for Naomi Osaka vs Karolina Muchova?
Best available moneyline right now: Naomi Osaka +125 at Bally Bet (runner-up +125 at betPARX); Karolina Muchova -149 at DraftKings (runner-up -150 at 888sport). Prices refresh hourly — the full board below shows every tracked sportsbook.
What is the spread for Naomi Osaka vs Karolina Muchova?
The consensus spread is Karolina Muchova -2.5. Best price at that number: Naomi Osaka +2.5 (-125) at ReBet (runner-up -125 at Bovada); Karolina Muchova -2.5 (-103) at BetRivers (runner-up -105 at Bovada). Some sportsbooks deal a different number — the full board below lists every book's spread.
What is the over/under for Naomi Osaka vs Karolina Muchova?
The consensus total is 22.5. Best price at that number: Over 22.5 (+100) at Bovada (runner-up -108 at Bally Bet); Under 22.5 (-122) at Bally Bet (runner-up -122 at betPARX).
Has the line moved for Naomi Osaka vs Karolina Muchova?
Since Oct 4, 2 PM ET, the spread moved toward Karolina Muchova: Karolina Muchova opened -1, now -2.5.
How current are these odds?
Odds are refreshed hourly from live sportsbook data (last update: October 5, 2026 at 1:01 AM 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.