Best Price Right Now
Best moneyline: Aryna Sabalenka -492 at DraftKings (runner-up -500 at 888sport); Nikola Bartunkova +420 at FanDuel (runner-up +400 at BetRivers).
Total (over/under): 19.5 (consensus). Best price: Over 19.5 (-132) at BetRivers (runner-up -132 at Bally Bet); Under 19.5 (-104) at BetRivers (runner-up -104 at Bally Bet).
Compared across 9 sportsbooks as of October 2, 2026 at 4:00 PM UTC. The best book often differs by market and by side — the full board is below.
Line Movement
Since Oct 2, 10 AM ET, the moneyline has moved toward Nikola Bartunkova (Aryna Sabalenka price improved from -500 to -492); the spread moved toward Nikola Bartunkova: Nikola Bartunkova opened +5.5, now +5.
| Market | Tracking opened (Oct 2, 10 AM ET) | Now |
|---|---|---|
| Moneyline (best available) | Aryna Sabalenka -500 / Nikola Bartunkova +540 | Aryna Sabalenka -492 / Nikola Bartunkova +420 |
| Spread (Nikola Bartunkova, consensus) | +5.5 | +5 (range +5 to +5.5) |
| Total (consensus) | 19.5 | 19.5 |
Full Odds Board
| Sportsbook | Aryna Sabalenka | Nikola Bartunkova | Spread (Nikola Bartunkova) | Total | O / U |
|---|---|---|---|---|---|
| BetRivers | -590 | +400 | +5.5 (-143) | 19.5 | -132 / -104 |
| Bally Bet | -590 | +400 | +4.5 (+125) | 19.5 | -132 / -104 |
| DraftKings | -492 | +361 | — | — | — |
| betPARX | -590 | +400 | +4.5 (+125) | 19.5 | -132 / -104 |
| 888sport | -500 | +350 | — | — | — |
| ReBet | -649 | +330 | +5.5 (-154) | 19.5 | -138 / -108 |
| FanDuel | -580 | +420 | — | — | — |
| Hard Rock Bet | -600 | +400 | — | — | — |
| Caesars | -550 | +340 | — | — | — |
Pricing Context: WTA China Open Vig
Lowest-vig sportsbooks for WTA China Open right now: Pinnacle (B+, 3.28% avg vig), LowVig.ag (B, 4.31% avg vig), BetOnline.ag (B, 4.31% 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. FanDuel, 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 Aryna Sabalenka vs Nikola Bartunkova?
Best available moneyline right now: Aryna Sabalenka -492 at DraftKings (runner-up -500 at 888sport); Nikola Bartunkova +420 at FanDuel (runner-up +400 at BetRivers). Prices refresh hourly — the full board below shows every tracked sportsbook.
What is the over/under for Aryna Sabalenka vs Nikola Bartunkova?
The consensus total is 19.5. Best price at that number: Over 19.5 (-132) at BetRivers (runner-up -132 at Bally Bet); Under 19.5 (-104) at BetRivers (runner-up -104 at Bally Bet).
Has the line moved for Aryna Sabalenka vs Nikola Bartunkova?
Since Oct 2, 10 AM ET, the moneyline has moved toward Nikola Bartunkova (Aryna Sabalenka price improved from -500 to -492); the spread moved toward Nikola Bartunkova: Nikola Bartunkova opened +5.5, now +5.
How current are these odds?
Odds are refreshed hourly from live sportsbook data (last update: October 2, 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.