Closing Lines
Best available closing moneyline: Iga Swiatek -950 at FanDuel (runner-up -950 at Bovada); Donna Vekic +700 at DraftKings (runner-up +700 at Bally Bet).
| Market | Closing (best available) |
|---|---|
| Moneyline — Iga Swiatek | -950 at FanDuel (runner-up -950 at Bovada) |
| Moneyline — Donna Vekic | +700 at DraftKings (runner-up +700 at Bally Bet) |
| Spread (Donna Vekic, consensus) | +6 |
| Total (consensus) | 18.5 |
Line Movement
Since Oct 3, 5 AM ET, the spread moved toward Donna Vekic: Donna Vekic opened +6.5, now +6.
| Market | Tracking opened (Oct 3, 5 AM ET) | Now |
|---|---|---|
| Moneyline (best available) | Iga Swiatek -901 / Donna Vekic +740 | Iga Swiatek -950 / Donna Vekic +700 |
| Spread (Donna Vekic, consensus) | +6.5 | +6 (range +6 to +6.5) |
| Total (consensus) | 18.5 | 18.5 |
Pricing Context: WTA China Open Vig
Lowest-vig sportsbooks for WTA China Open right now: Pinnacle (A, 2.74% avg vig), BetOnline.ag (B, 4.15% avg vig), LowVig.ag (B, 4.15% 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
What was the closing line for Iga Swiatek vs Donna Vekic?
Best available closing moneyline: Iga Swiatek -950 at FanDuel (runner-up -950 at Bovada); Donna Vekic +700 at DraftKings (runner-up +700 at Bally Bet). Closing consensus spread: Donna Vekic +6. Consensus total: 18.5. Captured October 5, 2026 at 3:01 AM UTC across 18 sportsbooks.
How did the line move before Iga Swiatek vs Donna Vekic?
Since Oct 3, 5 AM ET, the spread moved toward Donna Vekic: Donna Vekic opened +6.5, now +6.
Why do closing lines matter?
The closing line is the market’s final, sharpest price. Beating it consistently (positive closing line value, CLV) is the standard test of a winning bettor or betting model. AgentBets archives the best available closing price per side — the benchmark line shoppers actually could have gotten.
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.