Best Price Right Now
Best moneyline: Arizona Diamondbacks -108 at BetUS (runner-up -108 at BetOnline.ag); Kansas City Royals +102 at BetRivers (runner-up +101 at Caesars).
Compared across 19 sportsbooks. Spread and total best prices are in the board below — the best book often differs by market and by side.
Line Movement
Since Sep 7, 3 AM ET, the moneyline has moved toward Arizona Diamondbacks (Kansas City Royals price improved from -102 to +102); the total dropped from 9.5 to 9.
| Market | Tracking opened (Sep 7, 3 AM ET) | Now |
|---|---|---|
| Moneyline (best available) | Arizona Diamondbacks -110 / Kansas City Royals -102 | Arizona Diamondbacks -108 / Kansas City Royals +102 |
| Spread (Kansas City Royals, consensus) | -1.5 | -1.5 |
| Total (consensus) | 9.5 | 9 |
Full Odds Board
| Sportsbook | Arizona Diamondbacks | Kansas City Royals | Spread (Kansas City Royals) | Total | O / U |
|---|---|---|---|---|---|
| FanDuel | -116 | -102 | -1.5 (+155) | 9 | -122 / +100 |
| theScore Bet | -113 | +100 | -1.5 (+160) | 9.5 | +105 / -125 |
| Fliff | -110 | -110 | -1.5 (+145) | 9.5 | +100 / -125 |
| ReBet | -115 | -105 | +1 (-159) | 9 | -126 / -105 |
| MyBookie.ag | -116 | -101 | -1.5 (+152) | 9 | -120 / -102 |
| Fanatics | -115 | -105 | -1.5 (+145) | 9.5 | +100 / -120 |
| 888sport | -118 | -110 | -1.5 (+150) | 9.5 | +105 / -133 |
| DraftKings | -116 | -104 | -1.5 (+153) | 9 | -120 / +100 |
| Caesars | -111 | +101 | +1.5 (-205) | 9 | -120 / +100 |
| Hard Rock Bet | -115 | -105 | -1.5 (+150) | 9.5 | +105 / -125 |
| Bovada | -115 | -105 | +1.5 (-210) | 9 | -120 / +100 |
| betPARX | -121 | +100 | -1.5 (+160) | 9.5 | +102 / -122 |
| Bally Bet | -121 | +100 | -1.5 (+160) | 9.5 | +102 / -122 |
| BetRivers | -118 | +102 | -1.5 (+160) | 9.5 | +102 / -122 |
| BetMGM | -115 | -105 | -1.5 (+154) | 9 | -120 / +100 |
| BetUS | -108 | -102 | +1.5 (-200) | 9 | -120 / +100 |
| BetOnline.ag | -108 | -102 | +1.5 (-200) | 9 | -120 / +100 |
| LowVig.ag | -108 | -102 | +1.5 (-200) | 9 | -118 / +103 |
| Pinnacle | -110 | +100 | +1.5 (-205) | 9 | -117 / +103 |
Pricing Context: MLB Vig
Lowest-vig sportsbooks for MLB right now: Pinnacle (A, 2.63% avg vig), LowVig.ag (A, 2.97% avg vig), BetOnline.ag (B+, 3.53% 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. BetUS, which holds a best price on this game, grades B+ on MLB vig overall.
Frequently Asked Questions
Which sportsbook has the best odds for Arizona Diamondbacks vs Kansas City Royals?
Best available moneyline right now: Arizona Diamondbacks -108 at BetUS (runner-up -108 at BetOnline.ag); Kansas City Royals +102 at BetRivers (runner-up +101 at Caesars). Prices refresh hourly — the full board below shows every tracked sportsbook.
Has the line moved for Arizona Diamondbacks vs Kansas City Royals?
Since Sep 7, 3 AM ET, the moneyline has moved toward Arizona Diamondbacks (Kansas City Royals price improved from -102 to +102); the total dropped from 9.5 to 9.
How current are these odds?
Odds are refreshed hourly from live sportsbook data (last update: September 7, 2026 at 2:00 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 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.