Totals betting in MLB preseason — also known as spring training — asks bettors to wager on whether the combined runs scored by both teams will finish over or under a posted number. Lines typically sit in the 8.5 to 10.5 range, similar to the regular season, but the dynamics driving those totals are fundamentally different. Starting pitchers rarely throw more than three or four innings, and bullpen arms are often a mix of fringe roster candidates and minor leaguers. This creates a fundamentally unpredictable scoring environment that books account for by widening their margins.
Bettors should pay close attention to announced pitching plans, as a team resting its top arms or capping a starter at 40 pitches will lean heavily on unproven relievers, inflating run potential. The totals market in spring training tends to carry heavier vig than regular-season lines — often -115 on both sides rather than the standard -110 — reflecting the uncertainty and lower betting volume. Sharp bettors look for value when books are slow to adjust after lineup announcements, particularly in split-squad games where rosters are diluted across two simultaneous contests.
Analysis updated September 13, 2026. Odds data above refreshes hourly.
Cross-Sport totals Vig Comparison
MLB Preseason totals averages 6.04% vig across 15 sportsbooks. Here's how that compares to other active sports:
Vig Rankings
| # | Sportsbook | Vig | Grade | Events |
|---|---|---|---|---|
| 1 | BetAnything | 4.76% | B | 1 |
| 2 | LowVig.ag | 4.76% | B | 1 |
| 3 | BetOnline.ag | 4.76% | B | 1 |
| 4 | Caesars | 4.76% | B | 1 |
| 5 | Bovada | 4.76% | B | 1 |
| 6 | DraftKings | 4.76% | B | 1 |
| 7 | theScore Bet (ESPN Bet) | 4.76% | B | 1 |
| 8 | MyBookie.ag | 4.99% | C+ | 1 |
| 9 | FanDuel | 5.65% | C+ | 1 |
| 10 | BetUS | 6.98% | C+ | 1 |
| 11 | Hard Rock Bet | 6.98% | C | 1 |
| 12 | BetRivers | 7.74% | D | 1 |
| 13 | betPARX | 7.74% | D | 1 |
| 14 | ReBet | 8.05% | D- | 1 |
| 15 | Fliff | 9.09% | D- | 1 |
Frequently Asked Questions
Which sportsbook has the lowest MLB Preseason totals vig?
BetAnything currently has the lowest vig at 4.76%, earning a grade of B.
What is vig (vigorish) in sports betting?
Vig — short for vigorish, also called juice or overround — is the margin a sportsbook builds into its odds. It's the difference between the true probability of an outcome and what the odds imply. Lower vig means you keep more of your winnings on every bet. For example, a standard -110/-110 line has about 4.76% vig.
How often is this data updated?
We pull fresh odds from The Odds API every hour, on the hour (UTC). Each snapshot captures the latest lines from every sportsbook that has posted odds. The timestamp at the top of the page shows the most recent refresh.
How is the vig grade calculated?
Each sportsbook is graded on average vig: A+ (under 2%) is exchange-level pricing, A (2–3%) very competitive, B+ (3–4%) above average, B (4–5%) the industry standard, C+ (5–6%) slightly below average, C (6–7%) below average, D (7–8%) high vig, D− (8–10%) very high, F (10%+) predatory.
Why does lower vig matter for bettors?
Lower vig directly impacts your long-term returns. A bettor placing $1,000 per week at a book with 4% vig loses roughly $40/week to the house edge. At 2% vig, that drops to $20/week — a $1,040 difference over a year. For serious bettors, shopping for lower vig is one of the most reliable ways to improve profitability.
What sportsbooks do you track?
We track both regulated US sportsbooks (DraftKings, FanDuel, BetMGM, Caesars) and offshore books (Bovada, BetOnline, MyBookie, BetUS, LowVig.ag, BetAnything). Data comes from The Odds API, which aggregates real-time lines from licensed sources.
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.