The League of Ireland Premier Division offers a distinct betting landscape compared to the major European leagues. Running on a calendar-year schedule from February through November, the league features a compact 10-team format with teams playing each other four times, creating a 36-match season. This familiarity between sides produces tighter, more predictable matchups as the season progresses, but the relatively low profile of the league means bookmakers dedicate fewer resources to pricing these markets. Scoring patterns tend to mirror lower-tier European football — expect averages around 2.5 to 2.8 goals per game — though early-season matches played in cold, wet Irish conditions frequently produce lower-scoring affairs. Market depth is limited compared to the Premier League or La Liga; bettors will reliably find match result, over/under, and both-teams-to-score lines, but prop markets and in-play options can be thin or absent entirely.
Vig on League of Ireland matches tends to run wider than on top-flight European football, often sitting in the 6-8% range on match result markets compared to 3-5% for Premier League fixtures. This is a direct consequence of lower betting volume and less sharp-money action, which gives sportsbooks less incentive to sharpen their lines. However, margins vary meaningfully between books, making vig comparison particularly valuable in this league — the difference between the tightest and loosest books on a given LOI match can exceed three or four percentage points.
Seasonal timing matters. Early-round matches in February and March often carry the widest margins as bookmakers lack current-season form data and handle lower volume. Margins tend to compress during the summer months when the league runs alongside quieter periods in the broader European calendar, drawing more bettor attention. Home advantage plays a meaningful role — smaller, tight grounds like Dalymount Park and Tolka Park create genuine atmosphere effects — while squad depth is a critical factor during fixture congestion around FAI Cup rounds and European qualification windows, where part-time or semi-professional squads can rotate significantly.
Analysis updated September 6, 2026. Odds data above refreshes hourly.
↑ 7-day trend: League of Ireland average vig has worsened by 0.15 percentage points over the past week (from 8.21% to 8.36%). Odds margins are widening, meaning bettors are getting less value per wager.
Cross-Sport Vig Comparison
League of Ireland averages 8.36% vig across 8 sportsbooks. Here's how that compares to other active sports:
| Sport | Avg Vig | vs League of Ireland |
|---|---|---|
| League of Ireland | 8.36% | — |
| Primera División - Argentina | 6.86% | League of Ireland runs 1.50 pts higher |
| Austrian Football Bundesliga | 8.18% | League of Ireland runs 0.18 pts higher |
| Belgium First Div | 7.33% | League of Ireland runs 1.03 pts higher |
| Brazil Série A | 6.80% | League of Ireland runs 1.56 pts higher |
Vig Rankings
| # | Sportsbook | Avg Vig | Grade | ML | Spreads | Totals | Events |
|---|---|---|---|---|---|---|---|
| 1 | Pinnacle | 5.04% | C+ | 6.07% | 4.32% | 4.73% | 5 |
| 2 | Bovada | 7.41% | D | 9.01% | 6.62% | 6.61% | 5 |
| 3 | DraftKings | 8.05% | D- | 8.05% | — | — | 5 |
| 4 | betPARX | 8.36% | D- | 7.77% | — | 8.95% | 5 |
| 5 | BetMGM | 9.16% | D- | 9.56% | — | 8.76% | 4 |
| 6 | BetOnline.ag | 9.17% | D- | 8.46% | 9.16% | 9.90% | 5 |
| 7 | LowVig.ag | 9.17% | D- | 8.46% | 9.16% | 9.90% | 5 |
| 8 | BetRivers | 10.55% | F | 11.68% | — | 9.42% | 5 |
Frequently Asked Questions
Which sportsbook has the lowest League of Ireland vig?
Pinnacle currently has the lowest vig at 5.04%, earning a grade of C+.
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.