NFL Moneyline Betting Strips Away the Spread — And Reveals a Different Story
Spread betting dominates the NFL conversation, and for good reason — it is the deepest, most liquid market. But the moneyline tells a different story, one stripped of handicaps and point advantages, reduced to the simplest question in sport: who wins? Flutter Entertainment’s 2025 SEC filing flagged the 2024/25 NFL season as having the highest rate of favourites winning in nearly twenty years. That single data point reshaped my entire approach to moneyline analysis for the season.
When favourites win more often than the market prices in, moneyline bettors who backed chalk at fair prices collect. But the sportsbook’s exposure on those bets compounds through parlay products, where a string of favourite wins pays out at escalating multiples. The moneyline story of 2025 is not just about who won games — it is about the cascading effect favourite dominance had on every layered product in the market.
NFL Favourite Win Rates: Season-by-Season Moneyline Data
Across the two decades from 2003 to 2025, NFL favourites have won outright roughly 66%—67% of the time. That number holds remarkably steady despite year-to-year fluctuations, which is a sign that the market is efficient at pricing relative team strength. When the favourite win rate drifts above 70% in a given season, sportsbooks feel it acutely, because moneyline parlays and SGPs built on favourite outcomes suddenly hit at elevated rates.
The 2024/25 season pushed the favourite win rate above that threshold. Flutter’s disclosure did not publish the exact percentage, but the language was unambiguous — the highest rate in nearly twenty years, combined with an acknowledgement that it significantly damaged parlay and SGP margins. The prior benchmark season for favourite dominance was 2004, when favourites won outright at roughly 71%. If the 2024/25 season matched or exceeded that, it explains why multiple operators reported softer-than-expected NFL revenue despite record handle.
The inverse seasons are equally instructive. In 2011 and 2015, underdog outright win rates climbed above 37%, creating moneyline environments where backing plus-money dogs at judicious spots produced strong returns. The spread data from those years shows a similar underdog tilt, but the moneyline amplifies the effect because every underdog win pays more than even money, making a 37% hit rate profitable even before accounting for the specific prices available.
I track a rolling three-season average of favourite win rates to smooth out single-year noise. That average has hovered between 65% and 68% for most of the post-2003 era, with the 2023—2025 window sitting at the upper end — roughly 68%. If that continues into 2026, it suggests a structural shift toward competitive imbalance at the top of the NFL, possibly driven by the salary cap’s inability to prevent elite quarterback teams from sustaining dominance.
Biggest Moneyline Upsets and Underdog Streaks
The 2025 NFL season was defined by favourite dominance in aggregate, but individual weeks still produced spectacular upsets. Underdogs went 89-69-4 against the spread, and while their outright win total was lower, the prices they paid when they did win were substantial. A +350 underdog winning outright is a single result that offsets three or four losing favourite-backed moneylines, which is why a blanket strategy of always backing favourites or always backing dogs misses the point entirely.
The largest moneyline upsets in NFL history cluster around double-digit spreads. Teams that closed as 14-point or greater underdogs have won outright roughly 5%—6% of the time since 2003, which sounds negligible until you consider that their moneyline prices typically range from +600 to +1200. At those prices, a 5% win rate is close to break-even, and in seasons where the upset rate ticks even slightly upward, it becomes profitable.
One streak that stands out from my records: during the 2021 season, road underdogs of seven or more points won outright in four consecutive weeks between Weeks 8 and 11. The combined moneyline return from a flat-stake approach on those four games exceeded +1400, a run that no model predicted but that the variance of a seventeen-game season makes inevitable from time to time. That is the nature of NFL moneyline betting — the edges are slim, the variance is enormous, and the payout structure rewards patience over prediction.
Match Result Markets at UK Sportsbooks
In the UK, the moneyline equivalent is the “match result” or “outright winner” market, and it is the most intuitive NFL bet for punters coming from a football background. There is no handicap, no totals calculation — just pick the team you think will win. UK books list this market in decimal odds, which makes the implied probability immediately visible. A team priced at 1.40 has a 71.4% implied win probability; a team at 3.50 is implied at 28.6%.
The main consideration for UK bettors in this market is margin comparison. Because NFL moneylines attract less volume in the UK than in the US, the overround — the total implied probability across both sides, which represents the bookmaker’s margin — tends to be wider. A US sportsbook might price a game at -200/+175, giving an overround of about 3.5%. The same game at a UK book could be priced at 1.48/2.55, producing an overround of 6%—7%. That gap eats directly into long-term returns.
For historical ATS records that complement moneyline data, the team-by-team spread performance adds a layer of context that outright win-loss records alone cannot provide. Together, the two data sets give a more complete picture of which teams consistently overperform or underperform relative to market expectations.
