London Games Turn the NFL’s Home-Away Dynamic on Its Head

I was at Tottenham Hotspur Stadium in October 2025 when the Vikings played the Browns. The stadium was packed, the atmosphere felt like a Premier League derby, and the NFL Network pulled in 6.4 million viewers — a record for their coverage of London fixtures, up 21% from 2024. Sitting in the stands, surrounded by British fans wearing jerseys from thirty-two different teams, it struck me that these games have become the single most interesting market anomaly in the NFL betting calendar.

The 2025 International Series delivered its highest-ever average viewership at 6.2 million across all games, a 32% increase over the prior year. The Rams-Jaguars fixture at Wembley drew 86,152 spectators, the largest crowd of the 2025 International Series. These are not exhibition games played in front of curious tourists — they are regular-season matchups with playoff implications, contested in front of increasingly knowledgeable crowds, in a country where NFL betting interest has exploded.

Historical Betting Lines for NFL International Series Games

London games present oddsmakers with a problem they do not face in any other NFL context: neither team is at home. The “home” designation in the NFL schedule is nominal for London fixtures. One team is assigned as the home side for uniform and logistical purposes, but both squads travel roughly the same distance, sleep in the same unfamiliar time zone, and play in a stadium that neither has ever practised in.

The standard home-field advantage adjustment in NFL lines — historically around 2.5 to 3 points, now closer to 1.5 to 2 — should theoretically disappear in London. In practice, oddsmakers have been inconsistent about how they treat it. Some early International Series lines still gave the designated home team a slight edge, while more recent seasons have priced London games almost as true neutral-site contests. The result is that London game lines frequently differ from what those same teams would face in a standard domestic matchup by one to two points, creating pockets of value for bettors who track the discrepancy.

The record for the Vikings at Tottenham — the game with the record viewership — closed with Minnesota as a 3.5-point favourite. On a domestic field, that line would likely have been 4.5 to 5. The 1-to-1.5 point compression was the market’s way of acknowledging neutral-site dynamics without fully removing the home team adjustment. Whether that compression is sufficient is the analytical question London game bettors should be asking every time these lines are released.

Neutral-Site Factors That Move London Game Odds

Greg Ferris, Managing Director for Sports at Entain, put the growth in context during the 2024 season: the NFL has become truly international, with UK and Irish fans betting not just on London fixtures but on primetime US games throughout the week. That broader engagement is relevant to London game odds because it means the UK betting market now exerts measurable influence on line movement for these fixtures. When Entain and other UK operators report staking increases of 51% on London games year over year, the handle flowing through those markets is large enough to affect the consensus line.

Travel fatigue is the most discussed neutral-site factor, but its impact is more nuanced than the conventional wisdom suggests. Both teams fly to London, but the team travelling from the West Coast crosses eight time zones while an East Coast team crosses five. That difference has shown up in the data: West Coast teams playing in London have covered the spread at a lower rate than their East Coast counterparts, though the sample remains small enough that I would not build a system around it.

Weather is a non-factor for London games played at the Tottenham Hotspur Stadium, which has a retractable roof. Wembley is open-air, but London’s autumn climate is mild compared to a November game in Green Bay or Buffalo. The absence of extreme weather tends to stabilise scoring, which is why London game totals have hit the over at a slightly higher rate than the league-wide average — though again, the sample is limited to a handful of games per season.

UK Staking Patterns on London Games

Entain’s disclosure that London game staking rose 51% in 2024 compared to the previous year is the sharpest available measure of how these fixtures galvanise the UK betting market. The jump reflects both the growing NFL fanbase and the fact that London games fall into UK-friendly time slots — typically 2:30 PM or 6:00 PM local time on Sundays — which makes them accessible to casual bettors who cannot stay up for the 1:25 AM finish of a West Coast Sunday Night Football game.

The bet mix for London games at UK sportsbooks skews differently from US market patterns. Anytime touchdown scorer props make up a larger share of UK London game handle than they do for standard NFL games at the same operators, likely because that market is the most familiar prop format for UK punters accustomed to football goalscorer bets. Spread and moneyline action is proportionally lower, which means UK sportsbooks manage a different risk profile on London games than they do on the rest of the NFL slate.

For bettors looking to understand the broader context of how the UK NFL betting market has grown, the London games data sits at the centre of that story. Every metric — viewership, staking, bet volume, new account registrations — spikes around International Series weekends and carries residual engagement into the following weeks.

Do NFL London games favour underdogs or favourites historically?
The sample of London games is still relatively small — roughly six to eight per season in recent years — which limits the statistical power of any conclusion. The available data suggests that designated underdogs have performed slightly better ATS in London than in standard domestic games, likely because the neutral-site dynamics compress the true home-field advantage that favours are priced to receive. However, the effect is modest and not consistent enough to constitute a reliable system on its own.
How does UK sportsbook volume spike during London game weeks?
Entain reported a 51% increase in staking on London games in 2024 compared to 2023. The spike is driven by favourable time slots for UK bettors, heightened media coverage around International Series fixtures, and the growing NFL fanbase in Britain. Bet mix also shifts: UK punters place a higher proportion of anytime touchdown scorer props on London games relative to standard NFL fixtures, reflecting familiarity with goalscorer-style markets from football betting.