Why Rivalry Games Matter More to Local Advertisers

Rivalry games can draw enormous national audiences. In 2025, for example, Ohio State–Michigan averaged 18.4 million viewers on FOX, making it the most-watched college football game of the regular season. 

That scale is only part of the value for local advertisers. What matters most is how closely a game’s audience overlaps with the markets a business serves. Rivalries can concentrate highly engaged fans in a particular region, bring supporters of both teams into the same local conversation, and create a reliable promotional window that begins before kickoff.

Local audience strength can outweigh national ratings

The game with the largest national audience is not always the best choice for a local campaign. A regional retailer with stores throughout Ohio may get more value from an Ohio State game than from a higher-rated matchup involving teams from another part of the country. A business serving customers in Alabama or Georgia will have different priorities.

For local buyers, efficiency depends on audience concentration. A smaller matchup can deliver more usable reach if a greater share of its viewers lives within the advertiser’s service area. Comparing in-market viewership with national ratings helps buyers identify the games that align most closely with their customers.

One matchup can reach both sides of a local market

Some of college football’s fiercest rivalries involve teams whose fans live and work alongside one another. Take Alabama’s annual Iron Bowl, which pits Alabama against Auburn, two teams with passionate fan bases throughout the state. A local business may count supporters of both teams among its customers.

That shared market creates opportunities for promotions centered on the matchup rather than a single team. A restaurant group with locations across Alabama, for example, could promote rivalry-week reservations or catering to both fan bases, then use geographically targeted game-day messaging around individual locations. Creative focused on the competition can engage both sides without favoring one team and potentially alienating part of the customer base.

Rivalry games create a longer and more predictable advertising window

Interest in a rivalry builds well before game day as fans make plans for the weekend. Local advertisers can use that lead-up to promote watch parties, dining offers, retail events, and other timely campaigns.

For many traditional rivalries, those plans overlap with Thanksgiving weekend. In 2025, the Rivalry Week schedule included games on Thanksgiving, Black Friday, and Saturday, placing major matchups alongside one of the year's busiest holiday shopping periods.

The annual nature of these rivalries also gives advertisers a reliable planning window. Ohio State and Michigan, for instance, are scheduled to meet again on November 28, 2026. With key dates available well in advance, advertisers can coordinate rivalry promotions with their holiday campaigns and secure placements before demand increases.

The longer runway also lets advertisers change the message as the game approaches. Early placements can introduce a promotion, midweek creative can encourage customers to make plans, and game-day messaging can focus on immediate action. Buyers can build a sequence around rising fan interest instead of treating kickoff as the campaign’s only valuable moment.

Loyal fan bases create opportunities beyond the home market

A team’s audience is not limited to its home market. Alumni and longtime supporters often continue following their teams after moving, creating pockets of fan interest in other cities.

Media buyers can use audience data and geographic targeting to identify those markets rather than relying on a team’s home state alone. When evaluating a Rivalry Week opportunity, they should consider:

• Audience location: Which games attract the strongest audiences in the markets the advertiser serves?
• Distribution and targeting: Where are those games available, and what geographic targeting options can buyers access?
• Inventory and cost: Which placements offer the best opportunity to reach relevant viewers within the campaign's budget?

Considering these factors together helps buyers select the rivalry and media placement that best fit the advertiser’s customer footprint.

Turn local rivalry stakes into campaign reach

The strongest Rivalry Week campaign matches a game’s audience with the advertiser’s geography, timing, and budget. National ratings establish the scale of the event, while local audience data helps determine where that attention can produce the greatest value.

Cast Iron Media helps agencies identify live sports advertising opportunities that align with their clients' geographic priorities. Through SportStream Live, buyers can access live-game inventory across major sports, including NCAA football, with geographic targeting at the market and ZIP-code levels.