Brand Finance releases first-of-its-kind research on the economic impact and brand strength of the world’s top 50 marathons
SEOUL, 20th May 2025 –Seoul International Marathon ranks 37th among the world’s top 50 marathons in terms of economic impact, with an estimated contribution of USD27 million to the host city, according to the inaugural Marathons 50 report by Brand Finance, the world's leading brand valuation consultancy.
The marathon was ranked as the 22nd strongest brand among the world’s top 50, with a Brand Strength Index score of 68.1/100. It also stands out as the second-highest ranked Asian marathon for 2025, just behind the Tokyo Marathon.
According to Brand Finance’s research data, this performance is attributed to the brand’s strong commitment to runner wellbeing, its growing appeal and interest among both local and international respondents, its innovative spirit in incorporating new technology, and its dedication to the environmental dimensions of sustainability.
Alex Haigh, Managing Director Asia-Pacific, Brand Finance, commented:
"Seoul International Marathon is steadily gaining ground as a recognised event in the global running scene. With efforts to prioritise runner experience, promote sustainability, and introduce thoughtful innovations, it’s drawing more attention from international participants and playing a growing role in supporting the city’s economy.”
Hugo Hensley, Valuation Director at Brand Finance, commented:
“Marathons are simultaneously elite athletic competitions and public mass participation events, and usually also major charity initiatives. This unique position is evident in the strength and value of marathon brands, as well as the USD5.2 billion economic impact they have on the cities where they run. Marathons are extremely attractive and effective sponsorship opportunities for brands that genuinely align with the events’ values of community, charity, and competition.”
Global insights
Brand Finance data reveals that the London Marathon is the strongest marathon brand, with a BSI score of 90.1/100, while the New York City Marathon is the most valuable marathon brand (USD292 million) among seven Abbott World Marathon Majors.
Tokyo Marathon ranks as the sixth strongest marathon brand among the world’s top 50 with a BSI score of 80.0/100 and stands out as Asia’s leading marathon, being the only Asian brand in the top 20.
The Abbott World Marathon Majors’ collective brand value is USD937 million. They also collectively raised USD276 million for charity in 2024, more than half of the total charitable funds raised by the world’s top 50 marathons at an estimated USD425 million.
Brand Finance launched its inaugural Marathons 50 report, in partnership with Tata Consultancy Service (TCS), at the London Stock Exchange Group on 24th April 2025.
Brand Finance is the world’s leading brand valuation consultancy. Bridging the gap between marketing and finance, Brand Finance evaluates the strength of brands and quantifies their financial value to help organisations make strategic decisions.
Headquartered in London, Brand Finance operates in over 25 countries. Every year, Brand Finance conducts more than 6,000 brand valuations, supported by original market research, and publishes over 100 reports which rank brands across all sectors and countries.
Brand Finance also operates the Global Brand Equity Monitor, conducting original market research annually on 6,000 brands, surveying more than 175,000 respondents across 41 countries and 31 industry sectors. By combining perceptual data from the Global Brand Equity Monitor with data from its valuation database — the largest brand value database in the world — Brand Finance equips ambitious brand leaders with the data, analytics, and the strategic guidance they need to enhance brand and business value.
In addition to calculating brand value, Brand Finance also determines the relative strength of brands through a balanced scorecard of metrics evaluating marketing investment, stakeholder equity, and business performance, compliant with ISO 20671.
Brand Finance is a regulated accountancy firm and a committed leader in the standardisation of the brand valuation industry. Brand Finance was the first to be certified by independent auditors as compliant with both ISO 10668 and ISO 20671 and has received the official endorsement of the Marketing Accountability Standards Board (MASB) in the United States.
Brand is defined as a marketing-related intangible asset including, but not limited to, names, terms, signs, symbols, logos, and designs, intended to identify goods, services, or entities, creating distinctive images and associations in the minds of stakeholders, thereby generating economic benefits.
Brand strength is the efficacy of a brand’s performance on intangible measures relative to its competitors. Brand Finance evaluates brand strength in a process compliant with ISO 20671, looking at Marketing Investment, Stakeholder Equity, and the impact of those on Business Performance. The data used is derived from Brand Finance’s proprietary market research programme and from publicly available sources.
Each brand is assigned a Brand Strength Index (BSI) score out of 100, which feeds into the brand value calculation. Based on the score, each brand is assigned a corresponding Brand Rating up to AAA+ in a format similar to a credit rating.
Brand Finance calculates the values of brands in its rankings using the Royalty Relief approach – a brand valuation method compliant with the industry standards set in ISO 10668. It involves estimating the likely future revenues that are attributable to a brand by calculating a royalty rate that would be charged for its use, to arrive at a ‘brand value’ understood as a net economic benefit that a brand owner would achieve by licensing the brand in the open market.
The steps in this process are as follows:
1 Calculate brand strength using a balanced scorecard of metrics assessing Marketing Investment, Stakeholder Equity, and Business Performance. Brand strength is expressed as a Brand Strength Index (BSI) score on a scale of 0 to 100.
2 Determine royalty range for each industry, reflecting the importance of brand to purchasing decisions. In luxury, the maximum percentage is high, while in extractive industry, where goods are often commoditised, it is lower. This is done by reviewing comparable licensing agreements sourced from Brand Finance’s extensive database.
3 Calculate royalty rate. The BSI score is applied to the royalty range to arrive at a royalty rate. For example, if the royalty range in a sector is 0-5% and a brand has a BSI score of 80 out of 100, then an appropriate royalty rate for the use of this brand in the given sector will be 4%.
4 Determine brand-specific revenues by estimating a proportion of parent company revenues attributable to a brand.
5 Determine forecast revenues using a function of historic revenues, equity analyst forecasts, and economic growth rates.
6 Apply the royalty rate to the forecast revenues to derive brand revenues.
7 Discount post-tax brand revenues to a net present value which equals the brand value.
Brand Finance has produced this study with an independent and unbiased analysis. The values derived and opinions presented in this study are based on publicly available information and certain assumptions that Brand Finance used where such data was deficient or unclear. Brand Finance accepts no responsibility and will not be liable in the event that the publicly available information relied upon is subsequently found to be inaccurate. The opinions and financial analysis expressed in the study are not to be construed as providing investment or business advice. Brand Finance does not intend the study to be relied upon for any reason and excludes all liability to any body, government, or organisation.
The data presented in this study form part of Brand Finance's proprietary database, are provided for the benefit of the media, and are not to be used in part or in full for any commercial or technical purpose without written permission from Brand Finance.
