British Champions Series

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The British Champions Series was a series of 35 top British flat races, which culminated in a day-long festival of championship races, known as British Champions Day. It was inaugurated in the 2011 season to draw together some of Britain's key flat races into a meaningful championship, with the hope of generating coverage and stimulating interest among the more casual sports fan. It was believed to have achieved its aims based on an increase of 7% attendance at the race days that were part of the 2011 series, as opposed to a 3.9% increase in attendances across the season's race programme as a whole.

The championships were sponsored by the Qatari investment group QIPCO since its inception in 2011. In June 2015 QIPCO renewed their sponsorship until at least 2024 in a deal worth more than £50m, the biggest sponsorship deal ever for British horse racing.{{cite web|title=British Champions Series secures record sponsorship deal|url=https://www.bbc.co.uk/sport/0/horse-racing/33090512|website=BBC Sport|accessdate=11 June 2015}}

The series was split into five divisions - Sprint, Mile, Middle Distance, Long Distance and Fillies & Mares. This series included all Group One races in Great Britain, except those limited to two year old horses.

The series was discontinued in 2025.{{cite web |last1=Scargill |first1=Peter |title=Champions Day: juvenile conditions race added and Long Distance Cup promoted to Group 1 - plus Champions Series set to end |url=https://www.racingpost.com/news/britain/champions-day-juvenile-conditions-race-added-and-long-distance-cup-promoted-to-group-1-plus-champions-series-set-to-end-axyXO7h0ZBBC/ |publisher=Racing Post |access-date=19 February 2025 |archive-url=https://web.archive.org/web/20250218133551/https://www.racingpost.com/news/britain/champions-day-juvenile-conditions-race-added-and-long-distance-cup-promoted-to-group-1-plus-champions-series-set-to-end-axyXO7h0ZBBC/ |archive-date=18 February 2025 |url-status=live}}