Betfred and Totepool have signed deals with 31 Racecourse Media Group racetracks, plus Ascot, to provide pool betting services and on-course betting shops.
The courses include Cheltenham, Aintree, Newmarket, Epsom, York, Newbury, Goodwood, Sandown and Ascot, which will join RMG in June 2014.
The pool betting arrangement means the on-course Totepool betting service will remain at those circuits until at least July 2018.
All on-course betting shops will now be operated by Betfred for the same term.
The deal ensures Betfred and Totepool's portfolio of race sponsorship - including the Ebor, Cambridgeshire and Cesarewitch - will continue across all the 32 courses.
RMG chief executive officer Richard FitzGerald said: "We are delighted to conclude these deals with Betfred and Totepool which guarantee and protect the future of pool betting and Totepool products at our racecourses until July 2018.
"The aim is to not only provide a first-class service for racegoers but also to grow the business for the benefit of the sport as a whole."
Totepool managing director Phil Siers said: "Totepool has an exclusive seven-year UK licence and is committed to developing and improving its racecourse facilities, and customer service to Betfred's high standards.
"Totepool will make a significant capital investment in the business and expects this investment to drive a high rate of return, and to quickly help Totepool and its partners deliver a flagship operation."
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