Kammala wannan magana: Domin 1951, Mutual ya kara yawan tallan tallace-tallace, kuma mai tallafawa na farko, Cikakken Circle Piston Rings, ya janye goyon bayansa. Mutual a ƙarshe ya yanke shawarar dakatar da rufe taron, kuma ya bayyana na ɗan lokaci cewa ba za a watsa tseren 1951 a rediyo ba. A farkon watan Mayu na
1951, Shugaban Speedway Wilbur Shaw ya kammala yarjejeniyar minti na karshe don WIBC don rufe tseren, tare da Sid Collins a matsayin anga. Tsarin WIBC ya bi na Mutual, tare da ɗaukar hoto kai tsaye a farkon, ƙarshen, da sabuntawa na lokaci-lokaci a cikin tseren. WIBC ta ba da ɗaukar hoto ga kusan 25 sauran haɗin gwiwar Mutual.