Direct answer
Objectives follow journal display order. Some depend on your choices; follow the active objective in the game.
Result
Every man who wishes to take part in the final race on Hindarsfjall must first win the races organized in Kaer Trolde and Fayrlund. Whoever accomplished that could travel to the Holy Isle to face the supremely-skilled and highly-experienced riders known as Speedy Osvald and Lonelyboy Svan.
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