C-72.1, r. 4 - Rules respecting Standardbred horse races held at a professional race track

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270. During a race, a driver shall not hinder another horse:
(1)  by placing the wheel of his sulky too close to the horse;
(2)  by maintaining an outside position without making the necessary effort to improve his position by one or more places.
Decision 90-09-19, s. 270.