I don't know the whole situation of the races, but if they are road events they are probably put on by a cycling club as required by the national organization to keep the club's license. If this is the case then they are not making a profit from the race. If this is a private promoter then he/she is making a living from the event and paying rent or other fees for use of the venue. I assume that you are selling photos from these races, then did they hire you to shoot it and/or did you ask permission to shoot it. If not then you are trying to profit from their work of putting on the race and in a way trespassing,I would think that giving photos to help promote the race is the least you could do for them. After all promoting the event will or could benefit you, if by your photos more riders participate next year.
Jack