Answer:
El cumpleaños número quince de tu hermana mayor = <em><u>quinceañera</u></em>
Explanation:
The ring race: dates back to the 17th century but game is still play now days a horse man riding very fast must catch a ring hanging from the end of a string
The tame: it is much more difficult than it looks like the game implies taming a wild horse without frightening it
Anymore just ask :)
All translations could be correct
