Kentucky Derby
The Kentucky Derby was a horse racing competition that took place in Kentucky on Earth during the 19th, 20th, and 21st century. 

According to , there was an old saying where he came from: "if you're going to ride in the Kentucky derby, you don't leave your prized stallion in the stable." McCoy cited this saying to  following the exile of  on . Spock found McCoy's line to be a "curious metaphor", stating that "a stallion must first be broken before it can reach its potential," which also described his observations of Kirk. ()

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fr:Kentucky Derby
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