wrangler

wrangle +‎ -er

wrangler (plural wranglers)

1. Someone who wrangles or quarrels.
2. A cowboy who takes care of saddle horses.
3. A cowboy who takes care of tourists.
4. An animal handler or trainer.
5. (Britain, education, Cambridge University) A student who has completed the third year of the mathematical tripos with first-class honours.

In the Cambridge sense, the student taking the first place in the class is the senior wrangler, the second is the second wrangler, and so on.

• baby wrangler

• optime