In 1968, the first Open men's singles winner was this athlete & activist, whose name is now on the Open's main stadium
Arthur Ashe
Take a run at this exercise machine, also defined as "any monotonous...routine in which there is little or no...progress"
a treadmill
Moe, Larry, and Curly
The Three Stooges
They're what an entomologist studies
Insects
Kansas looks up to it
Nebraska
In 1973 Ms. Court & Mr. Newcombe got $25,000 each as the U.S. Open was the first of this quartet of titles to equalize men's & women's prizes
The Grand Slam
A 150-lb. woman can burn 90 calories in 10 mins. doing this alliterative exercise using leaping & clapping hands repeatedly
Jumping Jacks
In a Mother Goose rhyme, "Rub-a-dub-dub", they're the "three men in a tub
The Butcher, the Baker, & the Candlestick Maker
Depending on how you pronounce it, it can mean to hint at, or very personal & private
Intimate
It's due north of New Mexico
Colorado
With a powerful style of play, she won the women's singles in the 1990s, 2000s & 2010s, the only player to do so
Serena Williams
Sign up for this 4-letter Hindu philosophy; "The Onion" had an Ali-like "champion" of it boast, "I am the serenest!"
Yoga
A legendary love triangle consisted of King Arthur, Queen Guinevere & him
Lancelot
In her "I Am Woman" song, Helen Reddy was strong & she was this, meaning she can't be defeated
Invincible
Minnesota
The 1990 Open heralded a new all-time great when, at 19, he beat Agassi to become the youngest men's singles champ
Pete Sampras
Tighten & hold your pelvic floor muscles for 5 seconds, 5 times in these not-just-for-pregnancy exercises
Kegels
Their names are Melchior, Balthasar & Gaspar
The Three Wise Men (Or Magi)
Eggs can be artificially hatched in one type of this apparatus; premature babies are kept in another type
Incubator
It's Arkansas' good neighbor to the north
Missouri
His dominance of the first decade of the 2000s includes an Open Era record of five straight titles, losing two sets in the five finals
Roger Federer
Dude, time to hit the exercise machine & do this pulldown, named for the widest muscle in your back!
The Latissimus
The Three Tenors were Pavarotti, Domingo & thisman, who is on an extended farewell tour
Jose Carreras
This 10-letter adjective describes certain devices that cause or are designed to cause fires
Incendiary
It's the state Wyoming looks up to
Montana