The term ‘it’s in their blood’’ never fit a family better. Meet the Woldmoes. They live and breathe tennis.

Three generations of tennis players, to be exact. A grandfather, Harry. Dad Mark, and Jennifer, the mom of Hamilton Southeastern tennis players Austin and Alex Woldmoe. And also Jennifer’s mom, Susie. They all know their way around a tennis court.

“Tennis blood runs deep in our family,’’ said senior Austin Woldmoe, prior to a recent match.

“We’re pretty much continuing a tradition, a way of life,’’ said Alex, a sophomore.

Mark Woldmoe’s father, Harry, managed the Muncie tennis center for years and also strung rackets for Ball State University team players for a number of years.

Mark Woldmoe, head tennis professional at the Carmel Racquet Club for 25 years, has kept the family tree rooted, so to speak.

Now, he’s helping his sons grow and hopefully excel in the world of tennis.

“I never thought I’d be coaching high school tennis,’’ said Mark, in his second year at HSE. “When an opening occurred for the head coaching position, my sons encouraged me to go for it. It’s really been special. How many dads get to say they were able to coach both their sons in high school . . . especially at the same time?’’

Mark Woldmoe, who helped Ball State win its first Mid-American Conference tennis championship in 1984 and later earned an ATP ranking in 1987-88, has a special relationship with his sons.

Mark took up the sport when he as 13 years old; Austin started when he was 12; Alex took up the game at the age of 10.

They’ve certainly had good coaching while forming a solid bond.

“It’s been a great experience to be able to play for dad,’’ said Austin, a strong left-hander who is also ambidextrous and plays other sports right-handed. “We’re best of friends . . . dad, Alex and me.

“Dad draws back on his experiences when he played and that has really helped us and the team in general, too.’’

Said Alex, a first-team all-state selection in doubles last year, “We talk and think tennis all of the time . . . even while watching television. We just love the sport.’’

The Woldmoes also love winning. Hamilton Southeastern ended Carmel’s 18-year sectional reign in 2009. It was the Royals’ first sectional championship since 1984.

The Royals entered the season ranked No. 5 in the coaches’ association poll while Carmel held the top spot.

“There’s no question we have the talent to win it all this season,’’ said Austin, who was a first-team all-state selection in singles. “This team is capable of anything it puts its mind to doing.’’

Austin, whose serve has been clocked at 125 miles per hour, said his main goal is a Hoosier Crossroads Conference and state championship. He also has lofty goals of his own.

“I’d love to win the individual singles state championship,’’ he said, “and I’d like to win conference singles. I cramped up and could not finish my match last year in the conference. That was a big disappointment. Hopefully I can get it (win) done this time.’’

Austin may have sent a message earlier this month in the high school season opener against Westfield and reigning HCC singles champion Scott Ramey. Austin won the match 6-2, 6-0.

Alex won conference last year in doubles. But right now he’s more concerned with just getting better, drawing off the experience of his brother and dad.

“Alex is a very strong player,’’ said his dad. “Both boys are very strong. Austin’s serve is comparable to some of the pros right now. I really like the growth Alex has shown as a tennis player, and it’s nice to know we’ve got two more years together in tennis.’’

As coach and player on the court, and as dad and son off of it.