Billington, 27, and Maloy, 30, moved to San Diego and quietly go about their business training for the world class competition in the middle of suburbia.
A typical day includes a three-mile swim, an eight to 10-mile run, and a two hour bike ride, with lots of physical therapy along the way.
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David Lee was born in Alpine, California and his parents still live there. San Diegans will be rooting for him as U.S. Volleyball takes the floor in Rio.
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Santee's Alex Bowen of Team USA signs autographs for fans during the USA Men's Olympic Water Polo Team announcement onboard the USS Midway on July 7, 2016 in San Diego, California.
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Fallbrook's Carli Lloyd of the USA women's indoor volleyball team poses for a portrait at the American Sports Center on May 24, 2016 in Anaheim, California
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USA Rugby's Richelle Stephens - an alum of Fallbrook High School - runs with the ball during a training session at the Olympic Training Center on July 14, 2016 in Chula Vista, California.
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Joe Kovacs poses for a portrait on Nov. 19, 2015 in Los Angeles. He trains at the Chula Vista Olympic Training Center in California. (Photo by Harry How/Getty Images)
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Lakeside resident Nic Long qualified for the 2016 Rio Olympics in BMX.
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Rancho Santa Fe native Karsta Lowe attended La Costa Canyon High School and she's now competing with U.S. Volleyball in the 2016 Rio Olympics.
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Paris Henken (L) attended Coronado High School and now she'll be competing in the Rio 2016 Olympics.
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Coronado's Jesse Smith celebrates winning the Men's Water Polo Preliminary Round match against Montenegro with his son Brook in London during the 2012 Olympics. He'll be part of the team going to Rio.
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Meb Keflezighi celebrates after winning the men's U.S. Olympic Trials Marathon Saturday, Jan. 14, 2012, in Houston. The San Diego High School alum likes to run near Mammoth Mountain as part of his training.
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Corben Sharrah reacts after winning the main event during the USA Olympic Trials for BMX held at the Olympic Training Center on June 11, 2016 in Chula Vista, California. Sharrah trained at the BMX track before heading to Rio.
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SDSU alum Whitney Ashley competes in the Women's Discus qualification during Day One of the 14th IAAF World Athletics Championships Moscow 2013. (Photo by Cameron Spencer/Getty Images)
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Sarah Hammer of Temecula, a four-time Olympian and world record holder, will compete in the 2016 Rio Olympics.
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Chris Benard compete in the Triple Jump in the Olympic trials in July 2016. He trained in Chula Vista at the Olympic Training Center before heading to Rio.
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Cyclist Connor Fields poses on November 17, 2015 in Los Angeles, California. Fields trained for his BMX competition on the track at the Chula Vista Olympic Training Center.
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San Diego Lifeguard Academy alum Margaret Hogan reacts after her second place finish and Olympic qualifying time in the Sr Women K1 500m Final on May 20, 2016.
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Hilltop High School graduate, Desiree Davila, celebrates at the U.S. Marathon Olympic Trials in January 2012. She'll be competing in the marathon event in the 2016 Rio Olympics.
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Sam Crouser competes in the Men's Javelin Throw Final during the 2016 U.S. Olympic Track & Field Team Trials. He spent a lot of time leading up to Rio at the Olympic Training Center in Chula Vista, California.
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Mission Bay HS alum Charles Jock will be competing in the men's 800 meter run in Rio. Here he is during the 2012 U.S. Olympic Track & Field Team Trials. (Photo by Andy Lyons/Getty Images)
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Archer Mackenzie Brown poses for a portrait on March 9, 2016 in Beverly Hills, California. (Photo by Sean M. Haffey/Getty Images) Brown trains at the Olympic Training Center in Chula Vista.
BMX athlete Alise Post will represent the U.S. in Rio.
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Racewalker John Nunn of Santee has competed in several Olympics.
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U.S. Rugby hopeful Jillion Potter.
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Jake Kaminski is seen here competing in London 2012. He trained at the OTC in Chula Vista leading up to the games. Kaminski will compete again for the U.S. in Rio.
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Steffen Peters, of Carmel Valley, California, waves to the crowd after riding his horse Ravel, in the equestrian dressage competition at the 2012 Summer Olympics, Friday, Aug. 3, 2012, in London. (AP Photo/David Goldman)
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The top three women finishers, from left, Shalane Flanagan, first, Desiree Davila, second, and Kara Goucher, third, embrace after running in the U.S. Olympic Trials Marathon, Saturday, Jan. 14, 2012, in Houston. (AP Photo/David J. Phillip) Flanagan, who won San Diego's Rock 'n' Roll Marathon, will be competing again in Rio.
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Marathon runner Amy Cragg of Long Beach will be competing in the 2016 Rio Olympics.
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Ryan Crouser participates in Men's Shot Put Final during the 2016 U.S. Olympic Track & Field Team Trials on July 1, 2016. Crouser was a resident athlete at the Olympic Training Center in Chula Vista, California.
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(L-R) Silver medalist Sarah Hammer of the United States, Gold medalist Laura Trott of Great Britain, and Annette Edmondson of Australia celebrates during the medal ceremony for the Women's Omnium Track Cycling in London 2012. Hammer will return to Rio to compete in cycling.
Miranda Melville of San Diego will be competing in the racewalking event in the 2016 Rio Olympics.
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Longtime resident athlete at the Olympic Training Center in Chula Vista, Cyrus Hostetler will compete in the Men's Javelin Throw.
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Sean Furey, will represent the Chula Vista OTC and TeamUSA in Rio in the javelin throw. He has been a longtime resident athlete at the training facility in San Diego's South Bay.
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Tyler Nase (L) celebrates with a teammate on July 13, 2013 in Lucerne, Switzerland. Nase trains at the Chula Vista Olympic Training Center and will compete in rowing.
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Ricky Robertson will compete in the Men's High Jump Final in the 2016 Rio Olympics. He lived and trained in Chula Vista, California at the Olympic Training Center.
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Will Claye won a medal in London 2012. He'll be back competing in the Triple Jump in the 2016 Rio Olympics. Claye spent the time leading up to Rio at the Olympic Training Center in Chula Vista, California.
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Heather Miller-Koch, pictured in the Women's Heptathlon Long Jump during the 2016 U.S. Olympic Track & Field Team Trials on July 10, trained at the Chula Vista Olympic Training Center.
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Andrew Evans will compete in the discus event of Track & Field after spending some time training in Chula Vista at the Olympic Training Center.
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We're adding more local athletes as they qualify for the games. Check back and be sure to sign up for our Olympic newsletter to get all of our coverage before the games begin August 5!
The top-ranked U.S. women's volleyball team lost in the semifinals Thursday in a fierce battle with Serbia.
Locals Karsta Lowe and Carli Lloyd are part of the team under the direction of coach Karch Kiraly and assistant coach Tom Black who spent was a student and coach at UC San Diego.
Lowe, a Rancho Santa Fe native, competed in tennis when she attended La Costa Canyon High School. Students of Fallbrook High School will recognize Lloyd's name from her time as an athlete there.
The team will compete for a chance at the bronze medal on Saturday.
Olympic Triathletes Joe Maloy, left, and Greg Billington, right, go about their training in the middle of suburbia. NBC 7’s Steven Luke has more.
Paris Henken and teammate Helena Scutt secured a spot in the medal race for Women’s 49er FX. However, it was not to be. The Coronado High School graduate finished the medal race in 9th place to end her first Olympics in 10th overall.
Fellow U.S. Sailing and San Diego Olympian Briana Provancha raced for the gold Thursday in the women's 470. However, Provancha and teammate Annie Haeger finished in 7th place.
An unfortunate turn of events for Annie and Briana who finish 10th in the medal race after a very strong start. An excellent regatta no less
Track and field contenders Joe Kovacs and Ryan Crouser competed in the men’s shot finals on Thursday afternoon; Crouser won gold and Kovacs took home the silver medal.
Crouser beat Kovacs with an Olympic-record heave of 22.52 meters that topped Kovacs' 21.78. New Zealand's Thomas Walsh got bronze.
Kovacs lived and trained at the Olympic Training Center (OTC) in Chula Vista, California before heading to the 2016 Rio Olympics.
Crouser spent some time training at the Chula Vista OTC as well.
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Ryan Crouser participates in Men's Shot Put Final during the 2016 U.S. Olympic Track & Field Team Trials on July 1, 2016. Crouser was a resident athlete at the Olympic Training Center in Chula Vista, California.
Darrell Hill, another shot put athlete who trained at the OTC facility in San Diego's South Bay also competed in qualifications Thursday morning. He ranked 23rd with a distance of 19.56m. Hill did not advance to the finals.
In the BMX quarterfinals Thursday, all of the men on Team USA advanced to the semifinals. Connor Fields finished in second place after his heat with eight points and Corben Sharrah third in the same heat with nine points. Lakeside's Nic Long finished third in his heat with 10 points. All move on to the semifinals.
For updates from the 2016 Rio Games, including profiles of San Diego athletes, visit our Olympics section here.
NBC 7’s Steven Luke is reporting from Rio during the 2016 Olympic Summer Games; follow him on Twitter and Facebook for exciting updates from Brazil through the end of the 2016 Olympic Summer Games.
Steven Luke/NBC 7 San Diego
Want this Team USA windbreaker? It will cost you.
Steven Luke/NBC 7 San Diego
Clothes from the Team USA Store in Rio de Janeiro sure don't come cheap. This red-sleeved "medal ceremony" windbreaker sells for $385 + tax.
Steven Luke/NBC 7 San Diego
The Team USA Store is located at the USA House in Rio, set up by the U.S. Olympic Committee. The shop sells brand-name Team USA gear made by Nike and Ralph Lauren, including this Ralph Lauren Opening Ceremony blazer, which sells for $712 + tax.
Steven Luke/NBC 7 San Diego
This Ralph Lauren white zip-up sweatshirt sells for $180 + tax at the Team USA Store in Rio de Janeiro.
Steven Luke/NBC 7 San Diego
Team USA board shorts, made by Hurley, sell for $106 + tax a pop. Pretty pricey for some pool gear.
Steven Luke/NBC 7 San Diego
In San Diego, flip-flops are a wardrobe staple. But if you're looking to buy some Hurley brand Team USA flip-flops in Rio, be prepared to shell out $82 + tax for these puppies.
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At the Team USA Store in Rio, one pair of Team USA boxer briefs sells for $30 + tax.
Steven Luke/NBC 7 San Diego
"Looks like I'm getting a T-Shirt," NBC 7's Steven Luke said after perusing through the expensive gear at the Team USA Store in Rio de Janeiro. Luke said souvenirs inside the main Olympic store in Rio are not quite as overpriced.
