Athletes with Hawaii ties are competing in 10 different sports at the Olympics, which start this week in Tokyo. Some sports, like volleyball, are contested over nearly the entire two weeks of the games. Others, like skateboarding, are staged for just one or two days. (Another sport, wrestling, has no current Hawaii athlete, but 2012 freestyle bronze medalist Clarissa Chun, a Roosevelt graduate, is an assistant coach for the U.S. women’s team.)

Here’s when the Hawaii athletes are slated to perform. For more schedule details and TV viewing and streaming information, see nbcolympics.com/schedule.

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BASKETBALL

Hawaii ties: Hugh Hogland (‘Iolani) is on the host Japanese team. Japan is in group C with Argentina, Slovenia, Spain, Australia, Belgium, Puerto Rico and China for the prelim round. … Maj Forsberg, a former University of Hawaii guard, is a referee in the women’s competition.

Dates: July 24-Aug. 8; men’s medal games Aug. 7

BEACH VOLLEYBALL

Hawaii tie: Taylor Crabb (Punahou) is partnered with Jake Gibb, who at 45 is the oldest Olympic beach volleyball player ever. Crabb’s brother, Trevor, was also in contention for the Olympics with his partner, Tri Bourne. The Crabbs’ uncle, Tony Crabb, was an assistant coach on the U.S. men’s indoor team that won the Olympic gold medal in 1984.

Dates: July 31-Aug. 6

INDOOR VOLLEYBALL

Hawaii ties: Micah Christenson (Kamehameha), Erik Shoji (Punahou) and Kawika Shoji (‘Iolani) return from the bronze-medal-winning U.S. team of 2016. Christenson and Erik Shoji start at setter and libero, and Kawika Shoji is the backup setter. … Tamari Miyashiro (Kalani), a member of the silver-medal-winning 2012 U.S. women’s team, is an assistant coach for the American women.

Dates: July 23-Aug. 8; men’s medal matches Aug. 7, women’s Aug. 8

U.S. men’s prelim schedule (Pool B): July 24, France, 2:45 a.m.; July 25, Russia, 4:05 p.m.; July 27, Tunisia, 4:05 p.m.; July 29, Brazil, 4:05 p.m.; Aug. 1, Argentina, 2:45 a.m.

U.S. women’s prelim schedule (Pool B): July 24, Argentina, 4:05 p.m.; July 26, China, 4:05 p.m.; July 29, Turkey, 2:45 a.m.; July 30, Russia, 4:05 p.m; Aug. 1, Italy, 4:05 p.m.

KARATE

Hawaii tie: Honolulu-born Sakura Kokumai started in karate in Hawaii when she was 7. Now she is a member of the first U.S. Olympic team in the sport.

Dates: Aug. 4-7

Schedule note: Kokumai specializes in kata, which starts with elimination rounds Aug. 4 and concludes with medal competitions Aug. 5.

RUGBY

Hawaii tie: Martin Iosefo (Leilehua) took up rugby when he was in Montana, where he was playing college football. This is his second Olympics with the U.S. team.

Dates: July 26-31, men’s medal matches July 28

SKATEBOARDING

Hawaii ties: Heimana Reynolds (Mid-Pacific), who grew up in Aina Haina, made the park competition squad of the U.S. team in skateboarding’s Olympic debut. Jordyn Barratt (Haleiwa) is on the American women’s team for park.

Dates: July 24-25 (street) and Aug. 3-4 (park)

Schedule note: The prelims and finals are all in one day for each gender and subcategory; Barratt competes Aug. 3 and Reynolds on Aug. 4, with prelims starting at 2 p.m. and finals at 5:30 p.m.

SOFTBALL

Hawaii ties: Former University of Hawaii players Stacey Porter, Rachel Lack, Kaia Parnaby and Clare Warwick are on the Australia roster. Porter, 38, is playing in her third Olympics and has won silver and bronze medals. (There was no softball in the 2012 and 2016 Games.)

Dates: July 20-27 ; medal games July 26, 27

Australia prelim schedule: July 20, Japan, 2 p.m.; July 21, Italy, 8 p.m.; July 23, Canada, 3 p.m.; July 24, United States, 3 p.m.; July 26, Mexico, 3 a.m.

SURFING

Hawaii ties: World champions Carissa Moore (Punahou) and John John Florence (Haleiwa) represent the U.S. in surfing’s Olympics debut. Florence is rehabbing from knee surgery. … Tatiana Weston-Webb (Kauai resident) is on the Brazil team and Mahina Maeda, born on Oahu and a Sunset Beach resident, is surfing for Japan.

Dates: July 25-Aug. 2, schedule dependent on waves

SWIMMING

Hawaii tie: Taeyanna Adams is a Hawaii island resident who trains at Kona Community Aquatic Center and is competing in the 100-meter breaststroke. She is the flagbearer and competing for her native Micronesia.

Dates: July 24-Aug. 1

WATER POLO

Hawaii ties: Five former UH players are on three women’s teams: Dagmar Genee and Maartje Keuning (Netherlands), Monika Eggens and Elyse Lemay-Lavoie (Canada) and Jordan Wedderburn (South Africa). Eggens is team captain. … Jesse Smith is also a captain of the U.S. men’s team. Smith was born in Kailua-Kona, won a silver medal in Athens in 2008, and is competing in his record-tying fifth Olympics for water polo.

Dates: July 24-Aug. 8, women’s medal matches Aug. 7, men’s medal matches Aug. 8

Schedule note: All three teams with UH alumnae are in Group A for the women’s prelim round; Canada plays South Africa, July 27, 8:30 p.m., Netherlands vs. Canada is July 31 at 7 p.m., and South Africa plays Netherlands on July 29 at 7 p.m.

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OLYMPICS ON TV

Listings are subject to change. Go to nbcolympics.com/schedule for the most complete daily listings.

TUESDAY

NBCSN (19/210 SPECTRUM, 87 HT)

2 p.m Softball, Japan vs. Australia (live)

5 p.m. Softball, U.S. vs. Italy (live)

8 p.m. Softball, Mexico vs. Canada (live)

10 p.m. Women’s Soccer, China vs. Brazil (live)

USA (29/555 SPECTRUM, 123 HT)

10 p.m. Women’s Soccer, Pregame Show

10:30 p.m. Women’s Soccer, U.S. vs. Sweden (live)

OLYMPIC CHANNEL: HOME OF TEAM USA (NA/202 SPECTRUM)

9:30 p.m. Women’s Soccer, Great Britain vs. Chile (live)

11:30 p.m. Women’s Soccer, Great Britain vs. Chile

WEDNESDAY

USA (29/555 SPECTRUM, 123 HT)

1:30 a.m. Wom. Soccer, Australia vs. N. Zealand (live)

10 p.m. Men’s Soccer, Mexico vs. France (live)

NBCSN (19/210 SPECTRUM, 87 HT

12:30 a.m. Women’s Soccer, Japan vs. Canada (live)

2:30 a.m. Women’s Soccer, U.S. vs. Sweden

4:30 a.m. Women’s Soccer, China vs. Brazil

6:30 a.m. Women’s Soccer, Japan vs. Canada

8:15 a.m. Women’s Soccer, Australia vs. New Zealand

10 a.m. Softball, U.S. vs. Italy

noon Women’s Soccer, U.S. vs. Sweden

2 p.m. Softball, U.S. vs. Canada (live)

5 p.m. Softball, Japan vs. Mexico (live)

8 p.m. Softball, Italy vs. Australia (live)

10 p.m. Men’s Soccer, N. Zealand vs. So. Korea (live)

OLYMPIC CHANNEL: HOME OF TEAM USA (NA/202 SPECTRUM)

1 a.m. Wom. Soccer, Netherlands vs. Zambia (live)

9:30 p.m. Men’s Soccer, Egypt vs. Spain (live)

11:30 p.m. Men’s Soccer, Ivory Coast vs. Saudi Arabia (live)