Here are some highlights of the U.S. broadcast schedule on Thursday evening and overnight. All times are Eastern and subject to network changes.

TRACK AND FIELD Gold medals are up for grabs tonight. NBC will cover the men’s 400-meter final, the men’s decathlon final, the women’s heptathlon final and more, all starting at 8 p.m.

WATER POLO One of the best U.S. squads at the Olympics is one you may have never seen. The women’s water polo team takes on Russia in this replay airing at 9 p.m. on NBC Sports Network.

BEACH VOLLEYBALL The undefeated duo April Ross and Alix Klineman are going for the win in this gold medal match against Australia, airing at 10:30 p.m. on NBC.

RHYTHMIC GYMNASTICS CNBC will air coverage of the qualification round at 11 p.m., but viewers can also stream it live beginning at 9:20 p.m. on NBCOlymics.com.

BASKETBALL The U.S. men’s team found its rhythm and pulled away for victory in a semifinal against Australia. NBC Sports Network will air a replay of the match at 11 p.m. The U.S. women’s semifinal against Serbia will air at 12:40 a.m. on NBC.

VOLLEYBALL The U.S. women’s team goes up against Serbia in the semifinals at 12 a.m. on USA Network.

BOXING The Team U.S.A. lightweight Keyshawn Davis takes on Armenia’s Hovhannes Bachkov in the semifinals, beginning at 1 a.m. on NBCOlympics.com.