Day 2 of the 2016 Rio Games featured major events that shined a spotlight on the Fab Five, a 'momma on a mission,' beach volleyball and diving. Here were five key things to watch on the second full day of competition.
TO WATCH: Tune in to NBC 5 at 7 p.m. for primetime coverage from Rio. Or return here to watch on your phone, tablet or computer.
U.S. WOMEN TOP THE GYMNASTICS LEADERBOARD IN PRELIMS
The U.S. women's gymnastics team's going away party for national team coordinator Martha Karolyi is off to a near perfect start.
The women breezed to the top of the leaderboard in Olympic preliminaries Sunday afternoon. Their total score of 185.238 was nearly 10 better than second-place China through four subdivisions, a massive gap in a sport where the margins are often measured in fractions.
Three-time world champion Simone Biles, from Spring, led the way. Her all-around total of 62.366 was more than two points clear of teammate Aly Raisman.
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Defending all-around champion Gabby Douglas finished third but will not compete in the all-around final due to rules that stipulate a two-gymnast maximum per country.
Karolyi is retiring after closing ceremonies. Her team put on a dominant display at Rio Olympic Arena, cementing their status as heavy favorites to back up the team gold the "Fierce Five" won in London four years ago.
As for individual events, Biles will compete in the vault, balance beam and floor exercise. Raisman will take on the floor exercise, while Douglas and Dallas' own Madison Kocian will compete in the uneven bars. Laurie Hernandez will compete in the balance beam.
'MOMMA ON A MISSION' GETS BRONZE IN BUTTERFLY
Reigning Olympic champion and new mother, Granbury's own Dana Vollmer, walked away from competition Sunday with a bronze medal.
Sarah Sjostrom of Sweden set a world record to win gold in the women's 100-meter butterfly. Penny Oleksiak of Canada took the silver and Dana Vollmer of the United States claimed the bronze.
LEDECKY GETS FIRST SWIMMING GOLD FOR TEAM USA
Katie Ledecky gave the United States its first swimming gold medal of the Rio Olympics with a world record in the women's 400-meter freestyle on Sunday night.
Ledecky has dominated the longer freestyle events since winning gold in the 800 free at the London Olympics as a 15-year-old.
Also, Michael Phelps and the U.S. captured gold in the men's 4x100-meter freestyle relay at the Rio Games. It's Phelps' 19th Olympic gold medal.
BEACH VOLLEYBALL COMPLETE WITH A ROWDY CROWD
The crowd was a rowdy one at Copacabana for beach volleyball. At times when Americans Lauren Fendrick or Brook Sweat went to serve Sunday against their Polish opponents the crowd shouted "Zika!" at them.
The two Americans lost to their Polish opponents.
Throughout the match, the crowd heavily favored the Polish team, even though those cheering the loudest waved Brazilian flags. Fendrick said the Zika chants didn't faze them.
DIVER SUCCESSFUL IN QUEST FOR GOLD
Wu Minxia ended her record-setting Olympic career the way it began: with a gold medal. Shi Tingmao and Wu totaled 345.60 points to win the women's 3-meter synchronized title Sunday in the first diving event of the Rio de Janeiro Games. They led throughout the five-round competition and won by a whopping 31.77 points on an overcast day at the Maria Lenk Aquatic Center, where light rain briefly fell.
Wu claimed her fourth consecutive gold in 3-meter synchro, becoming the first woman to win four golds in the same event at the Olympics. She also won in 2004, 2008 and 2012, and has had three different partners.
The 30-year-old Chinese diver also made history as the first diver to win five career golds, having won the 3-meter individual event four years ago in London. She won't defend that title in Rio.
