Shaunae Miller of Bahamas won the women's 400m final in dramatic style with a diving finish across the line, preventing USA's Allyson Felix from winning a fifth Olympic gold medal on Monday (15 August) night.

Miller clocked 49.44 seconds to narrowly hold off Felix, who made a late surge in the final straight and loooked like she would catch her rival, finishing strongly with a time of 49.51. 

Jamaican Shericka Jackson took the bronze in 49.85.

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Felix won the 400m at the world championships last year and was planning to run the 200m and 400m double at Rio 2016, but was hampered by an ankle injury at the US trials and failed to make the team for the 200m. She won the 200m in London four years ago.

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Felix now has seven Olympic medals, including three silvers. She could still run both the 4x100 and the 4x400 relays in Rio.The 30-year-old American entered the games as one of six women with four Olympic gold medals in athletics.

Rudisha does it again

David Rudisha won his second 800m Olympic title in a row on Monday by swerving into the lead just after the first lap and using his long strides to kick for home.

Rudisha wins the 800m final but fails to break his own world record (Photo: Quinn Rooney/Getty Images)

 The world-record holder surged across the line to retain his crown, giving no one else a chance and becoming the first man in more than half a century to win back-to-back titles over two laps at the Summer Games.

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Rudisha won in 1:42.15 from Algeria's Taoufik Makhloufi, who ran a national record time of 1:42.61 to add an 800m silver to the gold he won in the 1500m at London 2012. Clayton Murphy of the USA powered through in the final 50m for bronze and a PB of 1:42.93, overhauling France's Pierre-Ambroise Bosse to make the podium. 

Rudisha smiled at the end, a broad, beaming smile, relieved maybe after a trying season where he lost a couple of times in the Diamond League and was beaten into third at the Kenyan trials. He freely offered up hugs to the other medallists, too, as he draped the red, black and green Kenyan flag across his shoulders once again.

Pole's apart in the hammer

In the final of the women's hammer competition earlier in the day, Poland's Anita Wlodarczyk, came good on her promise to win the event in style.

Unbeaten for over two years, Wlodarczyk registered a huge world record of 82.29m with a monster throw in round three, adding 1.21m to her own mark set last year. 

To further underline her dominance in the event, 31-year-old Wlodarczyk produced three of the five longest throws in history. Now the top 15 throws of all time belong to her.

Victory also ensured the she has the full cache of titles; Olympic, world and European, and she now becomes the second Pole after the late Kamila Skolimowska to claim this title. Wlodarczyk throws using the glove of close friend Skolimowska, who died in 2009 after winning gold at Sydney 2000 as a 17-year-old.

China’s Zhang Wenxiu won the silver medal with a 76.75m - adding to the bronze she won at the Beijing 2008 Games - and Sophie Hitchon became Great Britain's first Olympic hammer medal winner for 92 years. She clinched a dramatic last-gasp bronze by adding 68cm to her personal best with a British record throw of 74.54m in round six.