<p> Katie Ledecky broke her own 800M freestyle world record on Saturday by claiming an historic fifth gold medal at the world swimming championships to complete the sweep of freestyle titles.<br /><br />Ledecky, 18, clocked 8:07.39 seconds to shave 2.61 seconds off the record she set last year and win gold with New Zealand's Lauren Boyle setting a new Oceania record of 8:17.65 to take silver at 10.26 back. Britain's Jaz Carlin earned bronze at 10.76.<br /><br />She is the first swimmer to win the freestyle sweep of 200, 400, 800 and 1500M world titles, while she also won gold in the 4x200M freestyle relay. <br /><br />le Clos retains gold<br /><br />South Africa's Chad le Clos beat Hungary's Laszlo Cseh on the wall to retain his 100M butterfly gold and avenge his defeat over 200M.<br /><br />Le Clos clocked 50.56 seconds for a new African record as Cseh took silver at 0.31 back while Singapore's Joseph Schooling swam an Asian record of 50.96 at 0.40.<br /><br />Manaudou on top<br /><br />France’s Olympic champion Florent Manaudou claimed the world crown when he won the men’s 50M freestyle gold. <br /><br />Manaudou clocked 21.19 seconds with Nathan Adrian of the United States, the Olympic 100M champion, taking silver at 0.33 seconds as Brazil's Bruno Fratus earned bronze at 0.36.<br /><br /> Seebohm’s double <br /><br />Australia's Emily Seebohm won the women's 200M backstroke gold to complete the double having already won the 100M title.<br /><br />Seebohm clocked a new Oceania record of two minutes, 05.81 seconds with Olympic champion Missy Franklin of the USA taking silver at 0.53 seconds as Hungary's Katinka Hosszu earned bronze at 1.03.<br /><br />Franklin had led at the halfway stage, but a spurt in the final 50 metres gave Seebohm her third worlds gold in Kazan having helped Australia win the 4x100M freestyle relay last Sunday.<br /><br />In another race, the United States set a world record in the final of the mixed 4x100M freestyle. The American team of Ryan Lochte, Nathan Adrian, Simone Manuel and Missy Franklin set a combined time of three minutes 23.05 seconds to win the gold medal.<br /><br />Their time bettered the previous world record of 3:23.29 set by Australia last year.<br />Later in the day, Sweden's Sarah Sjostrom won the women's 50M butterfly final to complete her double having already won the 100M title.<br /><br />Sjostrom clocked 24.96 seconds in the 200M final, to set a new championship record, with Denmark's Jeanette Ottesen taking silver at 0.38 seconds back.<br />China's Lu Ying swam a new Asian record of 25.37 seconds to claim bronze at 0.41.<br /><br /><br />Results: Men: 50M Freestyle: Florent Manaudou (Fra) 21.19, 1; Nathan Adrian (US) 21.52, 2; Bruno Fratus (Bra) 21.55, 3.<br /><br />100M Butterfly: Chad Le Clos (SA) 50.56, 1; Laszlo Cseh (Hun) 50.87, 2; Joseph Isaac Schooling (Sin) 50.96, 3.<br /><br />Women: 800M Freestyle: Katie Ledecky (US) 8:07.39 WR (8:11.00, 2014), 1; Lauren Boyle (NZ) 8:17.65, 2; Jazmin Carlin (Gbr) 8:18.15, 3.<br /><br />200M Backstroke: Emily Seebohm (Aus) 2:05.81, 1; Missy Franklin (US) 2:06.34, 2; Katinka Hosszu (Hun) 2:06.84, 3.<br /><br />50M Butterfly: Sarah Sjoestroem (Swe) 24.96, 1; Jeanette Ottesen (Den) 25.34, 2; Lu Ying (Chi) 25.37, 3.<br /><br />Mixed: 4 x 100M Freestyle Relay: US 3:23.05 WR (Australia, 3:23.29, 2014); Netherlands 3:23.10, 2; Canada 3:23.59, 3.</p>
<p> Katie Ledecky broke her own 800M freestyle world record on Saturday by claiming an historic fifth gold medal at the world swimming championships to complete the sweep of freestyle titles.<br /><br />Ledecky, 18, clocked 8:07.39 seconds to shave 2.61 seconds off the record she set last year and win gold with New Zealand's Lauren Boyle setting a new Oceania record of 8:17.65 to take silver at 10.26 back. Britain's Jaz Carlin earned bronze at 10.76.<br /><br />She is the first swimmer to win the freestyle sweep of 200, 400, 800 and 1500M world titles, while she also won gold in the 4x200M freestyle relay. <br /><br />le Clos retains gold<br /><br />South Africa's Chad le Clos beat Hungary's Laszlo Cseh on the wall to retain his 100M butterfly gold and avenge his defeat over 200M.<br /><br />Le Clos clocked 50.56 seconds for a new African record as Cseh took silver at 0.31 back while Singapore's Joseph Schooling swam an Asian record of 50.96 at 0.40.<br /><br />Manaudou on top<br /><br />France’s Olympic champion Florent Manaudou claimed the world crown when he won the men’s 50M freestyle gold. <br /><br />Manaudou clocked 21.19 seconds with Nathan Adrian of the United States, the Olympic 100M champion, taking silver at 0.33 seconds as Brazil's Bruno Fratus earned bronze at 0.36.<br /><br /> Seebohm’s double <br /><br />Australia's Emily Seebohm won the women's 200M backstroke gold to complete the double having already won the 100M title.<br /><br />Seebohm clocked a new Oceania record of two minutes, 05.81 seconds with Olympic champion Missy Franklin of the USA taking silver at 0.53 seconds as Hungary's Katinka Hosszu earned bronze at 1.03.<br /><br />Franklin had led at the halfway stage, but a spurt in the final 50 metres gave Seebohm her third worlds gold in Kazan having helped Australia win the 4x100M freestyle relay last Sunday.<br /><br />In another race, the United States set a world record in the final of the mixed 4x100M freestyle. The American team of Ryan Lochte, Nathan Adrian, Simone Manuel and Missy Franklin set a combined time of three minutes 23.05 seconds to win the gold medal.<br /><br />Their time bettered the previous world record of 3:23.29 set by Australia last year.<br />Later in the day, Sweden's Sarah Sjostrom won the women's 50M butterfly final to complete her double having already won the 100M title.<br /><br />Sjostrom clocked 24.96 seconds in the 200M final, to set a new championship record, with Denmark's Jeanette Ottesen taking silver at 0.38 seconds back.<br />China's Lu Ying swam a new Asian record of 25.37 seconds to claim bronze at 0.41.<br /><br /><br />Results: Men: 50M Freestyle: Florent Manaudou (Fra) 21.19, 1; Nathan Adrian (US) 21.52, 2; Bruno Fratus (Bra) 21.55, 3.<br /><br />100M Butterfly: Chad Le Clos (SA) 50.56, 1; Laszlo Cseh (Hun) 50.87, 2; Joseph Isaac Schooling (Sin) 50.96, 3.<br /><br />Women: 800M Freestyle: Katie Ledecky (US) 8:07.39 WR (8:11.00, 2014), 1; Lauren Boyle (NZ) 8:17.65, 2; Jazmin Carlin (Gbr) 8:18.15, 3.<br /><br />200M Backstroke: Emily Seebohm (Aus) 2:05.81, 1; Missy Franklin (US) 2:06.34, 2; Katinka Hosszu (Hun) 2:06.84, 3.<br /><br />50M Butterfly: Sarah Sjoestroem (Swe) 24.96, 1; Jeanette Ottesen (Den) 25.34, 2; Lu Ying (Chi) 25.37, 3.<br /><br />Mixed: 4 x 100M Freestyle Relay: US 3:23.05 WR (Australia, 3:23.29, 2014); Netherlands 3:23.10, 2; Canada 3:23.59, 3.</p>