The first day of the world championships was a mixed day for everyone.   The men's 10000 had an expected result with Britain 's Mo Farah running 27:21.71 to outkick Ethiopia's Ibrahim Jeilan (27:22.23) and Kenya's Paul Tanui (27:22.61) and an unfortunate fourth for USA's Galen Rupp (27:24.39).  In repeating his success from the Olympics Mo Farah confirmed his status as the top 10k runner in the world and he exhibited his great speed he recently showed in setting the European record in the 1500 meters at Monaco. 

    Other '12 Olympic champions struggled with an oft-injured long jumper Brittney Reese (defending world champion also) almost failing to qualify for the final by only jumping 6.57m.  She tied with Funmi Jimoh but qualified for the final by having an identical second-best jump. Teammate and '13 US champion Janay Deloach Soukup qualified on her final jump (6.58m) to finish 11th on the day while Tori Polk jumped a pr 6.75m automatic qualifier on her second jump.   Russia's Elena Sokolova ('12 Olympic Silver Medallist) was the only jumper with previous medal experience to now barely qualify as she jumped 6.70m.  '11 World Silver Medallist Olga Kucherenko also barely qualified with a best of 6.59m.  The only auto-qualifiers were Shara Proctor of Great Brittain (6.85m on her second jump) and one of the hot favorites to medal in a few events, Blessing Okagbare of Nigeria (6.83m on her second attempt).  

    Two-time Defending world champion and '12 Olympic Silver Medallist Trey Hardee no heighted in the Decathlon high jump (1.90m).  One of many Olympic competitors suffering in the post-Olympic year (many athletes have pulled out) he has competed minimally this year.  '12 Olympic champion Ashton Eaton has battled a hamstring injury all year.  Eaton has put up marks of 10.35, 7.73m, 14.39m, 1.93m, and 46.02 for 4502 points.  At the Olympics he scored 8869 points and scored 4661 points on the first day.  If he can equal the second day from the Olympics he will score 8710 points.  '11 World and '12 Olympic bronze medallist Leonel Suarez scored 8501 and 8523 points respectfully but he is not on pr pace at this meet (8654 from 2009).  The Germans may take the next two spots based on their performances this year (top two in the world) and their performances so far in this meet.  '13 World leader Pascal Behrenbruch scored 8558 point pr last year and is only 33 points off that pace (but 37 points ahead of his '13 world leading mark of 8514) after ranking seventh after the first day at 4258 points.  Michael Schrader is 74 points up on his 2013 mark of 8427 points and he is currently placed third with 4427 points.  US runner-up Gunnar Nixon (pr 8198 points) is ranked second with 4493 points after big marks on the first day (44 points up on pr) but won't medal without many second day prs.  

     In the men's 800 only top heat qualifier Mohammed Aman of Ethiopia (8th in '13 Worlds and 6th in '12 Olympics) 1:44.93, Adam Kszot of Poland (6th), and heat winner Nick Symmonds of the US (5th at Worlds and 6th in Olympics), 1:46.90 returned from the '11 Worlds.  '12 Olympic Silver Medallis Nijel Amos of Botswana did not start. '12 Olympic finallist Andrew Osagie of Great Brittain also made the final.  US champion, world leader, and fifth place finisher at the Olympics last year, Duane Solomon, won his heat in 1:45.80 and may be considered the favorite.  Along with Symmonds, the US has a good shot at two medals.

    Olympic women's discus champion and list leader (68.96) Sandra Perkovic of Croatia qualified on her first attempt (63.62m) of the competition as did three time world medallist ('11 bronze) Yarellis Barellis of Cuba (63.63m), '11 World silver medallist Nadine Muller (63.16m), Zinaida Sendriute of Lithuania (64.16m), and Melina Robert-Michon of France (63.16m). '09 World Champion Dani Samuels of Australia made the final with a best throw of 62.85m on her third attempt.  US champion Gia Lewis-Smallwood qualified tenth with a best of 61.30m on her second attempt.

    The men's pole vault had no major surprises in qualifying with Olympic champion and two-time world bronze medallist Renaud Lavillenie of France qualifying along with '07 World Champion Brad Walker of the US, the three Germans (Bjorn Otto Olympic silver, Raphael Holzdeppe Olympic bronze and Malte Mohr), and Renaud's brother Valentin qualified. The only other world medallist to compete was '11 World silver medallist Lazaro Borges of Cuba and he did not make the final.  

    '12 Olympic champion Tiki Gelana of Ethiopia did not finish and the only other member of the Olympic top ten, Valeria Straneo of Italy (eighth), lost out in a kick to Edna Kiplagat of Kenya 2:25:44 to 2:25:58. Kayoko Fukushi of Japan finished all alone in third at 2:27:45.  Deena Kastor was the top US finisher in ninth at 2:36:12.

   '12 Olympic champion, '11 World runner-up and world leader (81.02m) Krisztian Pars of Hungary qualified first at 79.06m on his second throw.  '09 World Champion, '11 bronze and '12 Olympic silver medallist Primoz Kozmus of Slovenia qualified first in his group with a first round throw of 78.10m.  '11 World, '04 Olympic gold and '12 bronze medallist Koji Murofushi qualified for the final and young gun Sergej Litvinov of Russia (2nd on '13 world list at 80.89m) threw 77.41m to make the final.  

   In the first round of the men's 100, American Mike Rodgers and Justin Gatlin, Jamaicans Usain Bolt, Kemar-Bailey Cole, and Nesta Carter, and Frenchman Jimmy Vicaut all won their heats.  Also qualifying for the next round was Nickel Ashmeade of Jamaica, Aaron Brown of Canada (and USC), Richard Thompson of Trinidad, Churandy Martina of The Netherlands, and Christopher Lemaitre of France.  James Dasaolu (#6 on '13 world list at 9.91) of Great Britain struggled to qualify at 10.20 as did Gabriel Mvumvre of Zimbabwe (#12 in '13 at 9.98) at 10.28. A hamstrung Charles Silmon did not make it after running 10.34 for fifth in his heat.  17 year-old Japanese phenom Yoshihide Kiryu (#16 in '13 at 10.01) also failed to qualify after running 10.31.