Following are a number of back-translations as well as a sample translation for translators of Ecclesiastes 9:11:

• Kupsabiny: “There is another matter that I investigated. The race does not only belong to people who run fast or/and fighting/war does not belong to people who have strength. Food is not only for people who are wise and also wealth not for people of sound mind, and also people who have experience/knowledge are not accepted more than others. But each person has his own luck.” (Source: Kupsabiny Back Translation)
• Newari: “I have seen one other thing in this world,
  The fast runner is not able to win the race.
  The strong is not able to win the battle,
  Nor does food come to the one who has wisdom,
  nor will the one who has great insight have wealth and property,
  and neither will the learned have favor.
  Time and chance come to them all.” (Source: Newari Back Translation)
• Hiligaynon: “I still have-seen (something) here on earth: Not all who run fast win in the race, and not all who are strong win in the war. Not all who are wise can-find a source-of-living/livelihood, not all who are wise becomes-wealthy, and not all who has ability are-being-favored. For it comes to every man his fate/destiny/fortune.” (Source: Hiligaynon Back Translation)
• English: “I have seen something else here on the earth:
  The person who runs fastest does not always win the race,
  the strongest soldiers do not always win the battle,
  the wisest people do not always have food,
  the smartest people do not always become rich,
  and people who have studied a lot are not always honored/treated very specially by others;
  we cannot always control what things will happen to us and where they will happen.” (Source: Translation for Translators)