Olympics!

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Across
  1. 3. Large sports venue
  2. 4. Area for throwing and jumping events
  3. 5. Nation represented by athletes
  4. 7. Best performance ever achieved
  5. 8. Short distance race
  6. 9. Third place prize
  7. 11. Formal Olympic celebration
  8. 13. Long distance running event
  9. 17. Sport with flips and routines
  10. 18. Award for top finishers
Down
  1. 1. Pool-based Olympic sport
  2. 2. Winning result
  3. 3. Second place prize
  4. 6. Official who enforces rules
  5. 10. Global multi-sport competition
  6. 12. Platform for medal winners
  7. 14. Flame carried in opening ceremony
  8. 15. Olympic competitor
  9. 16. Running surface for races
  10. 17. First place prize