In a knockout (single-elimination) tournament, what happens to a player who loses a match?
AnswerThey are out of the tournament
In single elimination, one loss ends a competitor's run.
Challenge · Facts & stats
Challenge Platform facts & stats
7 fact-checked facts about challenges, competitions and records, each with the reason behind it. 5 more are in today's round and join this page after it closes.
The basics
In a track relay race, what do runners pass to their teammates?
AnswerA baton
In track relays, each runner hands a baton to the next within a marked zone.
Going deeper
In a single-elimination tournament with 16 players, how many matches are needed to crown a winner?
Answer15
Every match eliminates one player, and 15 must be eliminated to leave one champion.
How many interlocking rings are on the Olympic flag?
Answer5
The Olympic flag shows five interlocking rings on a white background.
How many events are in a decathlon?
Answer10
Deca means ten, and decathletes compete in ten track and field events over two days.
Expert level
The Elo rating system, used to rank chess players, is named after a professor of what subject?
AnswerPhysics
Arpad Elo, a physics professor and chess master, developed the system.
In a round-robin tournament with 6 teams, how many games are played if each pair meets once?
Answer15
Each of 6 teams plays 5 others; 6 times 5 divided by 2 gives 15 games.
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