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Lesson 3 of 3 · Knockout rounds

Upsets

Games and Tournaments · for IPMAT Indore, IPMAT Rohtak and JIPMAT

The exam method

  1. Upset minimum. a seed s meets only worse seeds until the field has fewer players than s; every later win is an upset.
  2. No-upset rule. seed 45 in a 128-player draw is out in the round where it is in the lower half of those left.

Worked examples

Example 3Easy

Seed 28 wins a 128-player knockout. Minimum upsets? Solution: 5. Rounds 3 to 7 have better-seeded opponents.

Example 2Easy

128 players, no upsets: who plays seed 4 in the quarter-final? Solution: seed 5. The quarter-final field is seeds 1-8, paired 1-8, 2-7, 3-6, 4-5.

Picked from the Knockout rounds note for this micro-concept automatically. The whole note: Knockout rounds.