Event Title - Speed Numbers (5 Minute Numbers)

Aim To commit to memory as many random digits (1,3,5,8,2,5, etc) as possible and recall them perfectly.

Time to memorize 5 minutes

Time to recall 15 minutes

Memorizing paper

  1. Computer generated numbers are presented in rows of 40 digits with 25 rows per page.
  2. 1000 digits (1 sheet) are presented.

Recall paper

  1. Contestants may use the Recall Papers provided.
  2. If a contestant wishes to use his/her own Recall Papers, these must be approved by the adjudicator before the competition. Contestants must write their recalled numbers in rows of 40 digits.
  3. It must be clear how the rows presented on the Recall Paper relate to the rows on the Memorizing Paper (missing rows must be clearly indicated).

Scoring

  1. 40 points are awarded for every complete row that is correctly recalled in order.
  2. For every complete row of 40 that has a single mistake in it (this includes a missing digit), 20 points are awarded for that row.
  3. For every complete row of 40 that has two or more mistakes (including missing digits) 0 points are awarded for that row.
  4. For the last row only. If the last row is incomplete (e.g. only the first 29 numbers have been written down) and all of the digits are correct, then the points awarded will equal the number of digits recalled (29 in this example).
  5. If the last row is incomplete and there is a single mistake (this includes a missing digit) then the points awarded will equal half the number of digits recalled. (For an odd number of digits the fraction is rounded up e.g. 29 the score would be 29/2 rounded up equals 15).
  6. For two or more mistakes in the last row (including missing digits) 0 points are awarded for that row.
  7. The winner of the event is the contestant with the highest score (the best score from the two attempts is put forward).
  8. In the case of tied winning scores, the adjudicator will look at the extra lines of each contestant. (The lines the contestant tried to recall but for which he/she got 0 points.) For every correctly positioned digit 1 decision point will be given. The contestant with more of these decision points is the winner.

World record: 396 digits (Andi Bell, German Championship 2007)

1000 championship points standard: 375 digits

Calculation factor: 1 digit - 2.66667 points