18 wrestler format

From Akita Wiki

This page suggests a format for the Akita International Sumo Basho when 18 wrestlers are competing. The format can be adopted and changed where necessary.

Summary

18 wrestlers are split into four pools; two pools of 4, and two pools of 5. Within each pool, a round robin competition takes place, where every wrestler competes against every other wrestler in their pool. The top 2 from each pool advance to the second stage.
The 8 who advance are divided into 2 pools. Again, a round robin competition takes place, where every wrestler competes against every other wrestler in their pool (3 fights each). The winner of each pool in the second stage proceeds to the knockout stage.
The 4 who advance to the knockout stage have single elimination fights, that sets up a final for winner takes all.

Considerations

It is important to take into account two factors when planning a tournament:

  1. the minimum number of fights the finalists must participate in, and
  2. the minimum number of fights a participant can have before being eliminated from the competition.

Using the format suggested on this page:

  • finalists must compete in a minimum of 8 fights (from pool 1 or 2) or 9 fights (from pool 3 or 4),
  • the minimum amount of fights for a competitor is 3 fights (pool 1 or 2) or 4 fights (pool 3 or 4),

Note: playoffs can add more fights for competitors

First Stage

  • Pool Formation: There are four pools in total.
    Pool 1 and 2 consists of 4 members, while Pool 3 and 4 consists of 5 members.
  • Format: Round-robin
    
every member of a particular pool competes against every other member in their pool. Members in Pool 1 and 2 have 3 fights each, while members in Pool 3 and 4 have 4 fights each.
  • Progression Criteria:
    After the round-robin matches, the top 2 members from each pool can progress to the next stage.

Pools

Pool 1
Pos Wrestler W L Qualification
1 Wrestler A 0 0 Advance to Second stage
2 Wrestler B 0 0 Advance to Second stage
3 Wrestler C 0 0
4 Wrestler D 0 0
Pool 2
Pos Wrestler W L Qualification
1 Wrestler E 0 0 Advance to Second stage
2 Wrestler F 0 0 Advance to Second stage
3 Wrestler G 0 0
4 Wrestler H 0 0
Pool 3
Pos Wrestler W L Qualification
1 Wrestler I 0 0 Advance to Second stage
2 Wrestler J 0 0 Advance to Second stage
3 Wrestler K 0 0
4 Wrestler L 0 0
5 Wrestler M 0 0
Pool 4
Pos Wrestler W L Qualification
1 Wrestler N 0 0 Advance to Second stage
2 Wrestler O 0 0 Advance to Second stage
3 Wrestler P 0 0
4 Wrestler Q 0 0
5 Wrestler R 0 0

Eight wrestlers progress to the Second stage.

Round Robin

Round Robin
East West
Round 1
1 vs 3 Wrestler A vs Wrestler C
2 vs 4 Wrestler B vs Wrestler D
5 vs 7 Wrestler E vs Wrestler G
6 vs 8 Wrestler F vs Wrestler H
9 vs 12 Wrestler I vs Wrestler L
10 vs 13 Wrestler J vs Wrestler M
14 vs 17 Wrestler N vs Wrestler Q
15 vs 18 Wrestler O vs Wrestler R
Round 2
1 vs 2 Wrestler A vs Wrestler B
4 vs 3 Wrestler D vs Wrestler C
5 vs 6 Wrestler E vs Wrestler F
8 vs 7 Wrestler H vs Wrestler G
9 vs 10 Wrestler I vs Wrestler J
11 vs 12 Wrestler K vs Wrestler L
14 vs 15 Wrestler N vs Wrestler O
16 vs 17 Wrestler P vs Wrestler Q
Round 3
1 vs 4 Wrestler A vs Wrestler D
3 vs 2 Wrestler C vs Wrestler B
5 vs 8 Wrestler E vs Wrestler H
7 vs 6 Wrestler G vs Wrestler F
9 vs 11 Wrestler I vs Wrestler K
13 vs 12 Wrestler M vs Wrestler L
14 vs 16 Wrestler N vs Wrestler P
18 vs 17 Wrestler R vs Wrestler Q
Round 4
13 vs 11 Wrestler M vs Wrestler K
12 vs 10 Wrestler L vs Wrestler J
18 vs 16 Wrestler R vs Wrestler P
17 vs 15 Wrestler Q vs Wrestler O
Round 5
9 vs 13 Wrestler I vs Wrestler M
10 vs 11 Wrestler J vs Wrestler K
14 vs 18 Wrestler N vs Wrestler R
15 vs 16 Wrestler O vs Wrestler P

Second Stage

The order of the Pools at the end of the First Stage determine where everyone will be positioned for the Second Stage

The wrestlers should now be in the following order:

  • Wrestler 1 is from 1st place in Pool 1
  • Wrestler 2 is from 2nd place in Pool 4
  • Wrestler 3 is from 2nd place in Pool 2
  • Wrestler 4 is from 1st place in Pool 3
  • Wrestler 5 is from 1st place in Pool 2
  • Wrestler 6 is from 2nd place in Pool 3
  • Wrestler 7 is from 2nd place in Pool 1
  • Wrestler 8 is from 1st place in Pool 4

Note: Some wrestlers will have already been in the same pools in the First Stage, but this is unavoidable.

Pools

Pool 1
Pos Wrestler W L Qualification
1 Wrestler 1 0 0 Advance to Knockout Stage
2 Wrestler 2 0 0 Advance to Knockout Stage
3 Wrestler 3 0 0
4 Wrestler 4 0 0
Pool 2
Pos Wrestler W L Qualification
1 Wrestler 5 0 0 Advance to Knockout Stage
2 Wrestler 6 0 0 Advance to Knockout Stage
3 Wrestler 7 0 0
4 Wrestler 8 0 0

Round Robin

Round Robin
East West
Round 1
1 vs 3 Wrestler 1 vs Wrestler 3
2 vs 4 Wrestler 2 vs Wrestler 4
5 vs 7 Wrestler 5 vs Wrestler 7
6 vs 8 Wrestler 6 vs Wrestler 8
Round 2
1 vs 2 Wrestler 1 vs Wrestler 2
4 vs 3 Wrestler 4 vs Wrestler 3
5 vs 6 Wrestler 5 vs Wrestler 6
8 vs 7 Wrestler 8 vs Wrestler 7
Round 3
1 vs 4 Wrestler 1 vs Wrestler 4
3 vs 2 Wrestler 3 vs Wrestler 2
5 vs 8 Wrestler 5 vs Wrestler 8
7 vs 6 Wrestler 7 vs Wrestler 6

Final

The top 2 members from Pool 1 and 2 progress to the Knockout Stage. The winner from Pool 1 fights the runner-up of Pool 2. The winner of Pool 2 fights the runner-up of Pool 1.

Semifinals Finals
    
Winner of Pool 1
Runner-up of Pool 2
 
 
Winner of Pool 2
Runner-up of Pool 1
Semi Final
East West
Wrestler 1 vs Wrestler 4
Wrestler 2 vs Wrestler 3
Final
East West
Wrestler 1 vs Wrestler 2

See also