CiceroLove,
I only see an easy solution for for 2n players. I have provided working brute-force code for those cases. 
#!/usr/bin/perl -w
use strict;

my @name = qw(a b c d e f g h);
die "You must have an even number of players" if @name % 2;

my %tournament;
$tournament{$_} = [] for @name;

for my $round (1 .. $#name) {
    $round--;
    for my $player (@name) {
        next if $tournament{$player}->[$round];
        for my $opponent (@name) {
            next if $opponent eq $player;
            next if $tournament{$opponent}->[$round];
            next if @{$tournament{$player}} && grep /^$opponent$/ , @{
+$tournament{$player}};
            $tournament{$player}->[$round] = $opponent;
            $tournament{$opponent}->[$round] = $player;
            last;
        }
    }
}

for my $round (1 .. $#name) {
    $round--;
    print "\n\nRound: $round\n";
    my %seen;
    for my $player (@name) {
        next if $seen{$player};
        print "$player plays $tournament{$player}->[$round]\n";
        $seen{$tournament{$player}->[$round]} = 1;
    }
}

[download]
Update: Originally, I stated that this was all that's possible, but as blokhead points out non 2n solutions with backtracking is possible.

Hope this gets you started - L~R

In reply to Re: Round robin tournament problem by Limbic~Region
in thread Round robin tournament problem by CiceroLove

Title:
Use:  <p> text here (a paragraph) </p>
and:  <code> code here </code>
to format your post, it's "PerlMonks-approved HTML":


  • Posts are HTML formatted. Put <p> </p> tags around your paragraphs. Put <code> </code> tags around your code and data!
  • Titles consisting of a single word are discouraged, and in most cases are disallowed outright.
  • Read Where should I post X? if you're not absolutely sure you're posting in the right place.
  • Please read these before you post! —
  • Posts may use any of the Perl Monks Approved HTML tags:
    a, abbr, b, big, blockquote, br, caption, center, col, colgroup, dd, del, details, div, dl, dt, em, font, h1, h2, h3, h4, h5, h6, hr, i, ins, li, ol, p, pre, readmore, small, span, spoiler, strike, strong, sub, summary, sup, table, tbody, td, tfoot, th, thead, tr, tt, u, ul, wbr
  • You may need to use entities for some characters, as follows. (Exception: Within code tags, you can put the characters literally.)
            For:     Use:
    & &amp;
    < &lt;
    > &gt;
    [ &#91;
    ] &#93;
  • Link using PerlMonks shortcuts! What shortcuts can I use for linking?
  • See Writeup Formatting Tips and other pages linked from there for more info.