Repartidor web js

main.js

var turn = 0;

var teams = ['Rupie', 'TheTeam', 'Veritas', 'ImaginApp', 'Nebuchadnezzar', 'InternalServerError'];
var patoTeams = ['YisusPlusOne', 'ZipCity2000', 'tqzptscsaj'];
var pedroTeams = ['String.random','ToPa'];
var thomasTeams = ['LosExtraterrestresMusicales', 'Rock and Prog', 'PW:Software'];
var result = teams.sort(function(){return 0.5 - Math.random();})
             .reduce(function(previous, current) {
               previous[['pato', 'thomas', 'pedro'][turn++ % 3]].push(current);
               return previous;
             }, {
               pato: patoTeams,
               thomas: thomasTeams,
               pedro: pedroTeams
             });

console.log(result);