thenables.js

    for (matchIndex = 0; matchIndex < matchCount; matchIndex++) {
      isMatchIndexEven = matchIndex % 2 ? undefined : true;
      nextMatchIndex = Math.floor(matchIndex/2);
      nextRoundIndex = this.roundCount() - reverseIndex;
      builtRounds.findBy('index', nextRoundIndex).get('matches').then(function(matches) {
        return matches.findBy('index', nextMatchIndex);
      }).then(function(nextMatch) {
        nextMatch.get('matchups').then(function(matchups) {
          nextMatchup = matchups.findBy('top', isMatchIndexEven);
          match = thisStore.createRecord('match', { index: matchIndex, nextMatchupId: nextMatchup.get('id'), round: round });
          match.save();
          return match
        }).then(function(match) {
          topMatchup = thisStore.createRecord('matchup', { top: true, match: match });
          bottomMatchup = thisStore.createRecord('matchup', { match: match });
          topMatchup.save();
          bottomMatchup.save();
          match.get('matchups').then(function(matchups) {
            matchups.pushObject(topMatchup);
            matchups.pushObject(bottomMatchup);
            match.save();
          });
        })
      })
    }