models.py

from django.db import models

class Match(models.Model):
    roundlimit = models.IntegerField()
    scorelimit = models.IntegerField()

class Score(models.Model):
    match = models.ForeignKey(Match, on_delete=models.PROTECT)
    name = models.CharField(max_length=30)
    score = models.IntegerField()

resources.py

from tastypie import fields
from tastypie.resources import ModelResource
from tastypie.authorization import Authorization
from results.models import Match, Score


class MatchResource(ModelResource):
    scores = fields.ToManyField('results.api.resources.ScoreResource', 'score_set', full=True)

    class Meta:
        queryset = Match.objects.all()
        allowed_methods = ['get', 'post']
        authorization = Authorization()


class ScoreResource(ModelResource):
    class Meta:
        queryset = Score.objects.all()
        allowed_methods = ['get']