--- /dev/null
+<?php
+
+namespace App\Models;
+
+use Illuminate\Database\Eloquent\Factories\HasFactory;
+use Illuminate\Database\Eloquent\Model;
+
+class Tournament extends Model
+{
+ use HasFactory;
+
+ public function participants() {
+ return $this->hasMany(Participant::class);
+ }
+
+ public function protocols() {
+ return $this->hasMany(Protocol::class);
+ }
+
+ public function rounds() {
+ return $this->hasMany(Round::class);
+ }
+
+}