diff --git a/app/Http/Controllers/Admin/ScoringGuideController.php b/app/Http/Controllers/Admin/ScoringGuideController.php
index deb991f..e07b1f7 100644
--- a/app/Http/Controllers/Admin/ScoringGuideController.php
+++ b/app/Http/Controllers/Admin/ScoringGuideController.php
@@ -209,5 +209,3 @@ class ScoringGuideController extends Controller
 
     }
 }
-
-// TODO need to be able to delete a scoring guide
diff --git a/app/Http/Controllers/Admin/StudentController.php b/app/Http/Controllers/Admin/StudentController.php
index 5f8983e..6c775c9 100644
--- a/app/Http/Controllers/Admin/StudentController.php
+++ b/app/Http/Controllers/Admin/StudentController.php
@@ -6,9 +6,9 @@ use App\Http\Controllers\Controller;
 use App\Models\Audition;
 use App\Models\School;
 use App\Models\Student;
-use App\Models\User;
 use Illuminate\Http\Request;
 use Illuminate\Support\Facades\Auth;
+
 use function abort;
 use function view;
 
@@ -16,35 +16,43 @@ class StudentController extends Controller
 {
     public function index()
     {
-        if (! Auth::user()->is_admin) abort(403);
-        $students = Student::with(['school','entries'])->orderBy('last_name')->orderBy('first_name')->paginate(15);
+        if (! Auth::user()->is_admin) {
+            abort(403);
+        }
+        $students = Student::with(['school', 'entries'])->orderBy('last_name')->orderBy('first_name')->paginate(15);
+
         return view('admin.students.index', ['students' => $students]);
     }
 
     public function create()
     {
-        if (! Auth::user()->is_admin) abort(403);
+        if (! Auth::user()->is_admin) {
+            abort(403);
+        }
         $minGrade = Audition::min('minimum_grade');
         $maxGrade = Audition::max('maximum_grade');
         $schools = School::orderBy('name')->get();
-        return view('admin.students.create',['schools' => $schools, 'minGrade' => $minGrade, 'maxGrade' => $maxGrade]);
+
+        return view('admin.students.create', ['schools' => $schools, 'minGrade' => $minGrade, 'maxGrade' => $maxGrade]);
     }
 
     public function store()
     {
-        if (! Auth::user()->is_admin) abort(403);
+        if (! Auth::user()->is_admin) {
+            abort(403);
+        }
         request()->validate([
             'first_name' => ['required'],
             'last_name' => ['required'],
             'grade' => ['required', 'integer'],
-            'school_id' => ['required', 'exists:schools,id']
+            'school_id' => ['required', 'exists:schools,id'],
         ]);
 
         $student = Student::create([
             'first_name' => request('first_name'),
             'last_name' => request('last_name'),
             'grade' => request('grade'),
-            'school_id' => request('school_id')
+            'school_id' => request('school_id'),
         ]);
 
         return redirect('/admin/students');
@@ -52,32 +60,42 @@ class StudentController extends Controller
 
     public function edit(Student $student)
     {
-        if (! Auth::user()->is_admin) abort(403);
+        if (! Auth::user()->is_admin) {
+            abort(403);
+        }
         $minGrade = Audition::min('minimum_grade');
         $maxGrade = Audition::max('maximum_grade');
         $schools = School::orderBy('name')->get();
+
         return view('admin.students.edit', ['student' => $student, 'schools' => $schools, 'minGrade' => $minGrade, 'maxGrade' => $maxGrade]);
     }
 
     public function update(Request $request, Student $student)
     {
-        if (! Auth::user()->is_admin) abort(403);
+        if (! Auth::user()->is_admin) {
+            abort(403);
+        }
         request()->validate([
             'first_name' => ['required'],
             'last_name' => ['required'],
             'grade' => ['required', 'integer'],
-            'school_id' => ['required', 'exists:schools,id']
+            'school_id' => ['required', 'exists:schools,id'],
         ]);
 
+        foreach ($student->entries as $entry) {
+            if ($entry->audition->minimum_grade > request('grade') || $entry->audition->maximum_grade < request('grade')) {
+                return redirect('/admin/students/'.$student->id.'/edit')->with('error', 'This student is entered in an audition that is not available to their new grade.');
+            }
+        }
+
         $student->update([
             'first_name' => request('first_name'),
             'last_name' => request('last_name'),
             'grade' => request('grade'),
-            'school_id' => request('school_id')
+            'school_id' => request('school_id'),
         ]);
 
         return redirect('/admin/students');
 
-//        TODO if a students grade is changed, we need to be sure they are still eligible for the auditions in which they are entered.
     }
 }
diff --git a/app/Http/Controllers/Tabulation/TabulationController.php b/app/Http/Controllers/Tabulation/TabulationController.php
index a107fb5..dbeddc8 100644
--- a/app/Http/Controllers/Tabulation/TabulationController.php
+++ b/app/Http/Controllers/Tabulation/TabulationController.php
@@ -69,7 +69,6 @@ class TabulationController extends Controller
             return $entry->scoring_complete;
         });
         $ensembleLimits = $this->seatingService->getLimitForAudition($audition->id);
-        // TODO die gracefully if no ensemble limits are set for this audition
         $auditionComplete = $scoringComplete && $doublerComplete;
 
         $seatableEntries = $this->seatingService->getSeatableEntries($audition->id);
diff --git a/app/Services/SeatingService.php b/app/Services/SeatingService.php
index 26fdd38..daf8285 100644
--- a/app/Services/SeatingService.php
+++ b/app/Services/SeatingService.php
@@ -37,6 +37,9 @@ class SeatingService
 
     public function getLimitForAudition($auditionId)
     {
+        if (! $this->getAcceptanceLimits()->has($auditionId)) {
+            return new \Illuminate\Database\Eloquent\Collection();
+        }
         return $this->getAcceptanceLimits()[$auditionId];
     }