diff --git a/src/models/DistanceDonation.ts b/src/models/DistanceDonation.ts
index d30b093..915362b 100644
--- a/src/models/DistanceDonation.ts
+++ b/src/models/DistanceDonation.ts
@@ -1,4 +1,4 @@
-import { Entity, Column } from "typeorm";
+import { Entity, Column, ManyToOne } from "typeorm";
 import { IsInt, IsNotEmpty, IsPositive,} from "class-validator";
 import { Donation } from "./Donation";
 import { Runner } from "./Runner";
@@ -14,7 +14,7 @@ export class DistanceDonation extends Donation {
    */
   @Column()
   @IsNotEmpty()
-  //TODO:Relation
+  @ManyToOne(() => Runner, runner => runner.distanceDonations)
   runner: Runner;
 
   /**
@@ -33,7 +33,7 @@ export class DistanceDonation extends Donation {
   public get amount(): number {
     let calculatedAmount = -1;
     try {
-      //calculatedAmount = this.amountPerDistance * this.runner.getDistance();
+      calculatedAmount = this.amountPerDistance * this.runner.getDistance();
     } catch (error) {
       throw error;
     }
diff --git a/src/models/Runner.ts b/src/models/Runner.ts
index a625333..21af21a 100644
--- a/src/models/Runner.ts
+++ b/src/models/Runner.ts
@@ -1,7 +1,8 @@
-import { Entity, Column } from "typeorm";
+import { Entity, Column, OneToMany } from "typeorm";
 import { IsNotEmpty,} from "class-validator";
 import { Participant } from "./Participant";
 import { RunnerGroup } from "./RunnerGroup";
+import { DistanceDonation } from "./DistanceDonation";
 
 /**
  * Defines a runner.
@@ -15,4 +16,7 @@ export class Runner extends Participant {
   @IsNotEmpty()
   //TODO:Relation
   group: RunnerGroup;
+  
+  @OneToMany(() => DistanceDonation, distanceDonation => distanceDonation.runner)
+  distanceDonations: DistanceDonation[];
 }