diff --git a/src/controllers/RunnerCardController.ts b/src/controllers/RunnerCardController.ts
index a1eee62..2263f07 100644
--- a/src/controllers/RunnerCardController.ts
+++ b/src/controllers/RunnerCardController.ts
@@ -1,9 +1,10 @@
-import { Authorized, Body, Delete, Get, JsonController, OnUndefined, Param, Post, QueryParam } from 'routing-controllers';
+import { Authorized, Body, Delete, Get, JsonController, OnUndefined, Param, Post, Put, QueryParam } from 'routing-controllers';
 import { OpenAPI, ResponseSchema } from 'routing-controllers-openapi';
 import { getConnectionManager, Repository } from 'typeorm';
-import { RunnerCardHasScansError, RunnerCardNotFoundError } from '../errors/RunnerCardErrors';
+import { RunnerCardHasScansError, RunnerCardIdsNotMatchingError, RunnerCardNotFoundError } from '../errors/RunnerCardErrors';
 import { RunnerNotFoundError } from '../errors/RunnerErrors';
 import { CreateRunnerCard } from '../models/actions/CreateRunnerCard';
+import { UpdateRunnerCard } from '../models/actions/UpdateRunnerCard';
 import { RunnerCard } from '../models/entities/RunnerCard';
 import { ResponseEmpty } from '../models/responses/ResponseEmpty';
 import { ResponseRunnerCard } from '../models/responses/ResponseRunnerCard';
@@ -57,27 +58,27 @@ export class RunnerCardController {
 		return (await this.cardRepository.findOne({ id: card.id }, { relations: ['runner'] })).toResponse();
 	}
 
-	// @Put('/:id')
-	// @Authorized("CARD:UPDATE")
-	// @ResponseSchema(ResponseTrack)
-	// @ResponseSchema(TrackNotFoundError, { statusCode: 404 })
-	// @ResponseSchema(TrackIdsNotMatchingError, { statusCode: 406 })
-	// @ResponseSchema(TrackLapTimeCantBeNegativeError, { statusCode: 406 })
-	// @OpenAPI({ description: "Update the track whose id you provided. <br> Please remember that ids can't be changed." })
-	// async put(@Param('id') id: number, @Body({ validate: true }) updateTrack: UpdateTrack) {
-	// 	let oldTrack = await this.trackRepository.findOne({ id: id });
+	@Put('/:id')
+	@Authorized("CARD:UPDATE")
+	@ResponseSchema(ResponseRunnerCard)
+	@ResponseSchema(RunnerCardNotFoundError, { statusCode: 404 })
+	@ResponseSchema(RunnerNotFoundError, { statusCode: 404 })
+	@ResponseSchema(RunnerCardIdsNotMatchingError, { statusCode: 406 })
+	@OpenAPI({ description: "Update the card whose id you provided. <br> Scans created via this card will still be associated with the old runner. <br> Please remember that ids can't be changed." })
+	async put(@Param('id') id: number, @Body({ validate: true }) card: UpdateRunnerCard) {
+		let oldCard = await this.cardRepository.findOne({ id: id });
 
-	// 	if (!oldTrack) {
-	// 		throw new TrackNotFoundError();
-	// 	}
+		if (!oldCard) {
+			throw new RunnerCardNotFoundError();
+		}
 
-	// 	if (oldTrack.id != updateTrack.id) {
-	// 		throw new TrackIdsNotMatchingError();
-	// 	}
-	// 	await this.trackRepository.save(await updateTrack.updateTrack(oldTrack));
+		if (oldCard.id != card.id) {
+			throw new RunnerCardIdsNotMatchingError();
+		}
 
-	// 	return new ResponseTrack(await this.trackRepository.findOne({ id: id }));
-	// }
+		await this.cardRepository.save(await card.update(oldCard));
+		return (await this.cardRepository.findOne({ id: id }, { relations: ['runner'] })).toResponse();
+	}
 
 	@Delete('/:id')
 	@Authorized("CARD:DELETE")
diff --git a/src/models/actions/UpdateRunnerCard.ts b/src/models/actions/UpdateRunnerCard.ts
new file mode 100644
index 0000000..2ee34ab
--- /dev/null
+++ b/src/models/actions/UpdateRunnerCard.ts
@@ -0,0 +1,51 @@
+import { IsBoolean, IsInt, IsOptional, IsPositive } from 'class-validator';
+import { getConnection } from 'typeorm';
+import { RunnerNotFoundError } from '../../errors/RunnerErrors';
+import { Runner } from '../entities/Runner';
+import { RunnerCard } from '../entities/RunnerCard';
+
+/**
+ * This class is used to update a RunnerCard entity (via put request).
+ */
+export class UpdateRunnerCard {
+    /**
+     * The updated card's id.
+     * This shouldn't have changed but it is here in case anyone ever wants to enable id changes (whyever they would want to).
+     */
+    @IsInt()
+    @IsPositive()
+    id?: number;
+
+    /**
+     * The updated card's associated runner.
+     */
+    @IsInt()
+    @IsOptional()
+    runner?: number;
+
+    /**
+     * Is the updated card enabled (for fraud reasons)?
+     * Default: true
+     */
+    @IsBoolean()
+    enabled: boolean = true;
+
+    /**
+     * Creates a new RunnerCard entity from this.
+     */
+    public async update(card: RunnerCard): Promise<RunnerCard> {
+        card.enabled = this.enabled;
+        card.runner = await this.getRunner();
+
+        return card;
+    }
+
+    public async getRunner(): Promise<Runner> {
+        if (!this.runner) { return null; }
+        const runner = await getConnection().getRepository(Runner).findOne({ id: this.runner });
+        if (!runner) {
+            throw new RunnerNotFoundError();
+        }
+        return runner;
+    }
+}
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