diff --git a/configschema.json b/configschema.json
index 43ac58d5..fa06bb39 100644
--- a/configschema.json
+++ b/configschema.json
@@ -188,6 +188,10 @@
           "type": "string",
           "default": "SHORTNAME"
         },
+        "token": {
+          "type": "string",
+          "default": "TOKEN"
+        },
         "useJapanese": {
           "type": "boolean",
           "default": false
diff --git a/schemas/reused/ScheduleImportStatus.json b/schemas/reused/ScheduleImportStatus.json
index 383397a6..a104c72c 100644
--- a/schemas/reused/ScheduleImportStatus.json
+++ b/schemas/reused/ScheduleImportStatus.json
@@ -7,6 +7,10 @@
       "type": "boolean",
       "default": false
     },
+    "exporting": {
+      "type": "boolean",
+      "default": false
+    },
     "item": {
       "type": "number",
       "default": 0
diff --git a/src/extension/oengus-import.ts b/src/extension/oengus-import.ts
index de2898bd..99d1b1cb 100644
--- a/src/extension/oengus-import.ts
+++ b/src/extension/oengus-import.ts
@@ -1,4 +1,4 @@
-import { OengusMarathon, OengusSchedule, RunData, RunDataPlayer, RunDataTeam } from '@nodecg-speedcontrol/types'; // eslint-disable-line object-curly-newline, max-len
+import { OengusLine, OengusMarathon, OengusSchedule, RunData, RunDataPlayer, RunDataTeam, SendMessageAck } from '@nodecg-speedcontrol/types'; // eslint-disable-line object-curly-newline, max-len
 import { Duration, parse as isoParse, toSeconds } from 'iso8601-duration';
 import { isObject } from 'lodash';
 import needle, { NeedleResponse } from 'needle';
@@ -9,6 +9,7 @@ import { verifyTwitchDir } from './twitch-api';
 import { bundleConfig, checkGameAgainstIgnoreList, getTwitchUserFromURL, padTimeNumber, processAck, to } from './util/helpers'; // eslint-disable-line object-curly-newline, max-len
 import { get as ncgGet } from './util/nodecg';
 import { defaultSetupTime, oengusImportStatus, runDataArray } from './util/replicants';
+import * as events from './util/events';
 
 const nodecg = ncgGet();
 const config = bundleConfig();
@@ -47,6 +48,44 @@ async function get(endpoint: string): Promise<NeedleResponse> {
   }
 }
 
+/**
+ * Make a PUT request to Oengus API.
+ * @param endpoint Oengus API endpoint you want to access.
+ * @param oengusSchedule Oengus schedule.
+ */
+async function put(endpoint: string, oengusSchedule: OengusSchedule): Promise<void> {
+  if (config.oengus.token) {
+    try {
+      nodecg.log.debug(`[Oengus Update] API request processing on ${endpoint}`);
+      const resp = await needle(
+        'put',
+        `https://${config.oengus.useSandbox ? 'sandbox.' : ''}oengus.io/api${endpoint}`,
+        oengusSchedule,
+        {
+          headers: {
+            'Authorization': `Bearer ${config.oengus.token}`,
+            'User-Agent': 'nodecg-speedcontrol',
+            'Content-Type': 'application/json',
+            'oengus-version': '1',
+          },
+        },
+      );
+      // eslint-disable-next-line @typescript-eslint/ban-ts-comment
+      // @ts-ignore: parser exists but isn't in the typings
+      if (resp.statusCode !== 204) {
+        throw new Error('Response status was not 204' + JSON.stringify(resp.body));
+      }
+      nodecg.log.debug(`[Oengus Update] API request successful on ${endpoint}`);
+    } catch (err) {
+      nodecg.log.debug(`[Oengus Update] API request error on ${endpoint}:`, err);
+      throw err;
+    }
+  } else {
+    nodecg.log.debug(`[Oengus Update] No Authorization provided`);
+    throw new Error('No Authorization provided');
+  }
+}
+
 /**
  * Format to time string from Duration object.
  * @param duration Duration object you want to format.
@@ -74,6 +113,7 @@ function isOengusSchedule(source: any): source is OengusSchedule {
  */
 function resetImportStatus(): void {
   oengusImportStatus.value.importing = false;
+  oengusImportStatus.value.exporting = false;
   oengusImportStatus.value.item = 0;
   oengusImportStatus.value.total = 0;
   nodecg.log.debug('[Oengus Import] Import status restored to default');
@@ -235,16 +275,86 @@ async function importSchedule(marathonShort: string, useJapanese: boolean): Prom
 }
 
 nodecg.listenFor('importOengusSchedule', async (data, ack) => {
-  try {
-    if (oengusImportStatus.value.importing) {
-      throw new Error('Already importing schedule');
-    }
-    nodecg.log.info('[Oengus Import] Started importing schedule');
-    await importSchedule(data.marathonShort, data.useJapanese);
-    nodecg.log.info('[Oengus Import] Successfully imported schedule from Oengus');
-    processAck(ack, null);
-  } catch (err) {
-    nodecg.log.warn('[Oengus Import] Error importing schedule:', err);
-    processAck(ack, err);
+  importOengusSchedule(data)
+    .then(() => processAck(ack, null))
+    .catch((err) => {
+      nodecg.log.warn('[Oengus Import] Error importing schedule:', err);
+      processAck(ack, err)
+    });
+});
+
+events.listenFor('importOengusSchedule', async (data, ack) => {
+  importOengusSchedule(data)
+    .then(() => processAck(ack, null))
+    .catch((err) => {
+      nodecg.log.warn('[Oengus Import] Error importing schedule:', err);
+      processAck(ack, err)
+    });
+});
+
+async function importOengusSchedule(data: { marathonShort: string; useJapanese: boolean; }): Promise<void> {
+  if (oengusImportStatus.value.importing) {
+    throw new Error('Already importing schedule');
   }
+  if (oengusImportStatus.value.exporting) {
+    throw new Error('Already exporting schedule');
+  }
+  nodecg.log.info('[Oengus Import] Started importing schedule');
+  await importSchedule(data.marathonShort, data.useJapanese);
+  nodecg.log.info('[Oengus Import] Successfully imported schedule from Oengus');
+}
+
+nodecg.listenFor('updateOengusSchedule', async (data, ack) => {
+  updateOengusSchedule(data)
+    .then(() => processAck(ack, null))
+    .catch((err) => {
+      nodecg.log.warn('[Oengus Import] Error importing schedule:', err);
+      processAck(ack, err)
+    });
 });
+
+events.listenFor('updateOengusSchedule', async (data, ack) => {
+  updateOengusSchedule(data)
+    .then(() => processAck(ack, null))
+    .catch((err) => {
+      nodecg.log.warn('[Oengus Update] Error updating schedule:', err);
+      processAck(ack, err)
+    });
+});
+
+async function updateOengusSchedule(data: { marathonShort: string, lines: Partial<OengusLine>[]}): Promise<void> {
+  if (oengusImportStatus.value.importing) {
+    throw new Error('Already importing schedule');
+  }
+  if (oengusImportStatus.value.exporting) {
+    throw new Error('Already exporting schedule');
+  }
+  nodecg.log.info('[Oengus Update] Started exporting schedule');
+  if (!data) {
+    throw new Error('Did not receive schedule lines from parameters correctly');
+  }
+  if (!data.marathonShort) {
+    throw new Error('Did not receive marathon name from parameters correctly');
+  }
+  const getResponse = await get(`/marathons/${data.marathonShort}/schedule?withCustomData=true`);
+  if (!isOengusSchedule(getResponse.body)) {
+    throw new Error('Did not receive schedule data from Oengus');
+  }
+  var oengusSchedule = getResponse.body;
+
+  data.lines.forEach(lineWithUpdatedValues => {
+    var currentRun = oengusSchedule.lines.find(line => line.id === lineWithUpdatedValues.id);
+    if (!currentRun) {
+      throw new Error(`Did not find run with oengus id:${lineWithUpdatedValues.id} `);
+    }
+    Object.assign(currentRun, lineWithUpdatedValues);
+  });
+
+  oengusSchedule.lines.forEach(line => {
+    var lineAsAny = line as any;
+    lineAsAny.customData = line.customDataDTO;
+  });
+
+  await put(`/marathons/${data.marathonShort}/schedule`, oengusSchedule);
+  nodecg.log.info('[Oengus Update] Successfully updated schedule to Oengus');
+}
diff --git a/src/types/Events.d.ts b/src/types/Events.d.ts
index 6ddb3798..63f953f9 100644
--- a/src/types/Events.d.ts
+++ b/src/types/Events.d.ts
@@ -1,6 +1,7 @@
 /* eslint-disable max-len */
 
 import { BodyData, NeedleHttpVerbs, NeedleResponse } from 'needle';
+import { OengusLine } from './Oengus';
 import { RunData } from './RunData';
 import { Speedruncom } from './Speedruncom';
 import { CommercialDuration } from './Twitch';
@@ -42,6 +43,10 @@ export interface SendMessageArgsMap {
 
   // Speedrun.com
   srcomSearchForUserDataMultiple: { type: 'name' | 'srcom' | 'twitch' | 'twitter', val: (string | undefined | null) }[];
+
+  // Oengus
+  importOengusSchedule: { marathonShort: string, useJapanese: boolean };
+  updateOengusSchedule: { marathonShort: string, lines: Partial<OengusLine>[]};
 }
 
 export interface SendMessageReturnMap {
@@ -76,6 +81,10 @@ export interface SendMessageReturnMap {
 
   // Speedrun.com
   srcomSearchForUserDataMultiple: Speedruncom.UserData | undefined;
+
+  // Oengus
+  importOengusSchedule: void;
+  updateOengusSchedule: void;
 }
 
 export type SendMessageAck = HandledSendMessageAck | UnhandledSendMessageAck;
diff --git a/src/types/schemas/configschema.d.ts b/src/types/schemas/configschema.d.ts
index c9431d29..5a3dc481 100644
--- a/src/types/schemas/configschema.d.ts
+++ b/src/types/schemas/configschema.d.ts
@@ -36,6 +36,7 @@ export interface Configschema {
 	horaro: Horaro;
 	oengus: {
 		defaultMarathon: string;
+		token?: string;
 		useJapanese: boolean;
 		ignoreGamesWhileImporting?: IgnoreGamesWhileImporting;
 		disableSpeedrunComLookup: boolean;
diff --git a/src/types/schemas/horaroImportStatus.d.ts b/src/types/schemas/horaroImportStatus.d.ts
index 700b1283..18d0ac48 100644
--- a/src/types/schemas/horaroImportStatus.d.ts
+++ b/src/types/schemas/horaroImportStatus.d.ts
@@ -7,6 +7,7 @@
 
 export interface HoraroImportStatus {
 	importing?: boolean;
+	exporting?: boolean;
 	item?: number;
 	total?: number;
 }
diff --git a/src/types/schemas/oengusImportStatus.d.ts b/src/types/schemas/oengusImportStatus.d.ts
index ea83b15d..2f359a40 100644
--- a/src/types/schemas/oengusImportStatus.d.ts
+++ b/src/types/schemas/oengusImportStatus.d.ts
@@ -7,6 +7,7 @@
 
 export interface OengusImportStatus {
 	importing?: boolean;
+	exporting?: boolean;
 	item?: number;
 	total?: number;
 }