diff --git a/common/new-contract.ts b/common/new-contract.ts
index 829ab539..89fd4fb2 100644
--- a/common/new-contract.ts
+++ b/common/new-contract.ts
@@ -8,7 +8,6 @@ import {
   Numeric,
   outcomeType,
   resolution,
-  resolutionType,
 } from './contract'
 import { User } from './user'
 import { parseTags } from './util/parse'
@@ -25,7 +24,6 @@ export function getNewContract(
   ante: number,
   closeTime: number,
   extraTags: string[],
-  resolutionType: resolutionType,
   automaticResolution: resolution,
   automaticResolutionTime: number,
 
@@ -64,7 +62,6 @@ export function getNewContract(
     isResolved: false,
     createdTime: Date.now(),
     closeTime,
-    resolutionType,
     automaticResolution,
     automaticResolutionTime,
 
diff --git a/functions/src/create-contract.ts b/functions/src/create-contract.ts
index 6dac7c99..cc9d43b2 100644
--- a/functions/src/create-contract.ts
+++ b/functions/src/create-contract.ts
@@ -13,8 +13,6 @@ import {
   MAX_TAG_LENGTH,
   Numeric,
   OUTCOME_TYPES,
-  RESOLUTIONS,
-  RESOLUTION_TYPES
 } from '../../common/contract'
 import { slugify } from '../../common/util/slugify'
 import { randomString } from '../../common/util/random'
@@ -43,16 +41,7 @@ const bodySchema = z.object({
     'Close time must be in the future.'
   ),
   outcomeType: z.enum(OUTCOME_TYPES),
-  resolutionType: z.enum(RESOLUTION_TYPES),
-  automaticResolution: z.enum(RESOLUTIONS),
-  automaticResolutionTime: z.date()
-  }).refine(
-    (data) => data.automaticResolutionTime.getTime() > data.closeTime.getTime(),
-    'Resolution time must be after close time.'
-  ).refine(
-    (data) => data.resolutionType === 'MANUAL' && data.automaticResolutionTime,
-    'Time for automatic resolution specified even tho the resolution is \'MANUAL\''
-  )
+  })
 
 const binarySchema = z.object({
   initialProb: z.number().min(1).max(99),
@@ -64,7 +53,7 @@ const numericSchema = z.object({
 })
 
 export const createContract = newEndpoint(['POST'], async (req, [user, _]) => {
-  const { question, description, tags, closeTime, outcomeType, resolutionType, automaticResolution, automaticResolutionTime } = validate(
+  const { question, description, tags, closeTime, outcomeType } = validate(
     bodySchema,
     req.body
   )
@@ -75,9 +64,12 @@ export const createContract = newEndpoint(['POST'], async (req, [user, _]) => {
     if (max - min <= 0.01) throw new APIError(400, 'Invalid range.')
   }
   if (outcomeType === 'BINARY') {
-    ;({ initialProb } = validate(binarySchema, req.body))  // leading ; intentional: see abive
+    ;({ initialProb } = validate(binarySchema, req.body))  // leading ; intentional: see above
   }
 
+  const automaticResolution = outcomeType == 'BINARY' ? 'MKT' : 'CANCEL'
+  const automaticResolutionTime = closeTime.setDate(closeTime.getDate() + 7)
+
   // Uses utc time on server:
   const today = new Date()
   let freeMarketResetTime = today.setUTCHours(16, 0, 0, 0)
@@ -117,9 +109,8 @@ export const createContract = newEndpoint(['POST'], async (req, [user, _]) => {
     ante,
     closeTime.getTime(),
     tags ?? [],
-    resolutionType,
     automaticResolution,
-    automaticResolutionTime.getTime(),
+    automaticResolutionTime,
     NUMERIC_BUCKET_COUNT,
     min ?? 0,
     max ?? 0