diff --git a/src/__tests__/ticks.ts b/src/__tests__/ticks.ts
index acdc3abb..728a25e4 100644
--- a/src/__tests__/ticks.ts
+++ b/src/__tests__/ticks.ts
@@ -4,6 +4,9 @@ import { jest } from '@jest/globals'
 import { queryAPI, setUpServer } from '../utils/testUtils.js'
 import { muuidToString } from '../utils/helpers.js'
 import { TickInput } from '../db/TickTypes.js'
+import TickDataSource from '../model/TickDataSource.js'
+import UserDataSource from '../model/UserDataSource.js'
+import { UpdateProfileGQLInput } from '../db/UserTypes.js'
 
 jest.setTimeout(60000)
 
@@ -14,13 +17,13 @@ describe('ticks API', () => {
   let inMemoryDB
 
   // Mongoose models for mocking pre-existing state.
+  let ticks: TickDataSource
+  let users: UserDataSource
   let tickOne: TickInput
 
   beforeAll(async () => {
     ({ server, inMemoryDB } = await setUpServer())
-    // Auth0 serializes uuids in "relaxed" mode, resulting in this hex string format
-    // "59f1d95a-627d-4b8c-91b9-389c7424cb54" instead of base64 "WfHZWmJ9S4yRuTicdCTLVA==".
-    user = muuid.mode('relaxed').v4()
+    user = muuid.v4()
     userUuid = muuidToString(user)
 
     tickOne = {
@@ -37,6 +40,8 @@ describe('ticks API', () => {
   })
 
   beforeEach(async () => {
+    ticks = TickDataSource.getInstance()
+    users = UserDataSource.getInstance()
     await inMemoryDB.clear()
   })
 
@@ -45,6 +50,62 @@ describe('ticks API', () => {
     await inMemoryDB.close()
   })
 
+  describe('queries', () => {
+    const userQuery = `
+      query userTicks($userId: MUUID, $username: String) {
+        userTicks(userId: $userId, username: $username) {
+          _id
+          name
+          notes
+          climbId
+          style
+          attemptType
+          dateClimbed
+          grade
+          userId
+        }
+      }
+    `
+
+    it('queries by userId', async () => {
+      const userProfileInput: UpdateProfileGQLInput = {
+        userUuid,
+        username: 'cat.dog',
+        email: 'cat@example.com'
+      }
+      await users.createOrUpdateUserProfile(user, userProfileInput)
+      await ticks.addTick(tickOne)
+      const response = await queryAPI({
+        query: userQuery,
+        variables: { userId: userUuid },
+        userUuid
+      })
+      expect(response.statusCode).toBe(200)
+      const res = response.body.data.userTicks
+      expect(res).toHaveLength(1)
+      expect(res[0].name).toBe(tickOne.name)
+    })
+
+    it('queries by username', async () => {
+      const userProfileInput: UpdateProfileGQLInput = {
+        userUuid,
+        username: 'cat.dog',
+        email: 'cat@example.com'
+      }
+      await users.createOrUpdateUserProfile(user, userProfileInput)
+      await ticks.addTick(tickOne)
+      const response = await queryAPI({
+        query: userQuery,
+        variables: { username: 'cat.dog' },
+        userUuid
+      })
+      expect(response.statusCode).toBe(200)
+      const res = response.body.data.userTicks
+      expect(res).toHaveLength(1)
+      expect(res[0].name).toBe(tickOne.name)
+    })
+  })
+
   describe('mutations', () => {
     const createQuery = `
       mutation ($input: Tick!) {
diff --git a/src/auth/middleware.ts b/src/auth/middleware.ts
index 93edba40..af81045c 100644
--- a/src/auth/middleware.ts
+++ b/src/auth/middleware.ts
@@ -24,7 +24,7 @@ export const createContext = async ({ req }): Promise<any> => {
       payload = await verifyJWT(token)
     } catch (e) {
       logger.error(`Can't verify JWT token ${e.toString() as string}`)
-      throw new Error('An unxpected error has occurred.  Please notify us at support@openbeta.io.')
+      throw new Error('An unexpected error has occurred.  Please notify us at support@openbeta.io.')
     }
 
     user.isBuilder = payload?.scope?.includes('builder:default') ?? false
diff --git a/src/db/TickTypes.ts b/src/db/TickTypes.ts
index 15b3101a..f2eb37ab 100644
--- a/src/db/TickTypes.ts
+++ b/src/db/TickTypes.ts
@@ -1,4 +1,5 @@
 import mongoose from 'mongoose'
+import { MUUID } from 'uuid-mongodb'
 
 /**
  * Ticks may be sourced from a number of places. They may come from external sources,
@@ -101,3 +102,8 @@ export interface TickInput {
 export interface TickEditFilterType {
   _id: mongoose.Types.ObjectId
 }
+
+export interface TickUserSelectors {
+  userId?: MUUID
+  username?: string
+}
diff --git a/src/db/utils/jobs/migration/CreateUsersCollection.ts b/src/db/utils/jobs/migration/CreateUsersCollection.ts
index a74a2673..3f19854e 100644
--- a/src/db/utils/jobs/migration/CreateUsersCollection.ts
+++ b/src/db/utils/jobs/migration/CreateUsersCollection.ts
@@ -8,7 +8,7 @@ import type { User as Auth0User } from 'auth0'
 import { connectDB, gracefulExit, getUserModel } from '../../../index.js'
 import { logger } from '../../../../logger.js'
 import { User, UpdateProfileGQLInput } from '../../../UserTypes.js'
-import { nonAlphanumericRegex } from '../../../../model/UserDataSource.js'
+import { canonicalizeUsername } from '../../../../utils/helpers.js'
 
 const LOCAL_MEDIA_DIR_UID = process.env.LOCAL_MEDIA_DIR_UID
 
@@ -56,7 +56,7 @@ const onConnected = async (): Promise<void> => {
       avatar,
       usernameInfo: {
         username,
-        canonicalName: username.replaceAll(nonAlphanumericRegex, ''),
+        canonicalName: canonicalizeUsername(username),
         updatedAt: new Date(ts)
       },
       createdBy: userUuid
diff --git a/src/graphql/schema/Tick.gql b/src/graphql/schema/Tick.gql
index e7322a84..b03b8649 100644
--- a/src/graphql/schema/Tick.gql
+++ b/src/graphql/schema/Tick.gql
@@ -1,8 +1,8 @@
 type Query {
   """
-  Gets all of the users current ticks by their Auth-0 userId
+  Gets all of the users current ticks by their Auth-0 userId or username
   """
-  userTicks(userId: String): [TickType]
+  userTicks(userId: MUUID, username: String): [TickType]
   """
   Gets all of the users current ticks for a specific climb by their
   Auth-0 userId and Open-Beta ClimbId
diff --git a/src/graphql/tick/TickQueries.ts b/src/graphql/tick/TickQueries.ts
index 3e141604..f4352d96 100644
--- a/src/graphql/tick/TickQueries.ts
+++ b/src/graphql/tick/TickQueries.ts
@@ -1,16 +1,15 @@
-import { TickType } from '../../db/TickTypes'
+import { TickType, TickUserSelectors } from '../../db/TickTypes'
 import type TickDataSource from '../../model/TickDataSource'
 
 const TickQueries = {
-  userTicks: async (_, input, { dataSources }): Promise<TickType[] | null> => {
+  userTicks: async (_, input: TickUserSelectors, { dataSources }): Promise<TickType[] | null> => {
     const { ticks }: { ticks: TickDataSource } = dataSources
-    const { userId } = input
-    return await ticks.ticksByUser(userId)
+    return await ticks.ticksByUser(input)
   },
   userTicksByClimbId: async (_, input, { dataSources }): Promise<TickType[] | null> => {
     const { ticks }: { ticks: TickDataSource } = dataSources
     const { climbId, userId } = input
-    return await ticks.ticksByUserAndClimb(userId, climbId)
+    return await ticks.ticksByUserIdAndClimb(userId, climbId)
   }
 }
 
diff --git a/src/model/TickDataSource.ts b/src/model/TickDataSource.ts
index 027976aa..b546ebd4 100644
--- a/src/model/TickDataSource.ts
+++ b/src/model/TickDataSource.ts
@@ -2,11 +2,13 @@ import { MongoDataSource } from 'apollo-datasource-mongodb'
 import type { DeleteResult } from 'mongodb'
 import mongoose from 'mongoose'
 
-import { TickEditFilterType, TickInput, TickType } from '../db/TickTypes'
-import { getTickModel } from '../db/index.js'
+import { TickEditFilterType, TickInput, TickType, TickUserSelectors } from '../db/TickTypes'
+import { getTickModel, getUserModel } from '../db/index.js'
+import type { User } from '../db/UserTypes'
 
 export default class TickDataSource extends MongoDataSource<TickType> {
   tickModel = getTickModel()
+  userModel = getUserModel()
 
   /**
    * @param tick takes in a new tick
@@ -71,11 +73,39 @@ export default class TickDataSource extends MongoDataSource<TickType> {
     }
   }
 
-  async ticksByUser (userId: string): Promise<TickType[]> {
-    return await this.tickModel.find({ userId })
+  /**
+   * Retrieve ticks of a user given their details
+   * @param userSelectors Attributes that can be used to identify the user
+   * @returns
+   */
+  async ticksByUser (userSelectors: TickUserSelectors): Promise<TickType[]> {
+    const { userId: requestedUserId, username } = userSelectors
+    if (requestedUserId == null && username == null) {
+      throw new Error('Username or userId must be supplied')
+    }
+    const filters: any[] = []
+    if (requestedUserId != null) {
+      filters.push({ _id: requestedUserId })
+    }
+    if (username != null) {
+      filters.push({
+        'usernameInfo.username': {
+          $exists: true, $eq: username
+        }
+      })
+    }
+    const userIdObject = await this.userModel.findOne<Pick<User, '_id'>>(
+      { $or: filters },
+      { _id: 1 }
+    ).lean()
+    if (userIdObject == null) {
+      throw new Error('No such user')
+    }
+    // Unfortunately, userIds on ticks are stored as strings not MUUIDs.
+    return await this.tickModel.find({ userId: userIdObject._id.toUUID().toString() })
   }
 
-  async ticksByUserAndClimb (userId: string, climbId: string): Promise<TickType[]> {
+  async ticksByUserIdAndClimb (userId: string, climbId: string): Promise<TickType[]> {
     return await this.tickModel.find({ userId, climbId })
   }
 
diff --git a/src/model/UserDataSource.ts b/src/model/UserDataSource.ts
index 57e015ea..b4848f86 100644
--- a/src/model/UserDataSource.ts
+++ b/src/model/UserDataSource.ts
@@ -12,11 +12,10 @@ import {
   UserPublicProfile
 } from '../db/UserTypes.js'
 import { trimToNull } from '../utils/sanitize.js'
+import { canonicalizeUsername } from '../utils/helpers.js'
 
 const USERNAME_UPDATE_WAITING_IN_DAYS = 14
 
-export const nonAlphanumericRegex = /[\W_\s]+/g
-
 export default class UserDataSource extends MongoDataSource<User> {
   static PUBLIC_PROFILE_PROJECTION = {
     _id: 1,
@@ -44,7 +43,7 @@ export default class UserDataSource extends MongoDataSource<User> {
       const rs = await this.userModel.find(
         {
           'usernameInfo.canonicalName': {
-            $exists: true, $eq: _username.replaceAll(nonAlphanumericRegex, '')
+            $exists: true, $eq: canonicalizeUsername(_username)
           }
         },
         {
@@ -119,7 +118,7 @@ export default class UserDataSource extends MongoDataSource<User> {
       if (username != null) {
         usernameInfo = {
           username,
-          canonicalName: username.replaceAll(nonAlphanumericRegex, ''),
+          canonicalName: canonicalizeUsername(username),
           updatedAt: new Date()
         }
       }
@@ -155,7 +154,7 @@ export default class UserDataSource extends MongoDataSource<User> {
       }
 
       rs.set('usernameInfo.username', username)
-      rs.set('usernameInfo.canonicalName', username.replaceAll(nonAlphanumericRegex, ''))
+      rs.set('usernameInfo.canonicalName', canonicalizeUsername(username))
     }
 
     if (displayName != null && displayName !== rs.displayName) {
diff --git a/src/model/__tests__/ticks.ts b/src/model/__tests__/ticks.ts
index 19c7ad6a..5b719944 100644
--- a/src/model/__tests__/ticks.ts
+++ b/src/model/__tests__/ticks.ts
@@ -1,14 +1,19 @@
 import mongoose from 'mongoose'
 import { produce } from 'immer'
 import TickDataSource from '../TickDataSource.js'
-import { connectDB, getTickModel } from '../../db/index.js'
+import { connectDB, getTickModel, getUserModel } from '../../db/index.js'
 import { TickInput } from '../../db/TickTypes.js'
+import muuid from 'uuid-mongodb'
+import UserDataSource from '../UserDataSource.js'
+import { UpdateProfileGQLInput } from '../../db/UserTypes.js'
+
+const userId = muuid.v4()
 
 const toTest: TickInput = {
   name: 'Small Dog',
   notes: 'Sandbagged',
   climbId: 'c76d2083-6b8f-524a-8fb8-76e1dc79833f',
-  userId: 'abc123',
+  userId: userId.toUUID().toString(),
   style: 'Lead',
   attemptType: 'Onsight',
   dateClimbed: new Date('2012-12-12'),
@@ -20,7 +25,7 @@ const toTest2: TickInput = {
   name: 'Sloppy Peaches',
   notes: 'v sloppy',
   climbId: 'b767d949-0daf-5af3-b1f1-626de8c84b2a',
-  userId: 'abc123',
+  userId: userId.toUUID().toString(),
   style: 'Lead',
   attemptType: 'Flash',
   dateClimbed: new Date('2012-10-15'),
@@ -42,17 +47,21 @@ describe('Ticks', () => {
   let ticks: TickDataSource
   const tickModel = getTickModel()
 
+  let users: UserDataSource
+
   beforeAll(async () => {
     console.log('#BeforeAll Ticks')
     await connectDB()
 
     try {
       await getTickModel().collection.drop()
+      await getUserModel().collection.drop()
     } catch (e) {
       console.log('Cleaning db')
     }
 
-    ticks = new TickDataSource(mongoose.connection.db.collection('ticks'))
+    ticks = TickDataSource.getInstance()
+    users = UserDataSource.getInstance()
   })
 
   afterAll(async () => {
@@ -122,13 +131,19 @@ describe('Ticks', () => {
   })
 
   it('should grab all ticks by userId', async () => {
+    const userProfileInput: UpdateProfileGQLInput = {
+      userUuid: userId.toUUID().toString(),
+      username: 'cat.dog',
+      email: 'cat@example.com'
+    }
+    await users.createOrUpdateUserProfile(userId, userProfileInput)
     const tick = await ticks.addTick(toTest)
 
     if (tick == null) {
       fail('Should add a new tick')
     }
 
-    const newTicks = await ticks.ticksByUser('abc123')
+    const newTicks = await ticks.ticksByUser({ userId })
 
     expect(newTicks.length).toEqual(1)
   })
@@ -141,25 +156,23 @@ describe('Ticks', () => {
     if (tick == null || tick2 == null) {
       fail('Should add a new tick')
     }
-    const userClimbTicks = await ticks.ticksByUserAndClimb('abc123', climbId)
+    const userClimbTicks = await ticks.ticksByUserIdAndClimb(userId.toUUID().toString(), climbId)
     expect(userClimbTicks.length).toEqual(1)
   })
 
   it('should delete all ticks with the specified userId', async () => {
-    const userId = 'abc123'
     const newTicks = await ticks.importTicks(testImport)
 
     if (newTicks == null) {
       fail('Should add 3 new ticks')
     }
 
-    await ticks.deleteAllTicks(userId)
+    await ticks.deleteAllTicks(userId.toUUID().toString())
     const newTick = await tickModel.findOne({ userId })
     expect(newTick).toBeNull()
   })
 
   it('should only delete MP imports', async () => {
-    const userId = 'abc123'
     const MPTick = await ticks.addTick(toTest)
     const OBTick = await ticks.addTick(tickUpdate)
 
@@ -167,7 +180,7 @@ describe('Ticks', () => {
       fail('Should add two new ticks')
     }
 
-    await ticks.deleteImportedTicks(userId)
+    await ticks.deleteImportedTicks(userId.toUUID().toString())
     const newTick = await tickModel.findOne({ _id: OBTick._id })
     expect(newTick?._id).toEqual(OBTick._id)
     expect(newTick?.notes).toEqual('Not sandbagged')
diff --git a/src/utils/helpers.ts b/src/utils/helpers.ts
index 55ecd369..2af4a6e8 100644
--- a/src/utils/helpers.ts
+++ b/src/utils/helpers.ts
@@ -21,3 +21,6 @@ export function exhaustiveCheck (_value: never): never {
 
 export const geojsonPointToLongitude = (point: Point): number => point.coordinates[0]
 export const geojsonPointToLatitude = (point: Point): number => point.coordinates[1]
+
+export const NON_ALPHANUMERIC_REGEX = /[\W_\s]+/g
+export const canonicalizeUsername = (username: string): string => username.replaceAll(NON_ALPHANUMERIC_REGEX, '')