diff --git a/web/components/challenges/create-challenge-modal.tsx b/web/components/challenges/create-challenge-modal.tsx
index eca50f27..e93ec314 100644
--- a/web/components/challenges/create-challenge-modal.tsx
+++ b/web/components/challenges/create-challenge-modal.tsx
@@ -19,6 +19,7 @@ import { QRCode } from '../qr-code'
 import { copyToClipboard } from 'web/lib/util/copy'
 import { AmountInput } from '../amount-input'
 import { getProbability } from 'common/calculate'
+import { track } from 'web/lib/service/analytics'
 
 type challengeInfo = {
   amount: number
@@ -55,7 +56,14 @@ export function CreateChallengeModal(props: {
                 outcome: newChallenge.outcome,
                 contract: contract,
               })
-              challenge && setChallengeSlug(getChallengeUrl(challenge))
+              if (challenge) {
+                setChallengeSlug(getChallengeUrl(challenge))
+                track('challenge created', {
+                  creator: user.username,
+                  amount: newChallenge.amount,
+                  contractId: contract.id,
+                })
+              }
             }}
             challengeSlug={challengeSlug}
           />
diff --git a/web/components/contract/share-row.tsx b/web/components/contract/share-row.tsx
index fa86094f..9c8c1573 100644
--- a/web/components/contract/share-row.tsx
+++ b/web/components/contract/share-row.tsx
@@ -9,6 +9,7 @@ import { CreateChallengeModal } from '../challenges/create-challenge-modal'
 import { User } from 'common/user'
 import { CHALLENGES_ENABLED } from 'common/challenge'
 import { ShareModal } from './share-modal'
+import { withTracking } from 'web/lib/service/analytics'
 
 export function ShareRow(props: {
   contract: Contract
@@ -47,7 +48,10 @@ export function ShareRow(props: {
         <Button
           size="lg"
           color="gray-white"
-          onClick={() => setIsOpen(true)}
+          onClick={withTracking(
+            () => setIsOpen(true),
+            'click challenge button'
+          )}
           className="animate-bounce"
         >
           ⚔️ Challenge