diff --git a/packages/grant-explorer/src/features/round/ViewCartPage/RoundInCart.tsx b/packages/grant-explorer/src/features/round/ViewCartPage/RoundInCart.tsx
index 9b90841b3a..bc1c7ea2e3 100644
--- a/packages/grant-explorer/src/features/round/ViewCartPage/RoundInCart.tsx
+++ b/packages/grant-explorer/src/features/round/ViewCartPage/RoundInCart.tsx
@@ -3,6 +3,7 @@ import { CartProject, VotingToken } from "../../api/types";
 import { useRoundById } from "../../../context/RoundContext";
 import { ProjectInCart } from "./ProjectInCart";
 import {
+  DISABLED_CHAINS_FOR_ESTIMATES,
   matchingEstimatesToText,
   useMatchingEstimates,
 } from "../../../hooks/matchingEstimate";
@@ -36,7 +37,7 @@ export function RoundInCart(
   );
 
   const {
-    data: matchingEstimates,
+    data,
     error: matchingEstimateError,
     isLoading: matchingEstimateLoading,
   } = useMatchingEstimates([
@@ -58,6 +59,11 @@ export function RoundInCart(
     },
   ]);
 
+  const matchingEstimates = DISABLED_CHAINS_FOR_ESTIMATES.includes(
+    props.roundCart[0]?.chainId
+  )
+    ? undefined
+    : data;
   const estimateText = matchingEstimatesToText(matchingEstimates);
 
   const { passportColor } = usePassport({
diff --git a/packages/grant-explorer/src/hooks/matchingEstimate.ts b/packages/grant-explorer/src/hooks/matchingEstimate.ts
index 34caa2eb6f..40c29ec07d 100644
--- a/packages/grant-explorer/src/hooks/matchingEstimate.ts
+++ b/packages/grant-explorer/src/hooks/matchingEstimate.ts
@@ -64,6 +64,8 @@ function getMatchingEstimates(
   ).then((r) => r.json());
 }
 
+export const DISABLED_CHAINS_FOR_ESTIMATES = [ChainId.POLYGON];
+
 /**
  * Fetches matching estimates for the given rounds, given potential votes, as an array
  * For a single round, pass in an array with a single element
@@ -71,7 +73,13 @@ function getMatchingEstimates(
 export function useMatchingEstimates(params: UseMatchingEstimatesParams[]) {
   const shouldFetch = params.every((param) => param.roundId !== zeroAddress);
   return useSWRImmutable(shouldFetch ? params : null, (params) =>
-    Promise.all(params.map((params) => getMatchingEstimates(params)))
+    Promise.all(
+      params
+        .filter(
+          (param) => !DISABLED_CHAINS_FOR_ESTIMATES.includes(param.chainId)
+        )
+        .map((params) => getMatchingEstimates(params))
+    )
   );
 }