diff --git a/src/runtime/proc.go b/src/runtime/proc.go
index 55023e3f9f..197441dfa7 100644
--- a/src/runtime/proc.go
+++ b/src/runtime/proc.go
@@ -5994,14 +5994,12 @@ func runqputbatch(pp *p, q *gQueue, qsize int) {
 // Executed only by the owner P.
 func runqget(_p_ *p) (gp *g, inheritTime bool) {
 	// If there's a runnext, it's the next G to run.
-	for {
-		next := _p_.runnext
-		if next == 0 {
-			break
-		}
-		if _p_.runnext.cas(next, 0) {
-			return next.ptr(), true
-		}
+	next := _p_.runnext
+	// If the runnext is non-0 and the CAS fails, it could only have been stolen by another P,
+	// because other Ps can race to set runnext to 0, but only the current P can set it to non-0.
+	// Hence, there's no need to retry this CAS if it falls.
+	if next != 0 && _p_.runnext.cas(next, 0) {
+		return next.ptr(), true
 	}
 
 	for {