diff --git a/dashboard/builders.go b/dashboard/builders.go
index 89c42214..f1d32239 100644
--- a/dashboard/builders.go
+++ b/dashboard/builders.go
@@ -2833,8 +2833,10 @@ func init() {
 		},
 		buildsRepo: func(repo, branch, goBranch string) bool {
 			switch repo {
-			case "go", "net", "sys":
-				return branch == "master" && goBranch == "master"
+			case "go":
+				return atLeastGo1(goBranch, 19)
+			case "net", "sys":
+				return branch == "master" && atLeastGo1(goBranch, 19)
 			default:
 				return false
 			}
diff --git a/dashboard/builders_test.go b/dashboard/builders_test.go
index baff4184..8e3f69f2 100644
--- a/dashboard/builders_test.go
+++ b/dashboard/builders_test.go
@@ -406,7 +406,11 @@ func TestBuilderConfig(t *testing.T) {
 		{b("linux-amd64", "net"), both},
 
 		{b("linux-loong64-3a5000", "go"), onlyPost},
+		{b("linux-loong64-3a5000@go1.99", "go"), onlyPost},
+		{b("linux-loong64-3a5000@go1.18", "go"), none}, // Go 1.18 doesn't support this port.
 		{b("linux-loong64-3a5000", "sys"), onlyPost},
+		{b("linux-loong64-3a5000@go1.99", "sys"), onlyPost},
+		{b("linux-loong64-3a5000@go1.18", "sys"), none},
 		{b("linux-loong64-3a5000", "net"), onlyPost},
 
 		// OpenBSD 6.8.