diff --git a/times.proto b/times.proto
index b9cfddf..514dd53 100644
--- a/times.proto
+++ b/times.proto
@@ -16,6 +16,7 @@ service TimesService {
   rpc List(ListRequest) returns (TimeList);
   rpc ListWr(WrListRequest) returns (TimeList);
   rpc Rank(IdMessage) returns (RankResponse);
+  rpc RankBatch(IdListMessage) returns (RankListResponse);
 }
 
 message TimeRequest {
@@ -56,13 +57,22 @@ message IdMessage {
   int64 ID = 1;
 }
 
+message IdListMessage {
+  repeated int64 ID = 1;
+}
+
 message TimeList {
   repeated TimeResponse Times = 1;
   int64 Total = 2;
 }
 
+message RankListResponse {
+  repeated RankResponse = 1;
+}
+
 message RankResponse {
   int64 Rank = 1;
+  int64 ID = 2;
 }
 
 message ListRequest {