diff --git a/app/controllers/Puzzle.scala b/app/controllers/Puzzle.scala
index 837b88ad7a7fc..d98c2ac89bd59 100644
--- a/app/controllers/Puzzle.scala
+++ b/app/controllers/Puzzle.scala
@@ -199,7 +199,7 @@ final class Puzzle(env: Env, apiC: => Api) extends LilaController(env):
                                     case Some((puzzle, replay)) =>
                                       renderJson(puzzle, angle, replay.some) map { nextJson =>
                                         Json.obj(
-                                          "round" -> env.puzzle.jsonView.roundJson(me, round, perf),
+                                          "round" -> env.puzzle.jsonView.roundJson.web(me, round, perf),
                                           "next"  -> nextJson
                                         )
                                       }
@@ -210,7 +210,7 @@ final class Puzzle(env: Env, apiC: => Api) extends LilaController(env):
                                   next     <- nextPuzzleForMe(angle, none)
                                   nextJson <- next.?? { renderJson(_, angle, none, newUser.some) dmap some }
                                 yield Json.obj(
-                                  "round" -> env.puzzle.jsonView.roundJson(me, round, perf),
+                                  "round" -> env.puzzle.jsonView.roundJson.web(me, round, perf),
                                   "next"  -> nextJson
                                 )
                             }
@@ -449,15 +449,13 @@ final class Puzzle(env: Env, apiC: => Api) extends LilaController(env):
     }
 
   def apiBatchSelect(angleStr: String) = AnonOrScoped(_.Puzzle.Read) { implicit req => me =>
-    batchSelect(me, PuzzleAngle findOrMix angleStr, reqDifficulty, getInt("nb", req) | 15)
+    batchSelect(me, PuzzleAngle findOrMix angleStr, reqDifficulty, getInt("nb", req) | 15).dmap(Ok.apply)
   }
 
   private def reqDifficulty(using req: RequestHeader) = PuzzleDifficulty.orDefault(~get("difficulty", req))
-  private def batchSelect(me: Option[UserModel], angle: PuzzleAngle, difficulty: PuzzleDifficulty, nb: Int)(
-      using req: RequestHeader
-  ): Fu[Result] =
-    env.puzzle.batch.nextFor(me, angle, difficulty, nb atLeast 1 atMost 50) flatMap
-      env.puzzle.jsonView.batch dmap { Ok(_) }
+  private def batchSelect(me: Option[UserModel], angle: PuzzleAngle, difficulty: PuzzleDifficulty, nb: Int) =
+    env.puzzle.batch.nextFor(me, angle, difficulty, nb atMost 50) flatMap
+      env.puzzle.jsonView.batch(me)
 
   def apiBatchSolve(angleStr: String) = AnonOrScopedBody(parse.json)(_.Puzzle.Write) { implicit req => me =>
     req.body
@@ -466,19 +464,18 @@ final class Puzzle(env: Env, apiC: => Api) extends LilaController(env):
         err => BadRequest(err.toString).toFuccess,
         data => {
           val angle = PuzzleAngle findOrMix angleStr
-          {
-            me match {
+          for
+            rounds <- me match
               case Some(me) =>
-                lila.common.LilaFuture
-                  .applySequentially(data.solutions) { sol =>
-                    env.puzzle
-                      .finisher(sol.id, angle, me, sol.win, sol.mode)
-                      .void
-                  }
+                env.puzzle.finisher.batch(me, angle, data.solutions).map {
+                  _.map { (round, rDiff) => env.puzzle.jsonView.roundJson.api(round, rDiff) }
+                }
               case None =>
-                data.solutions.map { sol => env.puzzle.finisher.incPuzzlePlays(sol.id) }.parallel
-            }
-          } >> getInt("nb", req).fold(fuccess(NoContent))(batchSelect(me, angle, reqDifficulty, _)(using req))
+                data.solutions.map { sol => env.puzzle.finisher.incPuzzlePlays(sol.id) }.parallel inject Nil
+            newMe       <- me.??(env.user.repo.byId)
+            nextPuzzles <- batchSelect(newMe, angle, reqDifficulty, ~getInt("nb", req))
+            result = Json.obj("next" -> nextPuzzles, "rounds" -> rounds)
+          yield Ok(result)
         }
       )
   }
diff --git a/modules/common/src/main/LilaFuture.scala b/modules/common/src/main/LilaFuture.scala
index 76fee8bf18df4..cb3db2382fcc1 100644
--- a/modules/common/src/main/LilaFuture.scala
+++ b/modules/common/src/main/LilaFuture.scala
@@ -8,28 +8,22 @@ import lila.Lila.Fu
 
 object LilaFuture:
 
-  def fold[T, R](
-      list: List[T]
-  )(zero: R)(op: (R, T) => Fu[R])(using Executor): Fu[R] =
+  def fold[T, R](list: List[T])(acc: R)(op: (R, T) => Fu[R])(using Executor): Fu[R] =
     list match
       case head :: rest =>
-        op(zero, head) flatMap { res =>
+        op(acc, head) flatMap { res =>
           fold(rest)(res)(op)
         }
-      case Nil => fuccess(zero)
+      case Nil => fuccess(acc)
 
-  def lazyFold[T, R](
-      futures: LazyList[Fu[T]]
-  )(zero: R)(op: (R, T) => R)(using Executor): Fu[R] =
-    LazyList.cons.unapply(futures).fold(fuccess(zero)) { case (future, rest) =>
+  def lazyFold[T, R](futures: LazyList[Fu[T]])(acc: R)(op: (R, T) => R)(using Executor): Fu[R] =
+    LazyList.cons.unapply(futures).fold(fuccess(acc)) { (future, rest) =>
       future flatMap { f =>
-        lazyFold(rest)(op(zero, f))(op)
+        lazyFold(rest)(op(acc, f))(op)
       }
     }
 
-  def filter[A](
-      list: List[A]
-  )(f: A => Fu[Boolean])(using Executor): Fu[List[A]] =
+  def filter[A](list: List[A])(f: A => Fu[Boolean])(using Executor): Fu[List[A]] =
     ScalaFu
       .sequence {
         list.map { element =>
@@ -45,7 +39,7 @@ object LilaFuture:
 
   def linear[A, B, M[B] <: Iterable[B]](
       in: M[A]
-  )(f: A => Fu[B])(implicit cbf: BuildFrom[M[A], B, M[B]], ec: Executor): Fu[M[B]] =
+  )(f: A => Fu[B])(using cbf: BuildFrom[M[A], B, M[B]], ec: Executor): Fu[M[B]] =
     in.foldLeft(fuccess(cbf.newBuilder(in))) { (fr, a) =>
       fr flatMap { r =>
         f(a).dmap(r += _)
diff --git a/modules/perfStat/src/main/JsonView.scala b/modules/perfStat/src/main/JsonView.scala
index d2f97d540e4dd..f63dea5d6d7c7 100644
--- a/modules/perfStat/src/main/JsonView.scala
+++ b/modules/perfStat/src/main/JsonView.scala
@@ -44,7 +44,7 @@ final class JsonView(getLightUser: LightUser.GetterSync):
 
 object JsonView:
 
-  private def round(v: Double, depth: Int = 2) = lila.common.Maths.roundDownAt(v, depth)
+  import lila.rating.Glicko.given
 
   private val isoFormatter = ISODateTimeFormat.dateTime
   private given Writes[DateTime] = Writes { d =>
@@ -53,18 +53,11 @@ object JsonView:
   given OWrites[User] = OWrites { u =>
     Json.obj("name" -> u.username)
   }
-  given OWrites[Glicko] = OWrites { p =>
-    Json.obj(
-      "rating"      -> round(p.rating),
-      "deviation"   -> round(p.deviation),
-      "provisional" -> p.provisional
-    )
-  }
   given OWrites[Perf] = OWrites { p =>
     Json.obj("glicko" -> p.glicko, "nb" -> p.nb, "progress" -> p.progress)
   }
   private given Writes[Avg] = Writes { a =>
-    JsNumber(round(a.avg))
+    JsNumber(lila.common.Maths.roundDownAt(a.avg, 2))
   }
   given (using lang: Lang): OWrites[PerfType] = OWrites { pt =>
     Json.obj(
diff --git a/modules/puzzle/src/main/JsonView.scala b/modules/puzzle/src/main/JsonView.scala
index efaec2eaa6d82..8ff70ac2c2e7a 100644
--- a/modules/puzzle/src/main/JsonView.scala
+++ b/modules/puzzle/src/main/JsonView.scala
@@ -62,25 +62,28 @@ final class JsonView(
         "id"     -> u.id,
         "rating" -> u.perfs.puzzle.intRating
       )
-      .add(
-        "provisional" -> u.perfs.puzzle.provisional
-      )
+      .add("provisional" -> u.perfs.puzzle.provisional)
 
   private def replayJson(r: PuzzleReplay) =
     Json.obj("days" -> r.days, "i" -> r.i, "of" -> r.nb)
 
-  def roundJson(u: User, round: PuzzleRound, perf: Perf) =
-    Json
-      .obj(
-        "win"        -> round.win,
-        "ratingDiff" -> (perf.intRating.value - u.perfs.puzzle.intRating.value)
-      )
-      .add("vote" -> round.vote)
-      .add("themes" -> round.nonEmptyThemes.map { rt =>
-        JsObject(rt.map { t =>
-          t.theme.value -> JsBoolean(t.vote)
+  object roundJson {
+    def web(u: User, round: PuzzleRound, perf: Perf) =
+      base(round, IntRatingDiff(perf.intRating.value - u.perfs.puzzle.intRating.value))
+        .add("vote" -> round.vote)
+        .add("themes" -> round.nonEmptyThemes.map { rt =>
+          JsObject(rt.map { t =>
+            t.theme.value -> JsBoolean(t.vote)
+          })
         })
-      })
+
+    def api = base _
+    private def base(round: PuzzleRound, ratingDiff: IntRatingDiff) = Json.obj(
+      "id"         -> round.id.puzzleId,
+      "win"        -> round.win,
+      "ratingDiff" -> ratingDiff
+    )
+  }
 
   def pref(p: lila.pref.Pref) =
     Json.obj(
@@ -114,7 +117,7 @@ final class JsonView(
     "performance"     -> res.performance
   )
 
-  def batch(puzzles: Seq[Puzzle]): Fu[JsObject] = for {
+  def batch(user: Option[User])(puzzles: Seq[Puzzle]): Fu[JsObject] = for
     games <- gameRepo.gameOptionsFromSecondary(puzzles.map(_.gameId))
     jsons <- (puzzles zip games).collect { case (puzzle, Some(game)) =>
       gameJson.noCache(game, puzzle.initialPly) map { gameJson =>
@@ -124,7 +127,9 @@ final class JsonView(
         )
       }
     }.parallel
-  } yield Json.obj("puzzles" -> jsons)
+  yield
+    import lila.rating.Glicko.given
+    Json.obj("puzzles" -> jsons).add("glicko" -> user.map(_.perfs.puzzle.glicko))
 
   object bc:
 
diff --git a/modules/puzzle/src/main/PuzzleFinisher.scala b/modules/puzzle/src/main/PuzzleFinisher.scala
index b7ab2a62143c9..f189d6d8f752e 100644
--- a/modules/puzzle/src/main/PuzzleFinisher.scala
+++ b/modules/puzzle/src/main/PuzzleFinisher.scala
@@ -10,6 +10,7 @@ import lila.rating.{ Glicko, Perf, PerfType }
 import lila.user.{ User, UserRepo }
 import chess.Mode
 import lila.common.config.Max
+import lila.puzzle.PuzzleForm.batch.Solution
 
 final private[puzzle] class PuzzleFinisher(
     api: PuzzleApi,
@@ -27,6 +28,19 @@ final private[puzzle] class PuzzleFinisher(
     name = "puzzle.finish"
   )
 
+  def batch(me: User, angle: PuzzleAngle, solutions: List[Solution]): Fu[List[(PuzzleRound, IntRatingDiff)]] =
+    lila.common.LilaFuture
+      .fold(solutions)((me.perfs.puzzle, List.empty[(PuzzleRound, IntRatingDiff)])) {
+        case ((perf, rounds), sol) =>
+          apply(sol.id, angle, me, sol.win, sol.mode) map {
+            case Some((round, newPerf)) =>
+              val rDiff = IntRatingDiff(newPerf.intRating.value - perf.intRating.value)
+              (newPerf, (round, rDiff) :: rounds)
+            case None => (perf, rounds)
+          }
+      }
+      .map { (_, rounds) => rounds.reverse }
+
   def apply(
       id: PuzzleId,
       angle: PuzzleAngle,
diff --git a/modules/rating/src/main/Glicko.scala b/modules/rating/src/main/Glicko.scala
index 283d7e3a3050d..7b06b6209e458 100644
--- a/modules/rating/src/main/Glicko.scala
+++ b/modules/rating/src/main/Glicko.scala
@@ -113,6 +113,19 @@ case object Glicko:
         "v" -> w.double(o.volatility)
       )
 
+  import play.api.libs.json.{ OWrites, Json }
+  given OWrites[Glicko] =
+    import lila.common.Maths.roundDownAt
+    import lila.common.Json.given
+    OWrites { p =>
+      Json
+        .obj(
+          "rating"    -> roundDownAt(p.rating, 2),
+          "deviation" -> roundDownAt(p.deviation, 2)
+        )
+        .add("provisional" -> p.provisional)
+    }
+
   sealed abstract class Result:
     def negate: Result
   object Result:
diff --git a/package.json b/package.json
index 4c751d65b2db1..c0adcebc7e1e8 100644
--- a/package.json
+++ b/package.json
@@ -38,7 +38,7 @@
     "check-format": "prettier --check .",
     "lint": "eslint . --ext .ts",
     "lila-journal": "journalctl --user -fu lila -o cat",
-    "metals-log": "tail -F .metals/metals.log | rg -v '(Unmatched cancel notification|handleCancellation)' | cut -c 21-",
+    "metals-log": "tail -F .metals/metals.log | stdbuf -oL cut -c 21- | rg -v '(notification for request|handleCancellation)'",
     "serverlog": "pnpm lila-journal & pnpm metals-log",
     "multilog": "pnpm serverlog & ui/build -w"
   }