diff --git a/api-webapp/src/main/kotlin/org/jeudego/pairgoth/api/StandingsHandler.kt b/api-webapp/src/main/kotlin/org/jeudego/pairgoth/api/StandingsHandler.kt
index 00f1dc9..b664685 100644
--- a/api-webapp/src/main/kotlin/org/jeudego/pairgoth/api/StandingsHandler.kt
+++ b/api-webapp/src/main/kotlin/org/jeudego/pairgoth/api/StandingsHandler.kt
@@ -29,11 +29,17 @@ object StandingsHandler: PairgothApiHandler {
             return min(max(pairable.rank, tournament.pairing.mmFloor), tournament.pairing.mmBar) + MacMahonSolver.mmsZero
         }
 
-        val historyHelper = HistoryHelper(tournament.historyBefore(round)) {
+        //  CB avoid code redundancy with solvers
+        val historyHelper = HistoryHelper(tournament.historyBefore(round + 1)) {
             if (tournament.pairing.type == PairingType.SWISS) wins
             else tournament.pairables.mapValues {
                 it.value.let {
-                    pairable -> mmBase(pairable) + ( nbW(pairable) ?: 0.0) // TODO take tournament parameter into account
+                    pairable ->
+                        mmBase(pairable) +
+                        (nbW(pairable) ?: 0.0) + // TODO take tournament parameter into account
+                        (1..round).map { round ->
+                            if (playersPerRound.getOrNull(round - 1)?.contains(pairable.id) == true) 0 else 1
+                        }.sum() * tournament.pairing.pairingParams.main.mmsValueAbsent
                 }
             }
         }
diff --git a/api-webapp/src/main/kotlin/org/jeudego/pairgoth/pairing/BasePairingHelper.kt b/api-webapp/src/main/kotlin/org/jeudego/pairgoth/pairing/BasePairingHelper.kt
index 76e4f43..cba11c2 100644
--- a/api-webapp/src/main/kotlin/org/jeudego/pairgoth/pairing/BasePairingHelper.kt
+++ b/api-webapp/src/main/kotlin/org/jeudego/pairgoth/pairing/BasePairingHelper.kt
@@ -90,7 +90,7 @@ abstract class BasePairingHelper(
     val Pairable.sodos: Double get() = historyHelper.sodos[id] ?: 0.0
     val Pairable.cums: Double get() = historyHelper.cumScore[id] ?: 0.0
     fun Pairable.missedRounds(upToRound: Int): Int = (1..upToRound).map { round ->
-        if (historyHelper.playersPerRound.getOrNull(round)?.contains(id) == true) 0 else 1
+        if (historyHelper.playersPerRound.getOrNull(round - 1)?.contains(id) == true) 0 else 1
     }.sum()
     fun Pairable.eval(criterion: Criterion) = evalCriterion(this, criterion)
     open fun evalCriterion(pairable: Pairable, criterion: Criterion) = when (criterion) {
diff --git a/api-webapp/src/main/kotlin/org/jeudego/pairgoth/pairing/HistoryHelper.kt b/api-webapp/src/main/kotlin/org/jeudego/pairgoth/pairing/HistoryHelper.kt
index 44de378..ce9959d 100644
--- a/api-webapp/src/main/kotlin/org/jeudego/pairgoth/pairing/HistoryHelper.kt
+++ b/api-webapp/src/main/kotlin/org/jeudego/pairgoth/pairing/HistoryHelper.kt
@@ -61,11 +61,13 @@ open class HistoryHelper(protected val history: List<List<Game>>, scoresGetter:
     }
 
     // Set of all implied players for each round
-    val playersPerRound = history.map {
-        it.fold(mutableSetOf<ID>()) { acc, next ->
-            acc.add(next.white)
-            acc.add(next.black)
-            acc
+    val playersPerRound: List<Set<ID>> by lazy {
+        history.map {
+            it.fold(mutableSetOf<ID>()) { acc, next ->
+                acc.add(next.white)
+                acc.add(next.black)
+                acc
+            }
         }
     }
 
diff --git a/view-webapp/src/main/webapp/WEB-INF/translations/fr b/view-webapp/src/main/webapp/WEB-INF/translations/fr
index 25237ca..77105d0 100644
--- a/view-webapp/src/main/webapp/WEB-INF/translations/fr
+++ b/view-webapp/src/main/webapp/WEB-INF/translations/fr
@@ -69,7 +69,7 @@ MacMahon	MacMahon
 Main time	Temps principal
 Max time	Temps max
 Name	Nom
-Nbw	Nbv
+Nbw	NbV
 New Tournament	Nouveau Tournoi
 New tournament	Nouveau tournoi
 Next rounds seeding	Méthode rondes suivantes