diff --git a/php/inc_fx_promoteur.php b/php/inc_fx_promoteur.php
index 7b2c698..d2cb64e 100644
--- a/php/inc_fx_promoteur.php
+++ b/php/inc_fx_promoteur.php
@@ -2771,26 +2771,51 @@ function fxBibMsg($clef, ...$args) {
     return $str;
 }
 
-/** Nom affichable d'une épreuve (bib v4) — langue courante avec repli fr/en. */
+/** Description d'une épreuve en conflit : type + catégorie (langue courante), (inactive) si epr_actif = 0. */
 function fxBibEpreuveDisplayName(array $row, $strLangue = 'fr') {
     $strLangue = in_array($strLangue, ['fr', 'en'], true) ? $strLangue : 'fr';
     $strAlt = $strLangue === 'fr' ? 'en' : 'fr';
 
-    foreach (['epr_nom_', 'epr_type_', 'epr_categorie_'] as $prefix) {
-        $str = trim($row[$prefix . $strLangue] ?? '');
-        if ($str === '') {
-            $str = trim($row[$prefix . $strAlt] ?? '');
+    $strType = trim($row['epr_type_' . $strLangue] ?? '');
+    if ($strType === '') {
+        $strType = trim($row['epr_type_' . $strAlt] ?? '');
+    }
+
+    $strCat = trim($row['epr_categorie_' . $strLangue] ?? '');
+    if ($strCat === '') {
+        $strCat = trim($row['epr_categorie_' . $strAlt] ?? '');
+    }
+
+    $parts = [];
+    if ($strType !== '') {
+        $parts[] = $strType;
+    }
+    if ($strCat !== '') {
+        $parts[] = $strCat;
+    }
+
+    $str = implode(' ', $parts);
+
+    if ($str === '') {
+        $strNom = trim($row['epr_nom_' . $strLangue] ?? '');
+        if ($strNom === '') {
+            $strNom = trim($row['epr_nom_' . $strAlt] ?? '');
         }
-        if ($str !== '') {
-            return $str;
+        $str = $strNom;
+    }
+
+    if ($str === '' && !empty($row['epr_id'])) {
+        $str = '#' . (int)$row['epr_id'];
+    }
+
+    if ((int)($row['epr_actif'] ?? 1) === 0) {
+        $strInactive = trim(fxBibTexte('bib_v4_ajax_overlap_inactive', 0));
+        if ($strInactive !== '' && $strInactive !== 'bib_v4_ajax_overlap_inactive') {
+            $str .= ' (' . $strInactive . ')';
         }
     }
 
-    if (!empty($row['epr_id'])) {
-        return '#' . (int)$row['epr_id'];
-    }
-
-    return '';
+    return $str;
 }
 
 /**
@@ -2822,7 +2847,8 @@ function fxBibGetOverlappingRanges($eve_id, $start, $end, $exclude_bib_id = 0) {
             e.epr_type_fr,
             e.epr_type_en,
             e.epr_categorie_fr,
-            e.epr_categorie_en
+            e.epr_categorie_en,
+            e.epr_actif
         FROM inscriptions_epreuves_bib b
         INNER JOIN inscriptions_epreuves e ON e.epr_id = b.epr_id
         WHERE b.eve_id = $eve_id
diff --git a/sql/MSIN-4379-bib_v4-etape4-ajax.sql b/sql/MSIN-4379-bib_v4-etape4-ajax.sql
index f81d2a6..d2a119e 100644
--- a/sql/MSIN-4379-bib_v4-etape4-ajax.sql
+++ b/sql/MSIN-4379-bib_v4-etape4-ajax.sql
@@ -73,6 +73,14 @@ INSERT INTO info (info_clef, info_langue, info_texte, info_aide, info_prg, info_
 SELECT 'bib_v4_ajax_overlap_entry', 'en', '« %s » (%d to %d)', '', 'compte.php', '', 0, 1, '', '', '', NOW()
 FROM DUAL WHERE NOT EXISTS (SELECT 1 FROM info WHERE info_clef = 'bib_v4_ajax_overlap_entry' AND info_langue = 'en' AND info_prg = 'compte.php');
 
+INSERT INTO info (info_clef, info_langue, info_texte, info_aide, info_prg, info_description, info_trie, info_actif, info_option1, info_option2, info_option3, info_creation)
+SELECT 'bib_v4_ajax_overlap_inactive', 'fr', 'épreuve inactive', '', 'compte.php', '', 0, 1, '', '', '', NOW()
+FROM DUAL WHERE NOT EXISTS (SELECT 1 FROM info WHERE info_clef = 'bib_v4_ajax_overlap_inactive' AND info_langue = 'fr' AND info_prg = 'compte.php');
+
+INSERT INTO info (info_clef, info_langue, info_texte, info_aide, info_prg, info_description, info_trie, info_actif, info_option1, info_option2, info_option3, info_creation)
+SELECT 'bib_v4_ajax_overlap_inactive', 'en', 'inactive race', '', 'compte.php', '', 0, 1, '', '', '', NOW()
+FROM DUAL WHERE NOT EXISTS (SELECT 1 FROM info WHERE info_clef = 'bib_v4_ajax_overlap_inactive' AND info_langue = 'en' AND info_prg = 'compte.php');
+
 INSERT INTO info (info_clef, info_langue, info_texte, info_aide, info_prg, info_description, info_trie, info_actif, info_option1, info_option2, info_option3, info_creation)
 SELECT 'bib_v4_ajax_params_invalid', 'fr', 'Paramètres invalides', '', 'compte.php', '', 0, 1, '', '', '', NOW()
 FROM DUAL WHERE NOT EXISTS (SELECT 1 FROM info WHERE info_clef = 'bib_v4_ajax_params_invalid' AND info_langue = 'fr' AND info_prg = 'compte.php');
diff --git a/sql/MSIN-4379-bib_v4-overlap-detail.sql b/sql/MSIN-4379-bib_v4-overlap-detail.sql
index 06ba579..954aa9e 100644
--- a/sql/MSIN-4379-bib_v4-overlap-detail.sql
+++ b/sql/MSIN-4379-bib_v4-overlap-detail.sql
@@ -22,3 +22,11 @@ FROM DUAL WHERE NOT EXISTS (SELECT 1 FROM info WHERE info_clef = 'bib_v4_ajax_ov
 INSERT INTO info (info_clef, info_langue, info_texte, info_aide, info_prg, info_description, info_trie, info_actif, info_option1, info_option2, info_option3, info_creation)
 SELECT 'bib_v4_ajax_overlap_entry', 'en', '« %s » (%d to %d)', '', 'compte.php', '', 0, 1, '', '', '', NOW()
 FROM DUAL WHERE NOT EXISTS (SELECT 1 FROM info WHERE info_clef = 'bib_v4_ajax_overlap_entry' AND info_langue = 'en' AND info_prg = 'compte.php');
+
+INSERT INTO info (info_clef, info_langue, info_texte, info_aide, info_prg, info_description, info_trie, info_actif, info_option1, info_option2, info_option3, info_creation)
+SELECT 'bib_v4_ajax_overlap_inactive', 'fr', 'épreuve inactive', '', 'compte.php', '', 0, 1, '', '', '', NOW()
+FROM DUAL WHERE NOT EXISTS (SELECT 1 FROM info WHERE info_clef = 'bib_v4_ajax_overlap_inactive' AND info_langue = 'fr' AND info_prg = 'compte.php');
+
+INSERT INTO info (info_clef, info_langue, info_texte, info_aide, info_prg, info_description, info_trie, info_actif, info_option1, info_option2, info_option3, info_creation)
+SELECT 'bib_v4_ajax_overlap_inactive', 'en', 'inactive race', '', 'compte.php', '', 0, 1, '', '', '', NOW()
+FROM DUAL WHERE NOT EXISTS (SELECT 1 FROM info WHERE info_clef = 'bib_v4_ajax_overlap_inactive' AND info_langue = 'en' AND info_prg = 'compte.php');