{"id":348,"date":"2026-09-26T14:27:53","date_gmt":"2026-09-26T12:27:53","guid":{"rendered":"https:\/\/bankrollatlas.com\/fr\/outils\/calculateur-marge-bookmaker\/"},"modified":"2026-09-26T14:46:01","modified_gmt":"2026-09-26T12:46:01","slug":"calculateur-marge-bookmaker","status":"publish","type":"ba_tool","link":"https:\/\/bankrollatlas.com\/fr\/outils\/calculateur-marge-bookmaker\/","title":{"rendered":"Calculateur de marge et de probabilit\u00e9 implicite"},"content":{"rendered":"\n<h2 class=\"wp-block-heading\">\u00c0 quoi sert ce calculateur<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Une cote d\u00e9cimale est un prix. Son inverse donne la probabilit\u00e9 que le bookmaker attribue \u00e0 l\u2019issue. Additionnez ces probabilit\u00e9s sur toutes les issues d\u2019un march\u00e9 : le total d\u00e9passe 100 %. Cet exc\u00e9dent, c\u2019est la marge, le prix que vous payez pour parier.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Le calculateur fait ce calcul pour vous, retire la marge et donne la <em>cote juste<\/em> de chaque issue, celle qui serait affich\u00e9e sans commission.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Comment l\u2019utiliser<\/h2>\n\n\n\n<ol class=\"wp-block-list ba-steps\">\n<li><strong>Choisissez le format.<\/strong> D\u00e9cimal (1,90), fractionnel (10\/11) ou am\u00e9ricain (\u2212110).<\/li>\n\n\n<li><strong>Saisissez toutes les issues.<\/strong> Deux cotes pour un march\u00e9 sans nul (tennis, plus\/moins), trois pour un 1N2.<\/li>\n\n\n<li><strong>Lisez le r\u00e9sultat.<\/strong> La marge s\u2019affiche en haut, puis la probabilit\u00e9 implicite, la probabilit\u00e9 sans marge et la cote juste de chaque issue.<\/li>\n\n<\/ol>\n\n\n\n<h2 class=\"wp-block-heading\">La formule<\/h2>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Probabilit\u00e9 implicite = 1 \/ cote.<\/li>\n\n\n<li>Marge = somme des probabilit\u00e9s implicites \u2212 100 %.<\/li>\n\n\n<li>Probabilit\u00e9 sans marge = probabilit\u00e9 implicite \/ somme des probabilit\u00e9s.<\/li>\n\n\n<li>Cote juste = 1 \/ probabilit\u00e9 sans marge.<\/li>\n\n<\/ul>\n\n\n\n<h2 class=\"wp-block-heading\">Exemple chiffr\u00e9<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Un match de tennis est propos\u00e9 \u00e0 1,90 pour chaque joueur.<\/p>\n\n\n\n<figure class=\"wp-block-table\"><table><thead><tr><th>Joueur<\/th><th>Cote<\/th><th>Probabilit\u00e9 implicite<\/th><th>Sans marge<\/th><th>Cote juste<\/th><\/tr><\/thead><tbody><tr><td>Joueur 1<\/td><td>1,90<\/td><td>52,63 %<\/td><td>50 %<\/td><td>2,00<\/td><\/tr><tr><td>Joueur 2<\/td><td>1,90<\/td><td>52,63 %<\/td><td>50 %<\/td><td>2,00<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">La somme fait 105,26 %, soit une marge de 5,26 %. Sans commission, chaque joueur serait cot\u00e9 2,00 : c\u2019est l\u2019\u00e9cart que le bookmaker garde pour lui.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Les limites<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Le calculateur r\u00e9partit la marge proportionnellement \u00e0 chaque issue. En pratique, les bookmakers chargent souvent davantage les outsiders que les favoris : la cote juste est une estimation, pas une v\u00e9rit\u00e9. Elle reste la meilleure base pour comparer deux bookmakers ou juger si une cote vaut la peine.<\/p>\n\n\n","protected":false},"excerpt":{"rendered":"<p>Convertis des cotes en probabilit\u00e9s, mesure la marge du bookmaker et retrouve la cote juste de chaque issue.<\/p>\n","protected":false},"featured_media":0,"menu_order":1,"template":"","meta":{"ba_tool_widget":"implied","ba_tool_family":"odds","footnotes":""},"class_list":["post-348","ba_tool","type-ba_tool","status-publish","hentry"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v28.6 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Marge bookmaker et probabilit\u00e9 implicite : calculateur<\/title>\n<meta name=\"description\" content=\"Convertissez des cotes en probabilit\u00e9s implicites, mesurez la marge du bookmaker et obtenez la cote juste sans marge. 1N2, deux issues, plus\/moins. 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