{"id":230288,"date":"2025-10-12T16:27:38","date_gmt":"2025-10-12T16:27:38","guid":{"rendered":"https:\/\/worldmarathoner.com\/?p=230288"},"modified":"2025-10-12T16:31:13","modified_gmt":"2025-10-12T16:31:13","slug":"conner-mantz-breaks-u-s-record-at-the-2025-chicago-marathon","status":"publish","type":"post","link":"https:\/\/worldmarathoner.com\/en\/conner-mantz-breaks-u-s-record-at-the-2025-chicago-marathon\/","title":{"rendered":"Conner Mantz Breaks U.S. Record at the 2025 Chicago Marathon"},"content":{"rendered":"

Conner Mantz Breaks U.S. Record at the 2025 Chicago Marathon<\/strong><\/h2>\n

On October 12, 2025, Conner Mantz achieved something extraordinary\u2014he completed the Bank of America Chicago Marathon in 2:04:43, setting a new U.S. marathon record. His performance was not only perfectly executed but also inspiring for the entire running community.<\/p>\n

Pacing Strategy \u2013 Masterful Control<\/strong><\/h4>\n

Mantz maintained a consistent pace throughout most of the race, as shown in his split times. Below is a full table of his results:<\/p>\n

\n

Conner Mantz’s Splits<\/h2>\n

Chicago Marathon 2025<\/h2>\n
\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n
Split<\/th>\nTime<\/th>\nPace (min\/km)<\/th>\n<\/tr>\n<\/thead>\n
5K<\/td>\n00:14:23<\/td>\n2:53<\/td>\n<\/tr>\n
10K<\/td>\n00:29:00<\/td>\n2:53<\/td>\n<\/tr>\n
15K<\/td>\n00:43:44<\/td>\n2:57<\/td>\n<\/tr>\n
20K<\/td>\n00:58:19<\/td>\n2:55<\/td>\n<\/tr>\n
Half<\/td>\n01:02:19<\/td>\n2:57<\/td>\n<\/tr>\n
25K<\/td>\n01:13:44<\/td>\n2:52<\/td>\n<\/tr>\n
30K<\/td>\n01:28:15<\/td>\n2:54<\/td>\n<\/tr>\n
35K<\/td>\n01:42:43<\/td>\n2:53<\/td>\n<\/tr>\n
40K<\/td>\n01:58:12<\/td>\n3:06<\/td>\n<\/tr>\n
Finish<\/td>\n02:04:43<\/td>\n3:00<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n<\/div>\n

The Significance of Mantz’s Record<\/strong><\/h4>\n

The previous U.S. record belonged to Khalid Khannouchi (2:05:38) and stood for over 20 years. Mantz not only broke it\u2014he did so in an era of ultra-fast marathoners, where sub-2:03 times dominate. His result proves that American marathon running is firmly back in the global elite.<\/p>\n

Read More About the Chicago Marathon<\/strong><\/h4>\n

See who else lined up in Chicago and which names formed the elite field in 2025<\/a>.<\/p>\n

\ud83d\udcf8 Abbott World Marathon Majors<\/p>\n","protected":false},"excerpt":{"rendered":"

Conner Mantz completed the 2025 Chicago Marathon in a time of 2:04:43, setting a new U.S. record. Explore the details of his pacing, race strategy, and the significance of this historic achievement for American marathon running.<\/p>\n","protected":false},"author":3,"featured_media":230287,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_et_pb_use_builder":"","_et_pb_old_content":"","_et_gb_content_width":"","footnotes":""},"categories":[53],"tags":[],"class_list":["post-230288","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-chicago-marathon-en"],"_links":{"self":[{"href":"https:\/\/worldmarathoner.com\/en\/wp-json\/wp\/v2\/posts\/230288","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/worldmarathoner.com\/en\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/worldmarathoner.com\/en\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/worldmarathoner.com\/en\/wp-json\/wp\/v2\/users\/3"}],"replies":[{"embeddable":true,"href":"https:\/\/worldmarathoner.com\/en\/wp-json\/wp\/v2\/comments?post=230288"}],"version-history":[{"count":0,"href":"https:\/\/worldmarathoner.com\/en\/wp-json\/wp\/v2\/posts\/230288\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/worldmarathoner.com\/en\/wp-json\/wp\/v2\/media\/230287"}],"wp:attachment":[{"href":"https:\/\/worldmarathoner.com\/en\/wp-json\/wp\/v2\/media?parent=230288"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/worldmarathoner.com\/en\/wp-json\/wp\/v2\/categories?post=230288"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/worldmarathoner.com\/en\/wp-json\/wp\/v2\/tags?post=230288"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}