{"id":148213,"date":"2026-01-27T11:00:00","date_gmt":"2026-01-27T16:00:00","guid":{"rendered":"https:\/\/athletechnews.com\/?p=148213"},"modified":"2026-01-28T12:41:33","modified_gmt":"2026-01-28T17:41:33","slug":"kasi-launches-ai-run-coach-that-delivers-real-time-training-feedback","status":"publish","type":"post","link":"https:\/\/athletechnews.com\/kasi-launches-ai-run-coach-that-delivers-real-time-training-feedback\/","title":{"rendered":"Kasi Launches AI Run Coach That Delivers Real-Time Training Feedback"},"content":{"rendered":"<h5 class=\"wp-block-heading\" id=\"h-as-race-participation-surges-the-new-ai-powered-coaching-app-offers-in-workout-guidance-based-on-pace-heart-rate-and-performance-data-taking-on-established-platforms-like-runna\">As race participation surges, the new AI-powered coaching app offers in-workout guidance based on pace, heart rate and performance data, taking on established platforms like Runna<\/h5>\n\n\n\n<p>The running boom isn\u2019t just about <a href=\"https:\/\/athletechnews.com\/shakeout-runs-take-over-nyc-marathon-as-brands-eye-long-term-roi\/\">hopping into group runs<\/a> or joining the <a href=\"https:\/\/athletechnews.com\/strava-mid-year-data-running-cycling\/\">hundreds of run clubs out there<\/a>. Now, people are looking to race.<\/p>\n\n\n\n<p>According to Strava\u2019s 2025 \u201cYear in Sport\u201d report, <a href=\"https:\/\/athletechnews.com\/running-brands-every-womans-marathon-saucony-rabbit\/\">participation in races increased significantly,<\/a> with Gen Z leading the charge with year-over-year increases of 28% in 5Ks, 39% in 10Ks, 31% in half marathons and 33% in full marathons.<\/p>\n\n\n\n<p>But arguably the most important component of that race participation isn\u2019t simply signing up, it\u2019s committing to training.<\/p>\n\n\n\n<p>That\u2019s where AI running coaches come in, as beginners and experienced runners look for support through training. While market leader Runna has seen <a href=\"https:\/\/athletechnews.com\/runna-raises-6-3m-for-running-coach-app\/\">monstrous growth<\/a> and <a href=\"https:\/\/athletechnews.com\/strava-acquires-runna-amid-spike-in-race-day-goals\/\">was acquired by Strava last year<\/a>, it could have serious competition with the recent launch of a new coaching app, Kasi.<\/p>\n\n\n\n<p><a href=\"https:\/\/www.runkasi.com\/\"  rel=\"noreferrer noopener\" target=\"_blank\" aria-label=\"(opens in a new tab)\">Kasi<\/a> is an AI-powered coaching platform that offers real-time feedback and guidance during workouts, entering the ears of runners to give them guidance while they\u2019re running.<\/p>\n\n\n\n<p>\u201cFor years I thought, \u2018I wish I could just be at my runner&#8217;s workouts, when they&#8217;re doing the workouts, because I would love to be able to coach them in person in real-time.\u2019 And that&#8217;s what gave me the idea for this,\u201d Kasi founder and CEO Dr. Jason Karp told Athletech News.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Having A Coach in Your Ear<\/h2>\n\n\n\n<p>To get started, users enter in a recent race time of any distance \u2014 whether it\u2019s from a 5K or half marathon \u2014 then the app will calculate what pace to run for each type of workout, from easy everyday runs to lactate threshold workouts and speed intervals.<\/p>\n\n\n\n<p>\u201cI\u2019ve been coaching runners for a long time, and unfortunately, runners often do their workouts incorrectly,\u201d Karp explained.<\/p>\n\n\n\n<figure class=\"wp-block-image size-full is-resized\"><img loading=\"lazy\" decoding=\"async\" width=\"931\" height=\"2000\" src=\"https:\/\/athletechnews.com\/wp-content\/uploads\/2026\/01\/4.webp\" alt=\"\" class=\"wp-image-148217\" style=\"width:316px;height:auto\" srcset=\"https:\/\/athletechnews.com\/wp-content\/uploads\/2026\/01\/4.webp 931w, https:\/\/athletechnews.com\/wp-content\/uploads\/2026\/01\/4-428x919.webp 428w, https:\/\/athletechnews.com\/wp-content\/uploads\/2026\/01\/4-788x1693.webp 788w, https:\/\/athletechnews.com\/wp-content\/uploads\/2026\/01\/4-715x1536.webp 715w\" sizes=\"(max-width: 931px) 100vw, 931px\" \/><figcaption class=\"wp-element-caption\">credit: Kasi<\/figcaption><\/figure>\n\n\n\n<p>\u201cThe big gap is that right now, online coaching is all passive,\u201d he added. \u201cYou write the training schedule, you send it to the runner, they do the workouts, and then they report back to the coach.\u201d<\/p>\n\n\n\n<p>While the program will apply machine learning as it pulls from a larger library of runners, the app is currently built from \u201cif\/then\u201d statements applied from Karp\u2019s own training theory, entering runners\u2019 workouts based on how he would coach in certain scenarios, like running too fast for the first interval of a speed session, utilizing data such as pace, heart rate and ground contact time.<\/p>\n\n\n\n<p>Once the app knows what paces you should roughly be running, the AI coach will talk through your headphones to let you know if you\u2019re on the right track, or if you need to slow down, based on pace and\/or heart rate.&nbsp;<\/p>\n\n\n\n<figure class=\"wp-block-image size-medium_large is-resized\"><img decoding=\"async\" src=\"https:\/\/athletechnews.com\/wp-content\/uploads\/2026\/01\/runner-with-audio-1120x1120.webp\" alt=\"\" class=\"wp-image-148215\" style=\"width:507px;height:auto\"\/><figcaption class=\"wp-element-caption\">credit: Kasi<\/figcaption><\/figure>\n\n\n\n<p>Karp said that if a runner starts a workout too fast, the app might even tell them to stop and start over, while explaining the purpose of the workout and why it\u2019s important not to overdo it.<\/p>\n\n\n\n<p>\u201cI think that&#8217;s the big reason why runners don&#8217;t do their workouts correctly: because they don&#8217;t deeply understand what it is that they&#8217;re trying to accomplish in their workout. So it&#8217;s helpful if you have a knowledgeable coach right there with you,\u201d he explained.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"h-keeping-space-for-human-coaches\"><strong>Keeping Space for Human Coaches<\/strong><\/h2>\n\n\n\n<p>But it\u2019s not only AI-powered \u2014 Karp\u2019s app also provides real-life coaches the opportunity to offer intra-workout feedback, transmitting data to a coach using the Kasi platform and allowing them to observe the workout and communicate with the athlete in real time.<\/p>\n\n\n\n<figure class=\"wp-block-image size-full is-resized\"><img loading=\"lazy\" decoding=\"async\" width=\"931\" height=\"2000\" src=\"https:\/\/athletechnews.com\/wp-content\/uploads\/2026\/01\/3.webp\" alt=\"\" class=\"wp-image-148216\" style=\"width:359px;height:auto\" srcset=\"https:\/\/athletechnews.com\/wp-content\/uploads\/2026\/01\/3.webp 931w, https:\/\/athletechnews.com\/wp-content\/uploads\/2026\/01\/3-428x919.webp 428w, https:\/\/athletechnews.com\/wp-content\/uploads\/2026\/01\/3-788x1693.webp 788w, https:\/\/athletechnews.com\/wp-content\/uploads\/2026\/01\/3-715x1536.webp 715w\" sizes=\"(max-width: 931px) 100vw, 931px\" \/><figcaption class=\"wp-element-caption\">credit: Kasi<\/figcaption><\/figure>\n\n\n\n<p>\u201cOnline coaching is so popular, yet the coaches can&#8217;t physically be at their athletes&#8217; workouts,\u201d Karp said. \u201cSo my app gives them a way to be able to do that and coach them while they&#8217;re doing a workout.\u201d<\/p>\n\n\n\n<p>Karp recognized that Runna is his biggest competitor, but he thinks that the expertise he brings into the app as an experienced and credentialed coach, as well as the platform he\u2019s providing other coaches, creates a better product overall, rather than relying solely on AI.<\/p>\n\n\n\n<p>\u201cWhen it&#8217;s done right, coaching is teaching, and oftentimes that teaching has to take place in the moment while the athlete is doing the workout,\u201d he said. \u201cThat&#8217;s the best time to teach.\u201d<\/p>\n\n\n\n<p>The app is currently available on the App Store as RunKasi, and syncs with the Apple Watch and iPhones, but Karp is hoping to get it integrated with other common running watches like Garmin.<\/p>","protected":false},"excerpt":{"rendered":"As race participation surges, AI-powered run coaching app Kasi offers in-workout guidance based on pace, heart rate and performance data.","protected":false},"author":116,"featured_media":148214,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"disable_comments":false,"pmpro_default_level":"","tpd_franchise_content":"","hide_featured_img_single_post":false,"jetpack_post_was_ever_published":false,"_jetpack_newsletter_access":"","_jetpack_dont_email_post_to_subs":false,"_jetpack_newsletter_tier_id":0,"_jetpack_memberships_contains_paywalled_content":false,"tpd_featured_video":[],"tpd_sponsored_post_logo":"","tpd_sponsored_post_logo_link":"","tpd_sponsored_post_logo_width":0,"tpd_sponsored_enable_nofollow":true,"tpd_disable_incontent_ads":false,"tpd_disable_right_rail_ads":false,"tpd_disable_after_content_ads":false,"tpd_disable_header_ads":false,"tpd_disable_sticky_footer_ads":false,"tpd_disable_video_ads":false,"tpd_disable_outbrain":false,"tpd_affiliate_disclaimer":[],"_jetpack_memberships_contains_paid_content":false,"footnotes":""},"categories":[5],"tags":[4282,523,4652,1515],"post-options":[],"vertical":[],"coauthors":[7629],"class_list":{"0":"post-148213","1":"post","2":"type-post","3":"status-publish","4":"format-standard","5":"has-post-thumbnail","7":"category-tech","8":"tag-ai-2","9":"tag-fitness-app","10":"tag-runna","11":"tag-running","12":"pmpro-has-access"},"acf":[],"featured_media_url":"https:\/\/athletechnews.com\/wp-content\/uploads\/2026\/01\/Screenshot-20-1180x666.webp","author_name":"ani-freedman","author_avatar":"https:\/\/athletechnews.com\/wp-content\/uploads\/2021\/08\/cropped-Ani_Freedman-96x96.jpeg","primary_category":{"term_id":5,"name":"Tech","slug":"tech","taxonomy":"category","url":"https:\/\/athletechnews.com\/category\/tech\/"},"yoast_head":"<!-- This site is optimized with the Yoast SEO Premium plugin v24.3 (Yoast SEO v26.8) - 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