Office Hours - Multisport Approach to Marathon Training with Mike Olzinski - 2/24/2020 February 25, 2020 15:14 Updated Follow Not signed in? Log into your Purple Patch account for full access to your education program for coaches and athletes. You need to sign in to view this page. This presentation relies heavily on video content, so we advise you to view office hours. A separate audio file is coming soon.