With all of your hard work at threshold on the bike, you may surprise yourself when it comes to running fast. You've got a lot of load in your legs, but you've also got a lot of good fitness. Even though you haven't been running much, you have been doing a lot of good training in this zone. In addition to the pure fitness gains, you also should have a better sense of pacing and moderation of effort at these sorts of intensities. You can use that when it comes to pacing the hard blocks during this run. This run features the most significant work above threshold pace in this plan. It should help you to realize the overall fitness gains you can transfer from one sport to the other, while also reminding you that your focus has been on pedaling rather than pounding the pavement. Pace well and trust your fitness.