DoubelJ

With this plugin you can add a Training and associated Courses to your WordPress site. 
With a widget you can get a sorted list by date of the Training.
In newer versions there is an agenda with the training and an opportunity to add subscription forms at the training and an e-learning module.

JaJaDi Training

With this plugin you can add training and courses to your WordPress site.

michaellasmanis

Frederik Liljefred. M.D.

TheRealEyeless

This plugin let you convert your blog into a training log and let you track your activities. You get advance statistics and running related calculators. See screenshots.
Track your distance, pulse, calories or time and get the graphs you want. We support area-, bar-, column-, line-, pie-, 3dpie-, donutpie-, scatter-graph or table. You can get data for a given month or a whole given year. See screenshots.
You’r able to use a variety of calculators; Training Zones Calculator, VDOT calculator, V02max-Calculator, Race Time Calculator, Training Pace Calculator, Body Mass Index Calculator, Calculate Predicted effect of change in weight.
You can add graphs using Google Chart see FAQ for howto use it.
<h3>To Do</h3>
<ul>
<li>gear list (started)</li>
<li>auto import data from garmin connect </li>
<li>add chill factor calc</li>
<li>add graph for your weight and track your weight </li>
<li>add full support for translation</li>
<li>add combo graphs eg distance vs time, time vs pulse etc</li>
</ul>

Runners Log

This plugin let you convert your blog into a training log and let you track your activities. You get advance statistics and running related calculator …

JaJaDi Training vs Runners Log