Not every race is a 5K, 10K, half or full marathon. A 50K ultra, an 8K cross-country race, a 10-mile road race, each has its own pace chart, built the same way: distance divided by finish gives the pace you hold. This page covers the less-common distances so their targets are as concrete as the popular ones.
The 50K and ultra pacing
A 50K pace chart covers 31 miles, just past the marathon, and it demands a different mindset: ultra pacing is slower and more conservative than a marathon because the extra distance and often the terrain punish any ambition. The chart gives an even pace, but most ultra runners hold below it early on purpose, which is the opposite of road-race instinct.
The 8K and 10-mile races
An 8K, about five miles, and a 10-mile race sit either side of the 10K and the half, and each has a pace chart of its own. The 8K is run near 10K effort; the 10-mile is paced closer to half-marathon effort. Reading the marathon mile pace or the shorter-race pace off the right chart stops a runner from pacing a 10-mile race as if it were a 10K.
Same arithmetic, different distance
Whatever the distance, the pace chart is the same division: total distance over finish time. What changes is the effort the distance supports, which is why a 50K pace chart and an 8K pace chart look so different even though they are built identically. Pick the chart for your actual race and pace to the effort it rewards.
Questions people ask about 50k pace chart
What pace is a 50K?
Divide 31 miles by your goal finish for the average pace, but hold below it early; ultra distances and terrain punish an ambitious start more than a road marathon does.
How should I pace an 8K or 10-mile race?
An 8K is run near 10K effort and a 10-mile near half-marathon effort, so read the pace off the chart for that distance rather than pacing it like a 10K.
Are these charts built differently?
No; every pace chart is distance divided by finish time. What differs is the effort each distance supports, which is why the target paces look so different.