In biathlon pursuit, everyone is literally chasing the result of the previous race: you “start behind” by exactly how much you lost the sprint.

Core idea

  • The pursuit field is usually the top 60 from a prior sprint race.
  • The sprint winner starts first at 0:00, second place starts as many seconds behind as they finished in the sprint, and so on down the field.
  • First athlete over the finish line wins – no time calculations needed.

So if you were 18 seconds slower than the sprint winner, you begin the pursuit 18 seconds later, trying to catch them.

Distance, loops, and shooting

  • Men: 12.5 km (5 × 2.5 km loops).
  • Women: 10 km (5 × 2 km loops).
  • There are four shooting bouts in this order: prone, prone, standing, standing.
  • After each shooting, you ski a 150 m penalty loop for every missed target before heading back onto the main course.

The race structure is:
Loop 1 → prone → Loop 2 → prone → Loop 3 → standing → Loop 4 → standing → Loop 5 → finish.

Start order and “chase” feeling

  • All qualified athletes start within roughly a couple of minutes, since sprint time gaps are usually small.
  • Overtakes on track are “real”: if you pass someone, you are ahead of them in the standings at that moment.
  • The pressure peaks on the last standing shooting, where misses often flip the lead.

This makes the pursuit especially dramatic to watch, because you see the race unfolding directly rather than waiting for times.

Shooting lanes and range rules (simplified TV version)

  • Athletes come into the range, fill the lowest available lane in order of arrival (1, 2, 3, …), then rotate through as more athletes arrive.
  • They shoot their five targets; each miss equals one extra 150 m loop immediately after shooting.

For a casual viewer, you can mostly ignore lane numbers and just watch:

  • How many targets turn white (hit) vs. stay black (miss).
  • How many penalty loops an athlete skis before rejoining the course.

Why it feels so exciting

  • It’s a story continuation of the sprint: you see if the sprinter can defend their lead, or if better shooters/skaters hunt them down.
  • The format rewards all‑rounders : fast skiing to close gaps, plus calm shooting under fatigue.
  • One bad shooting bout can erase a huge advantage, which is why pursuits often flip in the final kilometers.

TL;DR: In a biathlon pursuit, sprint results set staggered start times; everyone skis 5 loops with 4 shootings (P–P–S–S), skis 150 m per miss, and the first to the line is the winner.

Information gathered from public forums or data available on the internet and portrayed here.