Sprint Track

"Get your shoes on 'cause the bloons are back with the new Sprint Track track and the March and April 2015 Daily Challenge Vaults. Grab some AP and test your BTD skills on this new Beginner track and 61 unique challenges from the past!"

- May 8th, 2015 description

"Because repetition is fun we've introduced the new Sprint Track track, a beginner track where bloons float around a running track."

- Ninja Kiwi's May 8th 2015 news blog

 is a track in Bloons Tower Defense 5 that was released on May 8th, 2015.

Overview
This track is set on a track, hence the name. The track has three lanes that act as the paths for the bloons to follow. In the left side of the track is a body of water. It is one of the longest tracks in the game due to the 3 tracks, and towers can hit a bloon many times on the way to the exit.

Trivia
This map bears slight resemblance to Four Circles from BTD 6.