Relay Builder is a team and individual race manager.

Relay Builder manages both predefined races from the library as well as allowing you to construct you own user defined races.

Once a race is defined and selected, Relay Builder records each participant's start time, finish time, duration and pace. The clock view also estimates the participants expected time to finish as well as the expected race finish time.

Additional views calculate and show group exchange expected duration and finish times.

Settings include user defined margin setting for ETA warning notifications, major van exchange message forwarding though messaging (iMessage or SMS) to the other vans, rating multipliers and map routing between major exchanges and arbitrary defined rest area locations.

The map view shows the relay exchange points and colored pins denote major exchanges, finished exchanges and future exchanges. The finished exchanges are annotated with the finish time.

Rating multipliers can be defined by the team to adjust each runner's pace estimates against the difficulty rating of the leg.

Data transfers can be between any number of devices.

Leg results can be automatically posted to Facebook, Twitter. SMS or sent via email during exchanges or postings may be sent manually for any team member's results.

Pre-defined races include

Spokane to SandPoint (Walk and Run)
Oregon Civil War Relay
Ragnar Arizona McDowell Mtn
Ragnar Las Vegas

Results can be emailed in plaintext or CSV format.