No, we will be using disposable chips that are part of your bib.

Your chip number will coincide with your bib number and will be attached to your bib.

Per USA Track & Field rules, your official time is Chip Time.  This is your time from when you cross the start timing mats until you cross the finish timing mats. Chip time, or net time, is provided as a service to you and is accepted by many races, including the Boston Marathon, as a qualifying time.  Only the overall and master's categories of each race distance will be scored on Gun Time.  Gun Time uses the actual start time of the race (when the gun goes off) and when the runner crosses the finish timing mat.

This is a single-use chip and is good for this event only. The chip will NOT be collected in the finish area. You may keep the chip as a souvenir or deposit it in trash bins in the finish area.