London Marathon Events (LME) has partnered with the Council for Responsible Sport to measure the social and environmental impact of the 2023 TCS London Marathon.

LME said it will measure the event’s social and environmental impact by using the ReScore app, a cloud-based application developed for the Council for Responsible Sport by Tata Consultancy Services (TCS).

The app will assist in verifying LME’s sustainability progress to help it reach its carbon emission goals. These include reaching net zero carbon emissions across its own operations by 2024 and removing more carbon than it emits across all event operations by 2025.

The 2023 TCS London Marathon will see several initiatives in place to help it achieve this, including a £26 carbon levy to be paid by all international participants used to fund carbon removal and offset projects.

Other measures include all clothing discarded at the start of the race to be collected and sent for reuse and recycling, as well as the use of reusable Mile Markers created in 2022 made from event waste and recycled ocean plastic.

LME director Hugh Brasher said, “[The app] will enable us to have a world-recognised ranking for all the work we are doing to drive positive change. We have already achieved a lot, but we know there is far more to do.”

LME is also working with specialist carbon consultancy Green Element and using its Compare Your Footprint platform to improve data capture and analysis. LME said it will enable the company to produce more accurate carbon emissions calculations and set short-term targets and action plans.