
ZED-F9P module
u-blox F9 high precision GNSS module
Case studies

Fitogether, a global leader in athlete performance monitoring, successfully deployed its next-generation runner-tracking technology at the 2025 MBN Seoul Marathon, equipping 250 runners with wearable devices powered by u-blox Locate, an integrated solution combining a u-blox GNSS receiver (ZED-F9P) with PointPerfect Flex PPP-RTK correction services.
The result: real-time, centimeter-accurate positioning without the need for traditional base-station infrastructure, unlocking deeper insight into speed, posture, fatigue, and running efficiency across every segment of the race.
Challenge 1: Achieving high-precision tracking in dynamic, dense environmentsMarathons pose complex positioning challenges: thousands of runners, crowded urban environments, and constantly changing movement patterns. Fitogether required centimeter-level, real-time accuracy to correctly analyze form stability, internal load, and performance output, three key indicators that cannot be reliably captured with standard wearables or GPS alone. Precise tracking was essential for identifying subtle but critical biomechanical variations such as upper-body oscillations, left-right balance shifts, or cadence breakdowns that influence injury risk and performance decline. Challenge 2: Eliminating dependency on fragile, time-consuming base-station setupsTraditional athlete-tracking solutions rely on local base stations that are expensive to install, vulnerable to interference, and require significant on-site support. For large public events like a major city marathon, where logistical windows are tight and mobility is essential, Fitogether needed a solution that:
They required a reliable, infrastructure-free alternative. Challenge 3: Enhancing athlete insights beyond standard GPS and smartwatch dataFitogether’s mission is to transform raw positioning data into actionable performance intelligence. To accurately evaluate:
Fitogether needed a high-precision, low-latency positioning foundation to feed its analytics engine. Standard GPS wearables cannot deliver the detailed biomechanics needed for elite-level performance diagnostics |
Fitogether’s enhanced marathon-tracking solution integrates u-blox Locate, combining u-blox GNSS receivers with the PointPerfect Flex PPP-RTK correction service, delivering true centimeter-level athlete positioning without local base stations.
This capability enabled Fitogether to capture runner data across the entire 42 km race, including posture oscillations, fatigue onset, and segment-by-segment form degradation.
“Using u-blox PointPerfect, we can now deliver precise, real-time performance data anywhere in the world,” said Chulwoo Park, CTO, Fitogether. “The Seoul Marathon was the perfect stage to demonstrate how our collaboration with u-blox allows us to monitor athletes more effectively than ever before.”
Outcome #1 – Achieving cm-level precision anywhere, reliablyBy integrating u-blox’s PointPerfect precise positioning service, Optimotive ensures IRIS MK2 can navigate complex environments with cm-level accuracy, allowing autonomous 3D scanning and inspection routines to operate with confidence and consistency, no matter the conditions. “We’re automating tasks that used to take hours of expert time. PointPerfect gives us the precision we need to make IRIS a real alternative to manual fieldwork.” Scott Fairley, CEO, Optimotive Outcome #2 – Seamless GNSS integration, minimal overheadOptimotive successfully integrated the u-blox ZED-F9P module with PointPerfect Flex to deliver a streamlined, robust GNSS solution that works out of the box with minimal setup. The solution reduced the need for additional antennas, software licensing, or platform-specific configurations, saving on development time and field support costs. Outcome #3 – Fully autonomous, lightweight deployment modelThanks to the combination of u-blox GNSS and Optimotive’s modular robot-plus-base-station system (BOX), IRIS MK2 can be dropped into any environment and begin autonomous operation immediately, even off-grid. The lightweight GNSS footprint supports extended run times, simplified logistics, and scalable deployment across hundreds of job sites. |

Each Fitogether wearable device integrates u-blox Locate, combining:
This delivers:
At the Seoul Marathon, the system enabled detailed, segment-by-segment biomechanical assessment for all 250 runners equipped with the devices.
With u-blox Locate at the core, Fitogether is enabling:
The Seoul Marathon demonstrated the potential for true next-generation performance monitoring in real-world conditions.
Fitogether continues to expand its global sports technology footprint, integrating u-blox Locate across multiple athlete-tracking ecosystems.
“Understanding detailed running data helps athletes achieve percentage gains to maximize performance,” said Chulwoo Park, CTO, Fitogether. “The data we’ve collected highlights fascinating running nuances for anyone serious about their journey.”
By combining Fitogether’s advanced analytics with u-blox’s high-precision positioning, the partnership is redefining how performance, fatigue, and biomechanics are measured, setting a new standard for athlete tracking worldwide.
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