“GPS didn’t work in the city centre,” he said. “Garmin did not show my real pace and told me that I’d run not 21.1km (13.1 miles) but 38km.”
Russian newspapers and Telegram channels have reported that the security services have jammed GPS signals around the Kremin since two drones hit it on May 3.
The Moscow-based Kommersant newspaper quoted a security service source confirming that “interceptors” were being used to “suppress signals transmitted from satellites” in the city centre.
The Kremlin spent billions developing its own Global Navigation Satellite System (Glonass) but it has not replaced the US-owned GPS in civilian technology, such as smartwatches and cab-hailing apps.
And as well as irritating joggers, Russian GPS jamming is now also annoying taxi drivers and their passengers.
Yandex, a Russia-based online search engine that also runs a cab-hailing business, said apps were now failing, forcing taxi drivers and passengers to ring each other to organise successful pick-ups.
“Due to these failures, some taxi users may be incorrectly showing their pick-up point,” it said in a statement reported by Russian news agencies this week.
A Moscow taxi driver called Anatoly told the Moscow Region Today website that his earnings had halved in the past couple of weeks because of cancelled rides.
“Locals who know Moscow may be able to get in touch but visitors get bored and wander off,” he said.