Around 80 athletes local to five European countries - the UK, France, Spain, Italy and Germany - and 100 international stars have been loaded into the Twitter Buzz Aggregator.
Every mention of their name on Twitter is then recorded and the sports person with the most mentions each day climbs up the podium.
Currently, footballer Ryan Giggs has the gold with 1,859 mentions following last night's debut of the Team GB football team.
His teammate and fellow Welshman Craig Bellamy has the bronze with 1,119 mentions, while British diver Tom Daley holds the silver spot with 1,410 Twitter references.
Eurosport said that the counters will be reset every day to create "a truly daily guide".
Meanwhile, the Met Office has said that weather for Danny Boyle's glittering London 2012 Opening Ceremony this evening is expected to be dry, with only a low risk of a shower.
Andy Page, chief forecaster at the Met office, said: "Although there will be showers through the day, these are likely to clear away through the evening.
"This will leave a mainly fine end to the day with just a low risk of a shower passing directly over the Stadium during the ceremony."
In addition, independent weather forecast services provider The Weather Channel is offering targeted, hyper-local weather forecasts for all the 36 venues at the summer Olympics throughout the British Isles.
Attendees and spectators can keep up with the most accurate forecasts and impending weather conditions during the events, either online at www.weather.co.uk or via Weather Channel apps on Google Android and Apple iOS devices.
Each venue will link to a page containing the TruPoint weather forecast and its schedule of events.
The Weather Channel vice president of international Mike Zarrilli said: "The Weather Channel will provide hyper-local weather forecasts for each of the Olympic venues so sports fans can quickly and easily find out what the specific conditions will be like this summer in real time.
"The TruPoint technology forms a deeper, more accurate picture of the weather for the events and is a great showcase of our UK capabilities in a practical and useful way for the Games."
Alongside the Olympic Stadium, London venues include the Aquatics Centre, the basketball arena, velodrome, Greenwich Park for equestrian events, Wimbledon for the tennis and the Horse Guards Parade for the volleyball.
Other events will go ahead outside of London, including Eton Dorney in Windsor that will host canoeing and rowing; Old Trafford in Manchester for football, Weymouth and Portland for sailing; and Brands Hatch in Kent for Paralympics events.
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