Two marathons in two days on two continents.It’s an incredible feat that has left Mark Harris with countless blisters, and his running mate, Greg Tyers, equally as sore.The 34-year-olds tackled the Paris International Marathon on Sunday. Two flights, a quick shower and a nap later, they were out running again on Monday in the Boston Marathon.They came up with the idea — over a few beers — as a fundraiser for WindReach Recreational Village and Nelson Mandela’s Children’s Fund.“I can’t count the number of blisters on my feet, and I’m still walking funny,” said Mr Harris, an accountant with Scottish Re.“But at the end of the day, it was worth it.”Noting British comedian Eddie Izzard, who famously ran 43 marathons in a period of just 51 days, Mr Harris said: “If he did that and he hardly did any training, we figured we should have a chance.”The pair began an intensive training regime in January with the help of local running group The Weekenders.Their main concern prior to the race? The number of things that could cause their schedule to fall apart — if their bodies didn’t let them down first.“We knew that we would leave on the Thursday and have a day-and-a-half to get ready, but we were wary that, because of our tight schedule between the planes and our running, something could go wrong,” he said.“When we got to Paris, in the back of our minds we were thinking this is the one that we have to get right. If we didn’t get Paris right, we were going to miss our plane.”Luckily, he said, the Paris run went according to plan.Mr Harris completed the run in three hours and 46 minutes; Mr Tyers finished in four hours and 25 minutes.“We went back to the hotel, showered, had a quick change, had a drink and got in a taxi for the airport,” Mr Harris said. “The taxi driver was something. He was like a Formula One driver.”The pair flew to London, where they had the chance to enjoy a brief luxury in the form of a massage they’d booked in advance. As they steeled themselves for their second marathon in as many days, they received word that Boston would be more challenging than they had expected.“We received a series of messages from the organisers saying that the weather was going to be warmer than expected and if people wanted to drop out, they could run next year,” Mr Harris said.“In the weeks before, the weather was in the 60s, but when we landed it was 88F. We were going to go ahead anyway, but on the bus to the starting line I started to think ‘This is really warm.’”By the time the race began, the temperature had risen to 90F.Despite the heat, their sore limbs and only a few short hours of sleep, Mr Harris and Mr Tyers followed through with their second marathon in as many days.“Luckily we trained in Bermuda so we had some experience in the warm weather,” Mr Harris said. “Pretty much every water stop we reached we had lots of water. The crowd was fantastic. They really helped us. It was amazing.”Mr Harris crossed the finish line in four hours and 26 minutes. Mr Tyers followed an hour later, completing the race in five hours and 25 minutes.Their efforts have so far raised more than $7,000 for the two charities, with donations still coming in.People are already asking how they plan to top themselves next year, he said.“I think we’re looking for a few beers this weekend. I think that will be the time when we start to think about whatever comes next.”To make a donation e-mail mark.harris@scottishre.com or greg.tyers@marsh.com. Donations can also be made directly to WindReach on 238-2469.