Mutai, who had to settle for bronze, said: "The windy conditions made it difficult but we knew to drop the Ethiopians, we had to up the pace in the middle laps and go for the medals when we went clear.
"We had not prepared for the Ugandan to finish second. Although we wanted all the medals to remain with us, we are still happy to get two. My next aim is to lower my personal best in marathon in Berlin."
Uganda's Moses Kipsiro, who won in Mauritius in 2006, prevented the Kenyan sweep when he clocked 27:33.37 for silver.
Mutai holds the sixth fastest time ever in marathon, 2:04.55 who clocked to finish second in Rotterdam earlier this year. He is also a twice Eindhoven marathon champion and record holder.
Kisorio, who placed just outside the medals in fourth (27:56.71), admitted he sacrificed himself for his teammates.
"I'm receiving medication for malaria and I knew I would not last the distance. That is why I injected pace mid race to separate the field. I'm pleased what I did has helped bring the title back to Kenya and I know my chance will come another day," the 2007 double African junior champion said.
