The celebrations broke out on Friday morning shortly after the KCSE results were announced, confirming that the school had recorded an A-minus mean grade for the first time in its history.
Soon after the news spread, students poured out of the school compound, singing, dancing, and waving tree branches as they made their way through Masimba Town.
Teachers joined in the celebrations, smiling proudly as residents cheered them on. For many in the community, it was a moment they had waited for over the years.
School officials said the result marked a major turning point for Riabigutu Secondary, which has steadily improved its academic performance through discipline and teamwork.
They described the A-minus grade as a reward for years of consistency, sacrifice, and belief in the potential of their students.
Teachers credited the success to early preparation, close follow-up on student progress, and a strong culture of cooperation.
According to them, learners were encouraged to support each other through group discussions and peer learning, which helped boost confidence and understanding of difficult subjects.
Students who took part in the celebrations said the journey was not easy. Many recalled long hours of revision, strict routines, and moments of doubt.
However, they said the encouragement from teachers and the support of parents kept them focused until the final exam.
Parents and local residents joined the celebrations, praising the school for raising academic standards in the area.
Some said the result has changed how the community views the school, describing it as a source of pride and inspiration for younger learners.