Trowell top-scored for his team with 78 runs from 113 deliveries, and the whole team chipped in with handy runs to compile a highly competitive total.
Horouta captain David Situ said his team lost the game by not making the most of the low and slow bowlers' wicket when Boys' High batted.
“Our fielding let us down and left us too much to chase on a very low wicket.”
They struggled to find any traction at the crease after early promise as Tegbir Singh got them off to a hot start.
Singh, who has come into hot form in recent weeks, scored a rapid 33 runs with six fours before he was caught off the bowling of Keegan Jooste.
Fisher dominated the Horouta batsmen as he took a “fifer” (five wickets) in just eight overs while allowing just 21 runs.
Trowell said he believed it was a bowlers' wicket, but it did provide some consistency if batters could get established.
“It was very difficult to bat on early in your innings, especially against the slower, pace-off bowlers,” he said.
“But once you applied yourself and got yourself in, it was easier to score.”
He felt Boys' High had achieved the goals they had set themselves before the game and it was now about making it more consistent.
“It's just bringing it each week that ultimately counts.”