diff --git a/src/data/SpeedFlowchart.tsx b/src/data/SpeedFlowchart.tsx
index be352f4..63677f3 100644
--- a/src/data/SpeedFlowchart.tsx
+++ b/src/data/SpeedFlowchart.tsx
@@ -212,11 +212,12 @@ export function convertResultsToSpeedFlowchartResult(
   // - 1, 4, 2, 3               for firstRoundNumber=4
   // - 1, 2                     for firstRoundNumber=2
   // TODO: come up with a proper alogorithm maybe
+  console.log('First round rank: ', firstRoundRank);
   const ranksOfLaneAInOrder = [
     [1, 2],
     [1, 4, 2, 3],
     [1, 8, 4, 5, 2, 7, 3, 6],
-  ][firstRoundRank / 4];
+  ][Math.floor(firstRoundRank / 4)];
 
   const firstRoundPairs = ranksOfLaneAInOrder.map(rank => {
     return {