diff --git a/derby/derby.go b/derby/derby.go
index 13105bf..f753d9e 100644
--- a/derby/derby.go
+++ b/derby/derby.go
@@ -161,7 +161,7 @@ func (dc *DerbyClock) Results() []*Result {
 // readLoop continuously reads from the serial port
 func (dc *DerbyClock) readLoop() {
 	buffer := make([]byte, 0, 256)
-
+	results := make([]*Result, 0, 10)
 	for {
 		select {
 		case <-dc.stopReading:
@@ -206,18 +206,20 @@ func (dc *DerbyClock) readLoop() {
 						Result: result,
 					}
 				}
+				results = append(results, result)
 				// Clear the buffer after a result is extracted
 				buffer = buffer[:0]
 				dc.mu.Unlock()
 			} else if b[0] == '\n' {
 				// Check if we should consider the race complete
 				dc.mu.Lock()
-				if dc.status == StatusRunning {
+				if dc.status == StatusRunning && results != nil {
 					dc.status = StatusFinished
 					dc.mu.Unlock()
 
 					// Send race complete event
 					dc.eventChan <- Event{Type: EventRaceComplete}
+					results = nil
 				} else {
 					dc.mu.Unlock()
 				}