public int getCourseRecord(String courseName, String sdate) {
        Date date = new Date(sdate);
        ArrayList<Round> selected = new ArrayList<Round>();
        Integer lowestScore;
        for (Round r: rounds) {
            if (r.getCourse().equals(courseName) && ( r.getDate().compareTo(date) == 0 || r.getDate().compareTo(date) < 0 ) ) {
                selected.add(r);
            }
        }
        lowestScore = selected.get(0).getScore();
        for (int i = 1; i < selected.size(); i++ ) {
            if ( selected.get(i).getScore() < lowestScore )
                lowestScore = selected.get(i).getScore();
        }
        return lowestScore;
    }