Traceback (most recent call last):
  File "/var/www/tennisabstract/cgi-bin/tourney.cgi", line 1002, in <module>
    match_row, _, _ = make_match_row(sm, rdict, pdict, tlev)
                      ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/var/www/tennisabstract/cgi-bin/tourney.cgi", line 315, in make_match_row
    w1won = cxd((w1spw/float(w1sp)) * 100, 1) + '%'
                 ~~~~~^~~~~~~~~~~~
ZeroDivisionError: float division by zero