The Barstow girls tennis team played its best match of the year Tuesday, upending a previously unbeaten St. Teresa's squad, 5-4.  Stephanie Dudzinski dispatched with her opponent, 10-2 in #1 singles.  Merideth Rock, in similar fashion won 10-2 at @3 singles, and Kate Sims handled the load at #3 with a 10-3 victory.  At #1 doubles  Dudzinski and Rock won the last three games turning a tense match into an 8-5 victory.   And pulling the girls through in a very well played crucial #2 doubles match, Sydney Ayers and Kate Sims dominated a very good team with an 8-5 victory.   The girls gear up to defend their 2007 Guifoil Tournament Championship this coming Friday.