SCHEMA:
CREATE TABLE table_24037660_2 (circuit VARCHAR, lmp_winning_team VARCHAR, gtc_winning_team VARCHAR)
USER:
How many circuits had a winning team of #1 patrón highcroft racing ang gtc winning team #81 alex job racing ?

QUERY:
SELECT COUNT(circuit) FROM table_24037660_2 WHERE lmp_winning_team = "#1 Patrón Highcroft Racing" AND gtc_winning_team = "#81 Alex Job Racing"