CREATE TABLE table_2492 ("Year" FLOAT, "Date" CLOB, "Driver" CLOB, "Team" CLOB, "Manufacturer" CLOB, "Laps" CLOB, "Miles  ( km ) " CLOB, "Race Time" CLOB, "Average Speed  ( mph ) " CLOB, "Report" CLOB)

How many miles (km) were driven when the average speed (mph) was 103.145?
SELECT "Miles (km)" FROM table_2492 WHERE "Average Speed (mph)" = '103.145'
SELECT "Miles (km)" FROM "table_2492" WHERE "Average Speed (mph)" = '103.145'