Table: guy_martin_results
Columns: race
position
time
speed
replica

Question: Whice race ended with a DNF?
SQL: SELECT "race" FROM guy_martin_results WHERE "position" = 'dnf'

Question: Which race ended with a time of 01:46:59.69?
SQL: SELECT "race" FROM guy_martin_results WHERE "time" = '01:46:59.69'

Question: What was the speed of the Superbike race?
SQL: SELECT "speed" FROM guy_martin_results WHERE "race" = 'superbike'

Question: What was the speed of the race that ended in 2nd place and had a time of 01:13:03.39?
SQL: SELECT "speed" FROM guy_martin_results WHERE "position" = '2nd' AND "time" = '01:13:03.39'