Table: manx_race_results_9
Columns: rank
rider
team
speed
time

Question: What is the lowest rank of rider darren gilpin?
SQL: SELECT MIN("rank") FROM manx_race_results_9 WHERE "rider" = 'darren gilpin'

Question: What is the highest rank of rider colin martin?
SQL: SELECT MAX("rank") FROM manx_race_results_9 WHERE "rider" = 'colin martin'