Below is the list of tables from the database along with their columns and datatype. Need to generate an accurate SQL query for the question.
Only use the columns present in the respective table. Only use the columns which are required to generate the SQL query. Only use table joins if required and not otherwise.

### Tables ###
TABLE: CREATE TABLE table_51246 ( "Country" text, "Total" real, "Marathon (men's)" real, "Marathon (women's)" real, "Half Marathon (men's)" real, "Half Marathon (women's)" real )

### Question ###
When the total winners was smaller than 2 and 2 woman won, what's the average of the men's half marathon winners?

### Accurate SQL ###

SELECT AVG("Half Marathon (men's)") FROM table_51246 WHERE "Marathon (women's)" = '2' AND "Total" < '2'