How many points were up for grabs last week and this? What is an f2? I see mention of 15k futures online and 10k
details how many ranking points a player receives for an exit at each round for each level of tournament.
As you will see, 10k Futures are the lowest level of men's ranking point tournament. Kyrgios is currently entered into the level just above that: 15k Futures. You will see in the table that he will receive 8 points for last week's semi-final loss and has guaranteed himself at least another 3 points with his showing this week. Note that Futures points go onto the rankings Monday week after the tournament week (typically 8 days after the final).
China F2 basically means the 2nd Futures event held in China this year. Last week was China F1 and next week will be China F3. See this page
for more on Futures, and see all Futures events held this week by clicking on the 'men' tab on the right under 'current ITF tournaments'.