Chocobo Racing should give Tomestones

[Astrahime]

Then make it Rank 300+ that gives Tomestone? Easy!
First Place gets 1 Poetic etc

That's not how this works.
1: It's a level 1 duty.
- This means that it's not going to give you poetics. Poetics are from level 50+ content and ARR Tribal Quests when done with a level 50+ job. Cope.
2: It's a non-combat duty.
- There is no non-combat content that gives you poetics. Wondrous Tails requires you to do 9 Combat Duties.
3: It's a Gold Saucer duty.
- These give you MGP and NOTHING ELSE.