U.m.N.

Bronze
-Tier 1
--Goblin
---No Contest
-Tier 2
--Scarecrow
---No Contest
-Tier 4
--Elite Soldier (G-Army)
---No Contest
-Tier 5
--GIM52A (G-Army)
---No Contest

Silver
-Tier 1
--Agent Smith
---No Contest
-Tier 2
--Tarantula (Eve Mutation)
---17 xp (1st run)

Gold
-Tier 1
--Z.E.U.S. (Admiral Stromberg)
---20 xp (1st run)

Platinum
--Sephiroth (Nibelheim Incident)
---40 xp (1st run)

The records were mostly for when this was EXP stuff, I don't think it's required anymore unless you received things from the fights (one hit challenge, Extreme, etc.)

Don't worry about it so much