The Superhero Database Classification number, or SHDB Class, is a number that represents the overall 'power' of a character. All traits of a character are used for calculating the Classification.
What it DOESN'T mean
This doesn't mean that a higher class would always beat a lower class character. But the bigger the difference in Class is, the more obvious it is who'll win in a fight.
How is this calculated
( INT^1.3 + (STR*0.5 )^2 + (SPE*0.5)^2 + DUR^1.6 + (POW + (SPS*SPL))^2 + COM^1.8 ) ^ TIER
Super Power Score and Level
Every Super Power has a score (SPS) that is used to calculate the Class. Each Super Power also has 3 levels (SPL). The level is set when connecting that Super Power to a character. The level determines the final score, of the Super Power, being used in the calculation.
This Implies, They Didn't Tie!
The Presence Canonically Indirectly Won that Fight! Likely Due to Banishing the Council (Including trigon) as AkhilPDX pointed out.
You can ALSO find evidence of this in Text Implying this Capability of Banishing, and in turn the Banishing Situation where he says in this very same storyline when initially confronting the council
"I am the PREASENCE i am EVERYWHERE-- even within your OWN Corrupted Heart."
This implies in a Weird way, the Preasence has Omnipresence even among and within beings like Trigon... Which Implies simply banishing the Counsel wouldn't take much TBH.
Sooo, TBH If your REALLY want to say... You can HONESTLY give Trigon the Benefit of the Doubt a Clarify it as a BFR (Battle Field Removal) loss, and not a normal loss...
Anyways Though... Regardless of how you look at this situation it seems to imply The Presence has the Slight advantage due to this Omnipresence situation!