Hand History driven straight to this forum with DriveHUD Poker Tracking Software - http://drivehud.com

NL Holdem $0.1(BB)
CO ($14.08) [VPIP: 6.4% | PFR: 4.3% | AGG: 38.5% | 3-Bet: 0% | Hands: 141]
BTN ($10) [VPIP: 7.7% | PFR: 7% | AGG: 31.5% | 3-Bet: 3.7% | Hands: 928]
SB ($16.19) [VPIP: 29.4% | PFR: 11.8% | AGG: 20% | 3-Bet: 0% | Hands: 17]
HERO ($10)
UTG ($33.39) [VPIP: 13% | PFR: 7.9% | AGG: 34.6% | 3-Bet: 5.7% | Hands: 177]
HJ ($9.77) [VPIP: 66.7% | PFR: 0% | AGG: 0% | 3-Bet: 0% | Hands: 3]

Dealt to Hero: Ad As

UTG Folds, HJ Calls $0.10, CO Folds, BTN Raises To $0.55, SB Folds, HERO Raises To $2.12

How is my sizing here in this spot and if/where it's wrong, what is the theory behind correcting it?

Thank you

You could go a tad smaller but this is fine.
Let's say you raised to $3. This is too big. The way to fix it using logic is you're risking too much to win too little when you should have quite a few bluffs in your range here. You also want to have room to maneuver postflop.

Awesome. I'm on a long run where I just cannot get value on my big hands. Thousands of hands. I'm looking into my sizings in certain spots to see if there's something I'm doing wrong with them.

Hand History driven straight to this forum with DriveHUD Poker Tracking Software - http://drivehud.com

NL Holdem $0.1(BB)
CO ($14.08) [VPIP: 6.4% | PFR: 4.3% | AGG: 38.5% | 3-Bet: 0% | Hands: 141]
BTN ($10) [VPIP: 7.7% | PFR: 7% | AGG: 31.5% | 3-Bet: 3.7% | Hands: 928]
SB ($16.19) [VPIP: 29.4% | PFR: 11.8% | AGG: 20% | 3-Bet: 0% | Hands: 17]
HERO ($10)
UTG ($33.39) [VPIP: 13% | PFR: 7.9% | AGG: 34.6% | 3-Bet: 5.7% | Hands: 177]
HJ ($9.77) [VPIP: 66.7% | PFR: 0% | AGG: 0% | 3-Bet: 0% | Hands: 3]

Dealt to Hero: Ad As

UTG Folds, HJ Calls $0.10, CO Folds, BTN Raises To $0.55, SB Folds, HERO Raises To $2.12, HJ Folds, BTN Folds

HERO wins: $1.25

try 15bb