You raised pre-flop, someone called, flop comes. Now you're the aggressor and the action is on you. Do you (continuation-bet) or check?
The single most important variable isn't your hand — it's the board texture.
Dry boards (K72 rainbow, A83 rainbow, 962 with one suit) favor the pre-flop raiser's range. Your range has more overcards, more pocket pairs that are now overpairs, more hands that hit top pair. ~65–75% of hands, including air bluffs.
Wet boards (JT9 two-tone, 987 connected, 865 rainbow) favor the caller's range. They defended with suited connectors and small pairs that hit these boards hard. only value and strong draws; check everything else.
Dynamic boards (K89 flush draw, AT7 one suit) are in between — bet with value + draws, check medium strength.
The #1 mistake: betting every flop because "I raised pre-flop." That's robotic and −EV. The #2 mistake: betting air into wet boards. You're turning a check-fold into a bet-fold that costs more.
Key points
✓Board texture > hand strength for the c-bet decision
✓Dry + rainbow = c-bet wide including air (65–75% freq)
✓Wet + connected + two-tone = value + draws only
✓Always bet draws — semi-bluffs have fold equity + pot equity
✓Medium made hands (middle pair) want to check-call wet boards
✓33% pot is the modern default size for most c-bets