The USGA and R&A updated the rules at the start of 2026, and most golfers have no idea. The changes weren't announced with a press conference — they were published as Model Local Rules, quietly adopted by the PGA Tour and an increasing number of courses. By the time you read this, they may already be in play at your club.
Three of the changes have direct implications for how your bets play out. Not in a dramatic "the whole game is different" way — more in a "this changes how a specific situation resolves, and that situation came up last Saturday" way. If you care about playing your bet fairly and settling cleanly, these are worth knowing.
A quick note on how these work: the changes described below are technically Model Local Rules — optional additions that committees can formally adopt, not changes to the core Rules of Golf. The PGA Tour adopted all of them for the 2026 season. Many clubs are following. If you're playing in a formal event or your club has adopted them, they apply. If you're playing a casual group round under house rules, they apply only if your group decides they do.
Pitch Mark Free Relief: The Biggest Change for Casual Play
Here's the one that matters most for your Saturday round.
Under the previous rules, if your ball embedded in the fairway (plugged in a pitch mark), you only got free relief if it was embedded in the mark created by your own ball. If it plugged in someone else's unrepaired pitch mark, you played it as it lay — even if that meant a buried lie six inches deep in soft turf.
That's gone. Under the 2026 model local rule, any ball embedded in any unrepaired pitch mark on fairway-cut turf (or shorter) gets free relief. You lift, clean, and drop within one club-length, no nearer the hole.
What this means for your Nassau: A player who would have faced a buried lie after a well-struck iron can now get relief, improving their chance to make par or better. On a day when the course is soft and pitch marks are everywhere, this change probably affects three or four holes. In a competitive Nassau, that's meaningful — a hole that one player would have lost due to a plugged lie they didn't create is now a fair contest again.
The rule also defines when a pitch mark is "repaired": pressed down with a club or foot, worked over with a tee, or rolled over by maintenance equipment. Repaired marks don't qualify for relief. Fresh, unrepaired holes do.
Ball Movement Penalty Cut in Half
Under Rule 9.4b, if you cause your ball at rest to move — accidentally nudge it at address, or bump it while removing a loose impediment — the penalty was previously two strokes. Under the 2026 adoption, it's one stroke, provided you genuinely didn't know the ball had moved.
The key distinction: if you were aware the ball might have moved and played it from the wrong spot anyway, the general penalty (two strokes for playing from a wrong place under Rule 14.7a) still applies. The reduced penalty protects the player who backs off to take a practice swing, doesn't notice the ball shifted an inch, and plays on in good faith.
What this means for your betting games: In Nassau — which is match play — a two-stroke penalty for accidentally moving your ball used to turn a competitive hole into a concession. One stroke is recoverable. You can still halve the hole, still push for the win. The change is especially relevant in tough lies where you're working around the ball — pine straw, thick rough, near a hazard — situations where accidental ball movement is most likely.
The underlying logic: punish cheating, not honest mistakes. The old two-stroke penalty often felt disproportionate when the movement was clearly accidental and the player gained nothing from it.
Internal OB Only Penalizes Tee Shots
Internal out-of-bounds — white stakes placed inside the course boundary to protect specific strategic elements of a hole — previously penalized any shot that crossed into the marked area. The 2026 clarification says internal OB only applies to shots played from the teeing area.
In plain terms: if you hit a tee shot into internal OB, you're penalized. If you hit a recovery shot that crosses near the same stakes while you're already in trouble elsewhere on the hole, you're not.
What this means for pressing situations: In a Nassau, the riskiest moment to consider internal OB was mid-hole when you were trying to recover from trouble and needed to carry over a trouble area. That risk is effectively removed for recovery shots. You can take an aggressive line on a recovery without the internal OB stake changing the math of the hole.
The short version: golf got a little more forgiving on unintentional mistakes and lucky-bad breaks in 2026. For betting purposes, that mostly means fewer situations where an accident rather than skill determines who wins or loses a hole. That's good for the integrity of the game — and good for keeping arguments off the 18th green.
Questions about how to settle golf bets? Everything from net vs. gross to what happens when someone picks up is in the settlement guide. For a full breakdown of how presses work in Nassau and Match Play — the rules that govern press timing, doubling, and chains — the presses guide has everything you need.
Track every game automatically with Stick — the settlement math handles all of it regardless of which rule variations your group plays.