The Tee Interval Formula Operators Don't Know

The Counterintuitive Problem With Tighter Tee Sheets

Squeezing more groups onto the tee sheet feels like a straightforward revenue move. More groups equals more green fees. The logic is clean until you look at what happens to round time when you push past a certain point.

Beyond a specific interval threshold, tighter spacing does not add revenue. It adds time to every round on the course that day. Golfers who wait five or six hours to play 18 holes do not come back. They post reviews. They tell their foursome to book somewhere else. The incremental green fee from those extra groups does not offset the attrition from frustrated repeat players.

Most operators are making tee sheet decisions without knowing the math that governs how intervals translate into round times. That math exists. It has existed for decades. It comes from academic research, and it is specific enough to be applied directly to how you set your tee sheet.

What the Research Says About Tee Intervals and Round Time

Dr. Lucius Riccio at Columbia University spent years studying pace of play on golf courses. His research produced a formula that quantifies the relationship between tee interval spacing and round time. The core insight is this: round time is not just determined by how fast golfers play. It is a function of the interval between groups.

One slow group creates a cascade. Every group behind it absorbs the delay. The shorter the interval, the less buffer exists for that cascade to dissipate before it reaches the next group. At tight enough intervals, the cascade never clears. The entire field slows down together.

This is why anecdotal pace management fails. Rangers chasing slow groups are working on symptoms. The interval is the structural cause.

The Formula: How Tee Interval Predicts Round Time

Dr. Riccio's formula is:

Time to Play = 240 + (14 - Interval)^2.7

In this formula, 240 represents unimpeded round time in minutes, and Interval is the tee time spacing in minutes. The table below shows what this produces across common interval settings:

• 14-minute interval: 241 minutes (just over 4 hours)
• 13-minute interval: 243 minutes
• 12-minute interval: 250 minutes (4 hours 10 minutes)
• 11-minute interval: 260 minutes (4 hours 20 minutes)
• 10-minute interval: 275 minutes (4 hours 35 minutes)
• 9-minute interval: 300 minutes (5 hours)
• 8-minute interval: 350 minutes (nearly 6 hours)
• 7-minute interval: 425 minutes (over 7 hours)

That last number is not a typo. A 7-minute interval produces rounds over seven hours long under this model.

The critical thing to understand is that this curve is not linear. The penalty for tightening intervals is small at the looser end and becomes severe at the tighter end. Moving from 14 to 12 minutes adds about 9 minutes to a round. Moving from 10 to 8 minutes adds 75 minutes. That disproportionate acceleration is the part most operators have never seen quantified.

Why Squeezing Intervals Hurts Revenue

Work through the operator's logic. A course moving from 10-minute to 8-minute intervals fits two additional groups into the same window. Two more groups at whatever your green fee rate is. On paper, that looks like a solid revenue gain.

Here is what the math says is also happening. Average round time just increased by 75 minutes. Every golfer on the course that day is now playing a round that is an hour and fifteen minutes longer than it was at 10-minute intervals. Some of them planned to be done by a certain time. They are not done by that time. Their carts are impounded mentally before they finish 18.

Variability is the primary driver of this effect. One slow group, one group that takes extra time on a par 3, one group that cannot clear a green fast enough, creates a cascade that reaches every group behind it. At tight intervals, there is no buffer. The cascade propagates through the entire field. At wider intervals, faster groups absorb it and it dissipates.

The incremental green fee from two additional groups does not offset the attrition from the golfers who experience a five or six hour round and decide not to return. Repeat play is where course revenue actually lives. A single frustrated foursome that stops booking represents far more lost revenue than two additional groups gained on one day.

What the Optimal Tee Interval Actually Looks Like

Dr. Riccio's conclusion is worth knowing precisely. The optimal tee interval is the shortest interval that does not substantially increase round time.

That is the target. Not the longest interval you can justify. Not an industry benchmark. The shortest interval that keeps round time from climbing.

That number is not universal. It depends on course layout, hole difficulty distribution, golfer demographic, cart versus walking ratio, and weather patterns. A 14-minute interval at a fast municipal course may be conservative. A 10-minute interval at a slower resort layout may already be past the inflection point for that specific course.

The formula gives you a model. Your course gives you the actual data. Those two things together let you find your number.

How Real-Time GPS Data Helps You Find Your Course's Number

Industry benchmarks are not your course. Published research gives you the model. To apply it, you need data from your own layout, your own golfer mix, your own conditions.

Precision GPS pace tracking shows actual round times by group, by hole, by tee interval. It identifies where variability is being introduced. Which holes are creating backups. Which groups are causing cascades. Whether green clearing delays are the limiting factor on a specific hole. Whether the problem concentrates on weekend mornings or appears across the board.

With that data, you can run interval experiments and measure results directly. Move from 9-minute to 10-minute intervals and track what happens to average round time over 30 days. The formula tells you what to expect. Your GPS data tells you what is actually happening on your course.

This is a different kind of measurement category than standard GPS. Standard GPS tells you where carts are. Precision GPS built on RTK correction technology gives you sub-foot accuracy, which means pace calculations tied to specific holes and positions on the course are reliable enough to base decisions on. You are measuring actual group positions and actual hole times, not estimates derived from coarse location data.

That precision matters because the decisions you are making with this data, specifically interval changes and their downstream effects on round time and revenue, are decisions with real financial consequences. You need accurate inputs.

Applying This at Your Course

Start with the formula. Run your current tee interval through it and see what round time the model predicts. Compare that to your actual average round time from your GPS data. If your actual rounds are running longer than the formula predicts, you have a course-specific problem: a difficult hole cluster, a bottleneck at a particular green, a demographic issue with your typical golfer mix. That gap between predicted and actual is worth investigating.

If your actual rounds roughly match the formula, you have a reliable baseline. Now you can ask the right question. Where on the curve are you? Are you at 10 minutes and already seeing 4-hour-35-minute rounds? Moving to 9 minutes will cost you 25 more minutes per round. The formula says so. Your data will confirm it or tell you your course behaves differently.

The point is to make this decision with numbers, not instinct.

The Math Has Been Available for Decades

Dr. Riccio's research is not new. Most courses have never applied it because they did not have the data infrastructure to test it on their own layout. A formula without course-specific data is interesting but not actionable. Course-specific data without a model to interpret it tells you what is happening but not why or what to do about it.

FAIRWAYiQ gives operators the real-time pace data to find their optimal interval and measure the results of any change they make. If you are setting your tee sheet based on available slots and historical habit, you are guessing at one of the most consequential variables in your operation. The math tells you what to expect. The data tells you what is actually happening. Both together give you a decision.

If you want to see what your course's pace data looks like in the FAIRWAYiQ platform, request a demo and we will show you.