PACE Turf rumors, news
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PACE Turf news, rumors
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• Sand topdressing to clipping volume ratios
In 2020 I suggested that adding 1 mm of sand (see conversions to common units here) for every 1 L/m2 of clipping volume might be a topdressing rate that would keep OM246 constant. Since then, I’ve studied—at multiple golf courses—how much sand has been applied, how many clippings have been collected, and how the OM246 test results have changed. It turns out that the 1:1 ratio of ...2026
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• Recent updates from soil properties on every golf course in the USA to DNA fingerprinting for turf variety
I realized it’s the end of April and I haven’t written any new posts on the ATC site this month. Here are some recent updates I’ve published at PACE Turf, which cover a wide range of topics. If you aren’t yet a PACE Turf member, I encourage you to join PACE Turf to get these updates along with our site-specific weather insights. PACE Turf Update Titles Chart of the week: ...2026Check it out ATC Doublecut headline news
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• Standard sand amounts
TL;DR: 1) Know the standard sand rate recommendations, which range from 6 to 11 mm per year at present 2) Measure the amount of sand you apply 3) Don’t apply the standard amount! Adjust amounts based on surface performance & OM246 I traveled around Japan in early 2026 with Dr. Frank Rossi, looking at monuments, riding trains, watching baseball, and talking about many things, including norma...2026
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• Sustainable Turfgrass Management in Asia 2026
This page will be updated with conference photos and additional presentations and information resources will be available for download after the conference. Slides You can download the slides here. Slides from Micah Woods A system for optimizing playing conditions Clipping volume: what the grass is telling you: coming soon Sand: new insights into physical & chemical properties: coming soon ...2026Visit the page ATC Doublecut
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• GCSAA Conference 2026
Get all the latest turfgrass information from ATC through our email newsletters. ATC newsletter sign-up Find reference information, site-specific weather and climate appraisals, and weekly updates at PACE Turf. PACE Turf See the Notes section below for even more ways to get information and updates from me. February 3: Harmonizing Turf Growth, Soil Organic Material, and Surface Performance,...2026
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• GvX and sand
2025
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PACE Turf injury and suspension
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• Converting clipping volume to dry weight
One of the reasons I didn’t pay attention to clipping volume numbers in my youth was my failure to realize that the volume of clippings is related to the dry weight of clippings. Those who don’t bother measuring clipping volume today occasionally mention that the volume won’t be related to the weight. “Too many variables for this to work,” they might say, and then wil...2024
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• Growth Potential. What does it mean????Winter Injury to Zoysiagrass in Poorly Draining AreaOver the last weekend a few questions were asked about the condition of the Zoysiagrass fairways. Meyer Zoysiagrass is a warm season grass that has excellent cold tolerance, however in shaded, high traffic and low lying areas where surface drainage is inadequate the turfgrass can be impacted negatively by cold weather. Many of the thi...2023See more articles Pace Turf
Timeline
- 2026
"ATC newsletter sign-up Find reference information, site-specific weather and climate appraisals, and weekly updates at PACE Turf." - 2025
"Find turfgrass reference information, site-specific weather and climate appraisals, and weekly updates at the PACE Turf information center." - 2024
"I wrote about the importance of effective height of cut in this PACE Turf update." - 2023
"For even more information, see: The PACE Turf information center The ATC YouTube channel The ATC Doublecut and the ATC Office Hours podcasts."
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PACE Turf stats and results
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• Sand topdressing to clipping volume ratios
2026
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• GvX and sand
2025
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• Fungicides and disease intensity
2025
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• GvX clippings
Questions have been arriving regularly about the turf GvX. I’ll answer a couple of them here. Days with no mowing, and zeros I’ve received a few variations of this question.1 It goes something like this. How should I handle days without a mow, or an area that doesn’t have data recorded for that day? On a day with no mowing, there is no clipping volume. On a day with no mowing, ...2025Click for news about Michael Jordan
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• Hot Takes on Turf
I was a guest on the USGA Green Section podcast for an episode with the title Hot Takes on Turf with Dr. Micah Woods. Host John Petrovsky asked a range of questions that I found quite interesting, and I hope you will too. Here are links to more information about a few of the things we discussed. Blog post about what not to do, thinking of advice I got from Stan Zontek at the 2010 U.S. Open abou...2025See also ATC Doublecut stats
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• Calculating GP
The PACE Turf temperature-based growth potential, or GP, is a utility function that takes the input of average air temperature, and gives an output of GP on a scale of 0 to 1, or 0 to 100%. This isolates the potential effect of temperature on turfgrass growth, and conveniently expresses that potential on a scale we can all understand. The growth potential equations have some constants and one vari...2024
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• Converting clipping volume to dry weight
2024
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• Accumulation rate of soil organic material
When you do OM246 testing to find the total organic material at known depths of the rootzone, you can use those test results to find the net accumulation rate of organic material in the rootzone. This is a useful value to know, because you can then: adjust sand topdressing with more precision check if your grass and growing environment and management practices are causing organic material to accu...2024Visit the page ATC Doublecut statistics
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• Two weeks in August
I worked at golf tournaments in consecutive weeks, first at Hazeltine National Golf Club during the U.S. Amateur Championship, and then flew to Japan to work at Keya Golf Club for the KBC Augusta Tournament. If you’d like to see some photo galleries from my camera from these tournaments, scroll to the end and have a look at the embedded Instagram photo galleries. ...2024
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• SUNY Delhi MLSN discussion
One of the things I’ve tried to explain about MLSN is that simply taking a soil test and comparing the result to the MLSN value is not enough. One also needs to consider how much of an element the grass will use. In a presentation for the Brookside Labs Amplify Network on April 25, and then a discussion with turfgrass students at SUNY Delhi on April 26, I explained why this is, and shared th...2024Click for news about ATC Doublecut
PACE Turf parents, kids, wife / husband, girlfriend / boyfriend
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• Nitrogen harvested in clippings: calculation update for 2024
I use a method based on clipping harvest and normal leaf nitrogen content to find the estimated nitrogen harvest. I adjust this based on species, because there are differences in the clipping volume to dry mass conversion based on what type of leaf we are working with. There are also differences between species in leaf N content, as you’ll see in the posts listed below. My explanation of thi...2024
Top PACE Turf news
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• Measuring effective cutting height with a laser
I think we’ve all seen the prism gauges that can be used to check the effective height of cut. Well, they sort of can be used for that, but there’s a catch. If you move your eyes just a little bit, that changes the angle at which you are lining up the tips of the grass blades with the measurement scale. Because of that, there’s always a bit of uncertainty with that measurement. I...2024
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• Palmetto GCSA Education Meeting
Slides You can download the slides here: Systematic improvement of golf course conditions, PDF file Systematic improvement notes I started off with this as an introduction: For a system of putting surface management, we can start with measuring the playing conditions that are produced. That’s going to involve the stimpmeter measurement, possibly an assessment of how smooth the surface is,...2024See also ATC Doublecut
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• Sand topdressing to clipping volume ratios
2026
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• Recent updates from soil properties on every golf course in the USA to DNA fingerprinting for turf variety
2026Visit the page ATC Doublecut
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• Standard sand amounts
2026
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• Sustainable Turfgrass Management in Asia 2026
2026See also ATC Doublecut
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• GCSAA Conference 2026
2026
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• GvX and sand
2025
Golf Fame Ranking
- 1. Rory McIlroy
- 2. Scottie Scheffler
- 3. Jon Rahm
- . . .
- 197. PACE Turf
PACE Turf schedule, game
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• Sand topdressing to clipping volume ratios
2026
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• Palmetto GCSA Education Meeting
2024See more ATC Doublecut
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• 2024 Canadian Golf Course Management Conference
Slides You can download the slides here: Systematic improvement of golf course conditions, 3.1 MB PDF file 10 Things I’ve Learned About Clipping Volume, PDF file slides posted soon Systematic improvement notes I started off with this as an introduction: For a system of putting surface management, we can start with measuring the playing conditions that are produced. That’s going to inv...2024See more ATC Doublecut
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• Monthly maximum N or annual maximum N
I sometimes talk about maximum N. You may have heard me refer to the standard amount of N. I discussed that with Michael Bekken in this ATC Doublecut episode. What do I mean by these quantities of N? There was a question on the ATC YouTube channel about that, asking whether my mentions of a 30 kg/ha or 3 g/m2 value for Poa annua is a monthly or annual amount. The comment might have been deleted, o...2023Visit the page ATC Doublecut