royal jersey gc -...
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Making great sport happen
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Royal Jersey Golf ClubEvening Presentation
• Founded in 1929• World’s largest sports turf consultancy and
research company• Working globally in 50 countries• Working with 2,100 clients every year• Advising 800+ golf clubs in UK & Ireland• Advice to Sports clubs, CWGC, ABMC and other
leading amenity sites.• 65 staff including specialist disciplines• Accredited centre for turfgrass research
Introduction to STRI
STRI Bingley, West Yorkshire, England
STRI Programme Key Statistics
• 8,861 measurements from 2,567 greens across UK, Ireland & Northern Europe.
• 1,659 parkland, 546 links and 362 heathland and 17 other.
• Data from 488 courses.• 1,573 measurements from 1,092 greens in 2016.• Championship to Municipal.• January to November each year.• Quantative assessment of grass composition.
Interesting statistics
• 6,947 soil samples submitted since 2010.• 77,715 Clegg drops since 2010.• 62,523 organic matter cores since 2010.• 77,715 moisture probe inserts since 2010.• 518 km walked with Trueness Meter since 2010.• 103,620 balls rolls down the Stimp since 2010.
Organic Matter 2016
Mean Soil Organic Matter Values (and Ranges) for all courses at 0-20 mm and 20-40 mm during 2016
Course Type0-20 mm Depth 20-40 mm Depth
OM Value (Range) OM Value (Range)
Parkland(649 greens)
7.7%(2.7-24.5)
5.0%(0.7-15.9)
Links(302 greens)
6.5%(2.8 to 17.8)
4.6%(1.0 to 8.5)
Royal Jersey Progress
0-20mm down 55% in 6 years! Well below links average and on target
20-40 down 33% in 6 years. Below links average and just above target
Lower levels on target.
• Links Average 5.8% - Target below 6 preferable below 4%
• Links Average 4.5 – Target 2-4%
Theta Probe Soil Moisture Meter
The Clegg Impact Hammer
Firm but receptive to a well struck shot. The good player has control of the ball:
The Links ball interaction
Direction of travel
Friction
Turf deforms but springs back
Ball skids forward but retains spin
Stops dead on 2nd
or 3rd bounce
This is not bad. It was just a different form of the game:
Target golf
Ball stops dead in pitch mark or spins backwards
Direction of travel
Average Links Surface Firmness & Soil Moisture 2009-2015
Mean Surface Firmness (and Range) & Soil Moisture for all Courses 2009-2015
Course Type
Year2009 2010 2011 2012 2013 2014 2015
Links 101 95 97 97 107 104 104
(100-140 Gravities) (78 to 134) (69 to 137) (62 to 130) (61 to 124) (71 to 164) (64 to 146) (70-142)
% Soil Moisture 22 22 25 28 22 23 24
Royal Jersey Progress
Soil moisture on target and below links average.
Firmness just above target and well above linksaverage. Significant improvement over last 6 years.
• Links Average 24% - Target 15-25%
• Links Average 104 – Target 105-125
STRI Trueness Meter™
Smoothness & Trueness 2016
Royal Jersey Progress
Smoothness on target and within the tournament range. Below the average links level.
Trueness improved by 40% in the last 6 years and now within the tournament range target. Now at average of links courses.
Green speed increased by 23% in last 6 years. Ontarget and above the average links green speed.
• Target 16-19mm/m average links at 22mm/m
• Target 5-8 mm/m, average links 7 mm/m
The Stimpmeter
Green speed statistics
Average Green Speed by Course Type 2009-2016
Course Type
Year
2009 2010 2011 2012 2013 2014 2015 2016
Parkland7 ft 9 in 8 ft 3 in 8 ft 3 in 8 ft 2 in 8 ft 7 in 8 ft 8 in 9 ft 0 in 8 ft 11 in(795 greens)
Links9 ft 1 in 9 ft 1 in 9 ft 1 in 9 ft 0 in 9 ft 2 in 9 ft 2 in 9 ft 6 in 9 ft 4 in( 562 greens)
Effect of sward type on performance
• Reduced organic matter leading to true links surface feel.• Increased firmness and reduced moisture.• Increased fine turf grasses.• Improved playing performance to a true links.
• Fairways more uniform with new system. (key is not green but linksy)
Key Improvements
2010 vs 2016
2010 2016
• Refining coarser grasses on greens, especially in spring.• Bemuda grass in play areas.• Improving the links environment and architecture.• The Sea Wall.
Challenges
