Surbiton Lawn Speeds

Note 1: A 'Plummer' is defined as the length of time, in seconds, taken by a croquet ball struck by a mallet to travel exactly 35 yards (the length of a croquet court) before coming to rest.

Note 2: Penetrometer reading (1 bar = 1 atmospheric pressure): This is the amount of force required to drive a probe to the depth of a hoop carrot. The higher the reading the harder the ground. Hoops set in hard ground are generally more difficult to run than those in soft ground.

10.20 10.20 10.20 10.10 10.00 10.10 10.00 6mm 18°c 23-May 11.00 8mm 5mm
Lawn Number & Lawn Speed in Plummers and penetrometer readings (bar)Conditions
      1            2             3             4             5             6             7             8       Cutting heightWeather Date Time 7 day rain /
 7 day irrigation
10.2  10.2 10.2  10.1  10.0  10.1  10.0    6mm
18°c 		23-May-25 11.00 8mm / 5mm
10.3  10.4 10.4  10.4  10.4  9.8  9.5    6mm
24°c 		29-Apr-25 15.00 0mm / 0mm
10.4  10.6 10.1  10.4  10.2  10.6  10.2    6mm
14°c 		22-Apr-25 10.30 8mm / 0mm
11.5  12.0 12.4  13.0  12.8  12.2  11.6    4.5mm
31°c 		30-Jul-24 14.00 2mm / 0mm
11.8  11.4 11.6  11.1  11.8  11.9  11.2    5mm
24°c 		21-Jun-24 11.30 0mm / 0mm
11.1  10.9 10.9  11.1  11.2  11.1  10.8    5mm
16°c 		11-Jun-24 15.00 2mm / 0mm
11.1  11.1 11.1  10.7  11.0  10.7  10.6    5mm
18°c 		7-Jun-23 13.00 1mm / 0mm
9.8  11.0 10.8  11.1  11.4  11.2  10.5    4mm
20°c 		3-Aug-23 12.00 15mm / 0mm
10.1  11.7 12.2  11.6  11.8  11.3  11.1    4mm
22°c 		13-Jul-23 16.00 9mm / 0mm
13.6  13.9 13.7  14.8  14.7  13.6  13.6    5mm
32.2°c 		12-Aug-22 12.30 0mm / 5mm
14.1  14.4 14.3  14.0  14.5  14.2  13.9    5mm
24.9°c 		04-Aug-22 12.30 0mm / 0mm
13.3  13.5 13.7  12.7  13.3  13.2  12.8    5mm
24°c 		02-Aug-22 12.00 0mm / 0mm
12.3  12.2 12.7  13.0  12.7  12.4  11.5    5mm
29°c 		16-Jul-22 12.00 0mm / 9mm
12.9
(5.5)  		13.1
(5.5)  		12.7
(6.0)  		12.8
(6.0)  		12.5
(5.0)  		12.5
(3.5)  		11.8
(4.0)  		  5mm
24°c 		05-Jul-22 14.00 6mm / 6mm
10.4
(3.2)  		10.9
(3.2)  		10.7
(3.2)  		10.6
(3.1)  		10.4
(3.1)  		9.9
(3.0)  		9.9
(2.9)  		  4mm
24°c 		02-Jul-21 13.00 24mm / 0.0mm
10.2
(3.6)  		10.7
(4.0)  		10.5
(3.8)  		10.6
(3.8)  		10.3
(4.0)  		10.4
(2.9)  		10.3
(3.0)  		  6mm
11°c 		16- Apr-21 11.00 0.75mm / 6.00mm
9.9
(4.2)  		10.7
(3.8)  		10.7
(3.8)  		11.0
(3.2)  		10.5
(3.2)  		10.3
(3.2)  		11.0
(3.0)  		  6mm
11°c 		09- Apr-21 11.00 0mm / 0mm
8.6
(3.0)  		8.7
(3.2)  		8.7
(3.2)  		9.0
(3.0)  		8.8
(3.0)  		8.4*
(2.8)  		8.4
(2.6)  		  6/8*mm
10°c 		20- Mar-21 12.00 10mm / 0mm
10.410.510.710.910.510.410.1  5mm
18.5°c 		4- Sep-20 14.00
12.412.212.012.412.212.611.5  5mm
27°c 		30- Jul-20 14.00
11.911.511.411.411.611.510.5  5mm
25°c 		21- Jul-20 11.00
10.710.510.19.79.89.59.6  6mm
24°c 		26-May-20 12.00
11.011.411.510.911.310.710.7  4mm
23°c 		02-Aug-19 9.00
11.611.812.112.211.812.011.3  4mm
21°c 		02-Jul-19 9.15
11.211.411.712.011.712.411.010.6 4mm
24°c 		28-Jun-19 14.00
10.511.110.710.79.99.810.2  5mm
24°c 		25-May-19 14.00
9.810.510.410.49.59.89.8  6mm
14°c 		7-May-19 13.00
13.813.212.714.813.612.012.4  5mm
29.5°c 		3-Aug-18 13.00
11.712.212.512.212.211.312.4  5mm
28.5°c 		27-Jul-18 10.30
10.210.210.611.110.610.410.6  5mm
25°c 		06-Jul-18 10.00
11.011.010.610.710.310.810.4  5mm
20°c 		03-Aug-17 17.00
11.711.811.211.610.211.111.3  5mm
18.5°c 		12-Jun-17 16.30
11.211.111.011.19.59.910.5  5mm
20.5°c 		9-Jun-17 17.00
10.210.410.510.28.310.29.9  6mm
22°c 		2-Jun-17 15.00
11.611.811.411.4*7.010.510.7  6mm (*15)
15°c 		13-Apr-17 14.00
10.811.110.811.410.910.811.5  5mm
20°c 		30-Sep-16 14.00
11.410.911.511.311.411.211.2  5mm
23°c 		4-Aug-16 15.00
10.510.511.511.310.611.310.5  5mm
23°c 		29-Jul-16 13.00
10.610.811.110.710.710.610.6  5mm
16°c 		16-May-16 8.30
10.911.811.211.411.011.011.7  5mm
22°c 		6-May-16 15.00
10.19.29.210.19.88.58.9  8mm
8°c 		26-Feb-16 14.00
11.110.510.911.110.510.59.9  5mm
21°c 		03-Jul-15 13.00
11.111.711.611.711.610.410.8  5mm
22°c 		06-Aug-15 16.00
12.612.512.012.913.011.411.6  4mm
24°c 		11-Jul-15 9.00
12.212.111.612.112.711.411.2  4mm
25°c 		03-Jul-15 16.00
11.211.610.811.411.811.011.0  5mm
23°c 		26-Jun-15 17.00
11.111.110.311.410.910.410.1  5mm
20°c 		19-Jun-15 14.30
11.011.210.510.610.510.410.0  6mm
18°c 		12-May-15 14.00
10.410.010.410.410.39.99.6  6mm
14°c 		17-Apr-15 14.00
10.610.210.710.711.38.6*8.5*  6/8*mm
12°c 		01-Apr-15 13.00
10.59.010.210.510.06.9*6.5*  9/12*mm
13°c 		6-Mar-15 13.00
9.28.59.38.09.26.4*6.7*  12/20*mm
8°c 		21-Dec-14 14.00
11.611.612.011.811.4 11.811.5  5mm
27°c 		13-Jun-14 15.00
10.910.811.311.010.8 11.011.0  5mm
24°c 		06-Jun-14 15.30
10.910.710.711.011.3 10.711.4  6mm
23°c 		16-May-14 15.00
10.910.710.811.010.9 10.810.9  6mm
17°c 		17-Apr-14 14.00
8.28.78.6 8.68.6 7.57.8  12mm
10°c 		21-Feb-14 14.00
8.88.28.8 8.29.6 8.77.9  12mm
8°c 		01-Dec-13 10.00
12.112.712.0 12.212.4 12.211.211.6 4mm
24°c 		08-Aug-13 14.00
12.813.4 12.512.7 12.712.511.2  5mm
33°c 		22-Jul-13 14.00
10.811.3 11.010.8 10.910.910.8  5mm
26°c 		05-Jul-13 15.00
10.611.1 11.010.9 11.19.010.4  6mm
20°c 		04-Jun-13 15.00
10.110.4 10.610.7 10.2*7.610.6  6/*14mm
17°c 		10-May-13 14.00
10.59.9 10.610.5 10.4*10.4  6mm
7°c 		29-Mar-13 10.00
10.09.0 10.210.2 10.2*9.9  7mm
8°c 		14-Mar-13 14.30
9.58.9 9.88.8 9.68.78.7  10mm
6°c 		04-Feb-13 14.00
9.08.3 9.29.4 9.88.68.6  10mm
2°c 		02-Dec-12 14.30
11.1 11.0 11.110.6 10.710.1 10.4  5mm
16°c 		05-Oct-12 14.30
11.7 11.6 12.011.7 11.811.7 11.6  5mm
25°c 		09-Aug-12 17.00
12.1 12.6 12.311.5 11.711.9 11.8  6mm
24°c 		27-Jul-12 14.00
10.0 10.6 11.110.4 10.610.2 10.5  6mm
20°c 		20-Jul-12 14.00
11.2 10.4 11.810.7 10.5 11.4 11.3  6mm
21°c 		29-Jun-12 14.00
10.1 10.0 11.511.5 11.0 10.8 10.3  6mm
9°c 		5-Apr-12 17.00
9.9 9.9 11.211.0 10.8 10.6 9.7  6mm
20°c 		30-Mar-12 15.00
8.3 8.6 10.4 9.6 9.5 9.0 8.5  10mm
13°c 		2-Mar-12 15.00
11.2 11.2 10.9 10.6 10.5 10.5 11.2  5mm
25°c 		2-Sep-11 15.00
12.2 12.9 12.5 12.0 12.1 12.2 11.3 10.8 5mm
22°c 		1-Jul-11 14.00
10.9 11.6 11.5 11.1 11.1 10.8 10.6   6mm
22°c 		1-Jun-11 12.00
10.8 11.8 11.7 11.9 11.9 11.3 11.1   6mm
18°c 		13-May-11 15.00
10.0 11.1 10.5 10.9 10.4 9.8 9.9   6mm
24°c 		19-Apr-11 15.30
9.6 10.2 10.7 10.4 10.2 10.2 9.9   6mm
17°c 		15-Apr-11 17.00
9.0 9.2 10.0 10.9 9.9 9.8 9.2   6mm
16°c 		09-Apr-11 17.00
10.8 10.5 10.8 10.5 10.4 10.3 10.4   6mm
20°c 		13-Aug-10 18.00
11.1 11.4 10.9 11.00 10.7 10.4 9.7   6mm
24°c 		30-Jul-10 15.00
10.6 10.7 11.2 10.9 11.1 11.1 10.6   6mm
23°c 		16-Jul-10 15.00
11.5 12.3 12.5 12.2 11.8 11.8 11.1   6mm
26°c 		24-Jun-10 17.00
10.9 10.9 11.3 11.3 11.7 11.4 10.9   6mm
19°c 		18-Jun-10 16.00
10.9 11.1 11.8 11.4 11.7 12.1 11.7   6mm
17°c 		26-May-10 18.00
10.8 11.1 11.6 11.1 10.5 11.2 11.5   6mm
15°c 		14-May-10 12.00
10.5 11.2 11.2 11.4 11.4 10.5 10.5   6mm
14°c 		16-Apr-10 18.00
10.7 10.8 11.4 10.9 11.4 10.7 10.2   6mm
10°c 		1-Apr-10 16.00
12.9 12.2 12.0 12.4 11.7 10.9 11.4   6mm
20°c 		9-Sep-09 15.00
11.6 11.3 11.3 11.3 11.0 10.2 10.6   6mm
20°c 		4-Sep-09 16.00
11.0 11.2 10.7 10.7 10.2 10.0 10.3   6mm
24°c 		14-Aug-09 18.00
10.7 11.0 10.6 10.8 10.3 9.9 10.0   6mm
22°c 		04-Aug-09
12.4 12.8 12.4 12.4 11.9 11.1 11.6 12.2 6mm
22°c 		18-Jun-09
11.0 11.3 10.9 11.0 10.8 11.1 10.9  6mm
17°c 		15-May-09
10.7 10.9 11.2 11.1 11.0 10.8 10.8   6mm
14°c 		17-Apr-09
10.6 11.2 11.3 11.4 11.2 11.3 11.3   6mm
14°c 		09-Apr-09
10.2 10.8 11.9 10.7 11.2 10.7 9.7   6mm
13°c		 14-Mar-09
10.0 9.6 11.4 11.1 11.2 10.2 9.2   8mm
14°c 		27-Feb-09

Surbiton Croquet Club
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NF 24/05/25

Updated 24.v.25
surbitoncroquet.org.uk/surbiton/membership/lawnspeed/lawnspeed.asp