WORLD CHAMPIONSHIPS MARATHON AND WALKS MEASUREMENT - May 26 & 27, 2001
CALCULATIONS OF MEASURED LENGTHS
CALCULATION OF CALIBRATION COURSE LENGTH          
   
PR, BC 13 X 30 metres plus 25.250 = 415.250  
LL, JM,JJ 8 X 50 metres plus 15.249 = 415.249  
KS, ML, GD 30 metre tape with mistaken endpoint, corrected later 415.300  
   
Temperature, C = 24  
   
Average of two best = 415.2495  
Temperature correction = 0.01927  
   
Corrected length = 415.2688  
   
A length of 415.27 metres is used in subsequent calculations.        
ALL CALCULATIONS USE AVERAGE CONSTANT AND
INCLUDE 1.001 SHORT COURSE PREVENTION FACTOR
DAY 1 - CALCULATION OF CONSTANTS            
   
  PR LL BC KS GD JM ML JJ
   
Precalibration 4548.8 6642.5 6765 5065 4757 4537 4949 4615
counts per ride 4549 6643 6766 5065 4756 4537 4948.5 4617
  4548.7 6642.5 6765 5064 4757 4536 4948.5 4615
  4549 6641 6764 5063 4755 4537 4948.5 4615
   
Average of 4 4548.875 6642.25 6765 5064.25 4756.25 4536.75 4948.625 4615.5
Precal constant, counts/m 10.96497 16.01101 16.3069 12.20727 11.46485 10.93574 11.92856 11.12557
   
                 
Postcalibration 4547 6640.5 6765 5062 4755 4536 4947.5 4614
counts per ride 4547.3 6642.5 6764 5064 4754 4538 4948 4613
  4546.7 6640.5 6763 5063 4755 4536 4948.5 4615
  4547.3 6640 6763.5 5062 4755 4535 4947.5 4614
   
Average of 4 4547.075 6640.875 6763.875 5062.75 4754.75 4536.25 4947.875 4614
Postcal constant, counts/m 10.96063 16.0077 16.30418 12.20366 11.46123 10.93454 11.92675 11.12195
   
Average constant, counts/m 10.9628 16.00935 16.30554 12.20547 11.46304 10.93514 11.92766 11.12376
Change, counts/km -4.3 -3.3 -2.7 -3.6 -3.6 -1.2 -1.8 -3.6
Change, parts per 10,000 -4.0 -2.1 -1.7 -3.0 -3.2 -1.1 -1.5 -3.3
DAY 1 - MEASURED LENGTHS              
   
Constant used PR LL BC KS GD JM ML JJ
Average constant, counts/m 10.9628 16.00935 16.30554 12.20547 11.46304 10.93514 11.92766 11.12376
   
Reference A - outside stadium  
Walk Start 84.47 84.29 84.45 86.27 84.62 84.59 84.59 84.95
Marathon Start 253.13 253.20 253.17 253.08 253.60 253.31 253.32 253.20
Finish 27.18 27.14 27.17 27.20 27.13 27.34 27.25 27.24
Walk Start 118.58 118.90 118.79 119.37 119.69 118.79 119.18 118.71
Marathon Start 252.95 253.07 253.04 253.41 253.42 253.31 253.36 253.15
Finish 27.14 27.12 27.17 27.20 27.22 27.25 27.16 27.19
Reference A - outside stadium 109.51 109.28 109.50 114.95 110.27 109.92 106.56 109.94
SUMMARY OF DAY 1                
   
  PR LL BC KS GD JM ML JJ
Marathon start to Reference A 535.36 535.52 535.68 542.13 537.73 536.62 533.51 536.24
Walk Start to A 389.59 389.48 389.71 395.56 390.91 390.48 387.08 390.29
Racewalk start to Reference A 389.59 389.48 389.71 395.56 390.91 390.48 387.08 390.29
Reference A to Finish 364.78 364.63 364.78 366.56 365.35 365.24 365.16 365.39
One Lap (Finish to Finish) 398.67 399.09 399.01 399.98 400.33 399.35 399.70 399.06
DAY 2 - CALCULATION OF CONSTANTS            
   
  PR LL BC KS GD JM ML JJ
   
First calibration 4555 6640 6760 5076 4762 4543 4957.5 4618
counts per ride 4555 6638 6758 5075 4762 4545 4956.5 4618
  4555.5 6638 6761 5075.5 4766 4545 4957 4617
  4555 6639.25 6760.5 5074.5 4762 4546 4956 4618
   
Average of 4 4555.125 6638.813 6759.875 5075.25 4763 4544.75 4956.75 4617.75
First cal constant, counts/m 10.98004 16.00272 16.29454 12.23379 11.48112 10.95503 11.94815 11.13099
   
                 
Second calibration 4552 6630 6758 5070 4756 4541 4952.5 4616
counts per ride 4553 6632.75 6755 5072 4757 4543 4952.5 4616
  4553 6629.25 6754 5070 4757 4541 4952.5 4616
  4552.5 6630.5 6755 5070 4756 4541 4952.5 4616
   
Average of 4 4552.625 6630.625 6755.5 5070.5 4756.5 4541.5 4952.5 4616
Second cal constant, counts/m 10.97401 15.98299 16.284 12.22234 11.46545 10.94719 11.9379 11.12678
   
                 
Third calibration 4551 6628.75 6752 5069 4755 4541 4951.5 4614
counts per ride 4551.5 6627.75 6752 5071 4755 4541 4951.5 4614
  4551 6628.25 6753 5070 4754 4541 4951.5 4614
  4550.5 6628.25 6751.5 5070 4754 4541 4951.5 4612
   
Average of 4 4551 6628.25 6752.125 5070 4754.5 4541 4951.5 4613.5
Third cal constant, counts/m 10.97009 15.97726 16.27586 12.22113 11.46063 10.94599 11.93549 11.12075
   
                 
Average of 1 & 2, counts/m 10.97702 15.99286 16.28927 12.22806 11.47328 10.95111 11.94302 11.12888
Change, counts/km -6.0 -19.7 -10.5 -11.4 -15.7 -7.8 -10.2 -4.2
Change, parts per 10,000 -5.5 -12.3 -6.5 -9.4 -13.7 -7.2 -8.6 -3.8
   
Average of 2 & 3, counts/m 10.97205 15.98013 16.27993 12.22174 11.46304 10.94659 11.9367 11.12376
Change, counts/km -3.9 -5.7 -8.1 -1.2 -4.8 -1.2 -2.4 -6.0
Change, parts per 10,000 -3.6 -3.6 -5.0 -1.0 -4.2 -1.1 -2.0 -5.4
DAY 2 - MEASURED LENGTHS - STADIUM AND MARATHON ROUTE        
   
Constant used PR LL BC KS GD JM ML JJ
Average of 1 & 2, counts/m 10.97702 15.99286 16.28927 12.22806 11.47328 10.95111 11.94302 11.12888
   
Reference 1 - CL Stadium Road  
Reference A - outside stadium 205.61 205.78 205.41 208.05 205.43 206.28 206.40 206.27
   
Reference A - outside stadium  
Reference 2 - Top of Exit Ramp 187.85 187.43 187.88 189.32 188.79 187.83 188.06 188.34
   
Reference 2 - Top of Exit Ramp  
5 km 4266.91 4268.41 4267.66 4268.71 4270.18 4267.69 4269.02 4266.47
10 km 5004.54 5005.67 5004.64 5004.39 5011.21 5007.07 5006.77 5004.10
15 km 5001.54 5001.17 5001.08 4999.32 5003.36 5001.50 5001.16 5000.05
20 km 4992.88 4993.32 4993.23 4992.21 4996.39 4995.02 4993.88 4991.07
Half Marathon 1097.84 1097.83 1098.21 1097.72 1098.29 1097.70 1098.05 1097.95
25 km 3900.97 3899.37 3900.17 3900.21 3902.89 3901.25 3900.69 3900.30
30 km 4998.53 4997.36 4997.89 5000.67 5002.23 4998.03 4999.82 4998.79
35 km 4998.26 4997.92 4999.06 4998.87 5001.71 4998.76 4999.32 4998.08
40 km 5002.27 5001.92 5002.62 5000.96 5005.19 5003.42 5004.01 5002.93
Reference 1 - CL Stadium Road 1657.74 1657.05 1657.53 1657.42 1658.55 1657.91 1657.79 1657.76
DAY 2 - RACEWALK LOOPS                
   
Constant used PR LL BC KS GD JM ML JJ
Average of 2 & 3, counts/m 10.97205 15.98013 16.27993 12.22174 11.46304 10.94659 11.9367 11.12376
   
Reference 2 - Top of Exit Ramp  
Reference 2 - Top of Exit Ramp 2854.25 2856.00 2855.36 2857.65 2858.40 2856.96 2857.41 2856.86
   
Begin Loop Arc  
Begin Loop Arc 1997.99 1997.75 1997.31 1998.08 1999.03 1998.34 1998.38 1997.71
SUMMARY OF MARATHON MEASUREMENTS              
  Shortest
  PR LL BC KS GD JM ML JJ Split
Marathon Start  
Reference A - outside stadium 535.36 535.52 535.68 542.13 537.73 536.62 533.51 536.24 533.51
   
Reference A - outside stadium  
Reference 2 - Top of Exit Ramp 187.85 187.43 187.88 189.32 188.79 187.83 188.06 188.34 187.43
   
Reference 2 - Top of Exit Ramp  
5 km 4266.91 4268.41 4267.66 4268.71 4270.18 4267.69 4269.02 4266.47 4266.47
10 km 5004.54 5005.67 5004.64 5004.39 5011.21 5007.07 5006.77 5004.10 5004.10
15 km 5001.54 5001.17 5001.08 4999.32 5003.36 5001.50 5001.16 5000.05 4999.32
20 km 4992.88 4993.32 4993.23 4992.21 4996.39 4995.02 4993.88 4991.07 4991.07
Half Marathon 1097.84 1097.83 1098.21 1097.72 1098.29 1097.70 1098.05 1097.95 1097.70
25 km 3900.97 3899.37 3900.17 3900.21 3902.89 3901.25 3900.69 3900.30 3899.37
30 km 4998.53 4997.36 4997.89 5000.67 5002.23 4998.03 4999.82 4998.79 4997.36
35 km 4998.26 4997.92 4999.06 4998.87 5001.71 4998.76 4999.32 4998.08 4997.92
40 km 5002.27 5001.92 5002.62 5000.96 5005.19 5003.42 5004.01 5002.93 5000.96
Reference 1 - CL Stadium Road 1657.74 1657.05 1657.53 1657.42 1658.55 1657.91 1657.79 1657.76 1657.05
   
Reference 1 - CL Stadium Road  
Reference A - outside stadium 205.61 205.78 205.41 208.05 205.43 206.28 206.40 206.27 205.41
   
Reference A - outside stadium  
Finish 364.78 364.63 364.78 366.56 365.35 365.24 365.16 365.39 364.63
   
Totals 42215.07 42213.37 42215.85 42226.52 42247.31 42224.33 42223.63 42213.72 42202.27
SUMMARY OF RACEWALK MEASUREMENTS            
   
Stadium-to-Stadium  
   
  PR LL BC KS GD JM ML JJ
Walk Start  
Reference A - outside stadium 389.59 389.48 389.71 395.56 390.91 390.48 387.08 390.29
Reference 2 - Top of Exit Ramp 187.85 187.43 187.88 189.32 188.79 187.83 188.06 188.34
Reference 2 - Top of Exit Ramp 2854.25 2856.00 2855.36 2857.65 2858.40 2856.96 2857.41 2856.86
Reference A - outside stadium 187.85 187.43 187.88 189.32 188.79 187.83 188.06 188.34
Finish 364.78 364.63 364.78 366.56 365.35 365.24 365.16 365.39
   
Totals 3984.31 3984.96 3985.62 3998.41 3992.23 3988.36 3985.77 3989.21
   
2 kilometre loop:  
   
  PR LL BC KS GD JM ML JJ
Begin Loop Arc  
Begin Loop Arc 1997.99 1997.75 1997.31 1998.08 1999.03 1998.34 1998.38 1997.71
PR LL BC KS GD JM ML JJ
Ref A to Ref A 3229.95 3230.86 3231.13 3236.29 3235.98 3232.63 3233.53 3233.53
PR 3229.946
LL 3230.855
BC 3231.125 Use 3231
JM 3232.632
ML 3233.526
JJ 3233.535
GD 3235.978
KS 3236.292