GPS Accuracy-breakdown

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1 Devices then Condition

Device Condition Count Trueness (Average Distance Error) Standard Deviation 95% within
Garmin 910XT with Footpod Normal 600 1.53% (80.9 Ft/Mile 15.3 m/Km) 2.90% (152.9 Ft/Mile 29.0 m/Km) 5.79% (305.9 Ft/Mile 57.9 m/Km)
Under Bridge 42 0.42% (22.1 Ft/Mile 4.2 m/Km) 3.10% (163.6 Ft/Mile 31.0 m/Km) 6.20% (327.2 Ft/Mile 62.0 m/Km)
Post Bridge 40 4.34% (229.1 Ft/Mile 43.4 m/Km) 2.17% (114.7 Ft/Mile 21.7 m/Km) 4.34% (229.3 Ft/Mile 43.4 m/Km)
Turn Around 43 5.12% (270.2 Ft/Mile 51.2 m/Km) 2.59% (136.9 Ft/Mile 25.9 m/Km) 5.19% (273.9 Ft/Mile 51.9 m/Km)
Straight 122 0.29% (15.4 Ft/Mile 2.9 m/Km) 2.04% (107.8 Ft/Mile 20.4 m/Km) 4.08% (215.5 Ft/Mile 40.8 m/Km)
Power Line 90 2.10% (110.9 Ft/Mile 21.0 m/Km) 2.42% (127.9 Ft/Mile 24.2 m/Km) 4.84% (255.8 Ft/Mile 48.4 m/Km)
Mixed 725 1.83% (96.9 Ft/Mile 18.3 m/Km) 3.05% (161.1 Ft/Mile 30.5 m/Km) 6.10% (322.2 Ft/Mile 61.0 m/Km)
Garmin 205 Normal 917 1.39% (73.6 Ft/Mile 13.9 m/Km) 3.04% (160.3 Ft/Mile 30.4 m/Km) 6.07% (320.6 Ft/Mile 60.7 m/Km)
Under Bridge 66 1.38% (72.8 Ft/Mile 13.8 m/Km) 7.45% (393.2 Ft/Mile 74.5 m/Km) 14.89% (786.4 Ft/Mile 148.9 m/Km)
Post Bridge 66 2.16% (113.9 Ft/Mile 21.6 m/Km) 2.39% (126.4 Ft/Mile 23.9 m/Km) 4.79% (252.9 Ft/Mile 47.9 m/Km)
Turn Around 73 3.64% (192.3 Ft/Mile 36.4 m/Km) 2.59% (136.9 Ft/Mile 25.9 m/Km) 5.19% (273.9 Ft/Mile 51.9 m/Km)
Straight 196 0.48% (25.5 Ft/Mile 4.8 m/Km) 1.90% (100.2 Ft/Mile 19.0 m/Km) 3.80% (200.4 Ft/Mile 38.0 m/Km)
Power Line 127 1.40% (73.7 Ft/Mile 14.0 m/Km) 2.33% (123.0 Ft/Mile 23.3 m/Km) 4.66% (246.0 Ft/Mile 46.6 m/Km)
Mixed 1122 1.42% (75.1 Ft/Mile 14.2 m/Km) 3.51% (185.4 Ft/Mile 35.1 m/Km) 7.02% (370.8 Ft/Mile 70.2 m/Km)
Garmin 310XT with Footpod Normal 3293 2.10% (111.1 Ft/Mile 21.0 m/Km) 3.54% (187.0 Ft/Mile 35.4 m/Km) 7.08% (373.9 Ft/Mile 70.8 m/Km)
Under Bridge 221 2.97% (156.8 Ft/Mile 29.7 m/Km) 3.66% (193.1 Ft/Mile 36.6 m/Km) 7.31% (386.2 Ft/Mile 73.1 m/Km)
Post Bridge 188 4.10% (216.2 Ft/Mile 41.0 m/Km) 3.75% (197.9 Ft/Mile 37.5 m/Km) 7.50% (395.9 Ft/Mile 75.0 m/Km)
Turn Around 205 5.57% (294.2 Ft/Mile 55.7 m/Km) 4.17% (220.1 Ft/Mile 41.7 m/Km) 8.34% (440.3 Ft/Mile 83.4 m/Km)
Straight 697 0.76% (40.2 Ft/Mile 7.6 m/Km) 2.70% (142.8 Ft/Mile 27.0 m/Km) 5.41% (285.6 Ft/Mile 54.1 m/Km)
Power Line 515 2.57% (135.5 Ft/Mile 25.7 m/Km) 3.47% (183.4 Ft/Mile 34.7 m/Km) 6.95% (366.8 Ft/Mile 69.5 m/Km)
Mixed 3907 2.43% (128.3 Ft/Mile 24.3 m/Km) 3.70% (195.1 Ft/Mile 37.0 m/Km) 7.39% (390.3 Ft/Mile 73.9 m/Km)
iPhone 4s Normal 776 2.95% (155.6 Ft/Mile 29.5 m/Km) 3.46% (182.5 Ft/Mile 34.6 m/Km) 6.91% (365.0 Ft/Mile 69.1 m/Km)
Under Bridge 59 1.40% (74.0 Ft/Mile 14.0 m/Km) 3.40% (179.6 Ft/Mile 34.0 m/Km) 6.80% (359.1 Ft/Mile 68.0 m/Km)
Post Bridge 54 4.42% (233.5 Ft/Mile 44.2 m/Km) 3.01% (158.9 Ft/Mile 30.1 m/Km) 6.02% (317.8 Ft/Mile 60.2 m/Km)
Turn Around 62 6.62% (349.7 Ft/Mile 66.2 m/Km) 4.50% (237.6 Ft/Mile 45.0 m/Km) 9.00% (475.1 Ft/Mile 90.0 m/Km)
Straight 164 2.03% (107.4 Ft/Mile 20.3 m/Km) 2.89% (152.7 Ft/Mile 28.9 m/Km) 5.78% (305.3 Ft/Mile 57.8 m/Km)
Power Line 110 2.56% (135.2 Ft/Mile 25.6 m/Km) 2.90% (153.3 Ft/Mile 29.0 m/Km) 5.81% (306.7 Ft/Mile 58.1 m/Km)
Mixed 951 3.17% (167.6 Ft/Mile 31.7 m/Km) 3.66% (193.0 Ft/Mile 36.6 m/Km) 7.31% (386.0 Ft/Mile 73.1 m/Km)
Garmin 610 Normal 1626 2.98% (157.2 Ft/Mile 29.8 m/Km) 3.54% (186.9 Ft/Mile 35.4 m/Km) 7.08% (373.8 Ft/Mile 70.8 m/Km)
Under Bridge 104 2.49% (131.4 Ft/Mile 24.9 m/Km) 3.12% (164.8 Ft/Mile 31.2 m/Km) 6.24% (329.6 Ft/Mile 62.4 m/Km)
Post Bridge 104 5.28% (279.0 Ft/Mile 52.8 m/Km) 2.88% (152.0 Ft/Mile 28.8 m/Km) 5.76% (303.9 Ft/Mile 57.6 m/Km)
Turn Around 127 6.73% (355.1 Ft/Mile 67.3 m/Km) 2.73% (144.1 Ft/Mile 27.3 m/Km) 5.46% (288.2 Ft/Mile 54.6 m/Km)
Straight 359 0.95% (50.0 Ft/Mile 9.5 m/Km) 2.97% (156.8 Ft/Mile 29.7 m/Km) 5.94% (313.5 Ft/Mile 59.4 m/Km)
Power Line 213 3.53% (186.3 Ft/Mile 35.3 m/Km) 2.49% (131.2 Ft/Mile 24.9 m/Km) 4.97% (262.4 Ft/Mile 49.7 m/Km)
Mixed 1961 3.32% (175.1 Ft/Mile 33.2 m/Km) 3.59% (189.7 Ft/Mile 35.9 m/Km) 7.19% (379.4 Ft/Mile 71.9 m/Km)
Polar RC3 GPS Normal 1166 1.54% (81.2 Ft/Mile 15.4 m/Km) 3.74% (197.6 Ft/Mile 37.4 m/Km) 7.49% (395.3 Ft/Mile 74.9 m/Km)
Under Bridge 88 5.60% (295.7 Ft/Mile 56.0 m/Km) 7.77% (410.3 Ft/Mile 77.7 m/Km) 15.54% (820.6 Ft/Mile 155.4 m/Km)
Post Bridge 86 7.41% (391.2 Ft/Mile 74.1 m/Km) 4.96% (261.7 Ft/Mile 49.6 m/Km) 9.91% (523.3 Ft/Mile 99.1 m/Km)
Turn Around 93 5.76% (304.0 Ft/Mile 57.6 m/Km) 4.49% (237.3 Ft/Mile 44.9 m/Km) 8.99% (474.5 Ft/Mile 89.9 m/Km)
Straight 239 0.44% (23.0 Ft/Mile 4.4 m/Km) 2.70% (142.7 Ft/Mile 27.0 m/Km) 5.41% (285.4 Ft/Mile 54.1 m/Km)
Power Line 171 1.96% (103.7 Ft/Mile 19.6 m/Km) 3.59% (189.3 Ft/Mile 35.9 m/Km) 7.17% (378.7 Ft/Mile 71.7 m/Km)
Mixed 1433 2.41% (127.4 Ft/Mile 24.1 m/Km) 4.61% (243.7 Ft/Mile 46.1 m/Km) 9.23% (487.3 Ft/Mile 92.3 m/Km)
Garmin 310XT no Footpod Normal 1605 2.78% (146.7 Ft/Mile 27.8 m/Km) 3.99% (210.7 Ft/Mile 39.9 m/Km) 7.98% (421.5 Ft/Mile 79.8 m/Km)
Under Bridge 110 0.93% (49.3 Ft/Mile 9.3 m/Km) 4.23% (223.6 Ft/Mile 42.3 m/Km) 8.47% (447.1 Ft/Mile 84.7 m/Km)
Post Bridge 106 5.05% (266.8 Ft/Mile 50.5 m/Km) 3.56% (187.9 Ft/Mile 35.6 m/Km) 7.12% (375.8 Ft/Mile 71.2 m/Km)
Turn Around 124 5.98% (315.8 Ft/Mile 59.8 m/Km) 5.43% (286.7 Ft/Mile 54.3 m/Km) 10.86% (573.4 Ft/Mile 108.6 m/Km)
Straight 326 1.68% (88.5 Ft/Mile 16.8 m/Km) 3.21% (169.6 Ft/Mile 32.1 m/Km) 6.42% (339.2 Ft/Mile 64.2 m/Km)
Power Line 229 3.36% (177.4 Ft/Mile 33.6 m/Km) 3.56% (188.1 Ft/Mile 35.6 m/Km) 7.12% (376.1 Ft/Mile 71.2 m/Km)
Mixed 1945 3.00% (158.5 Ft/Mile 30.0 m/Km) 4.22% (222.6 Ft/Mile 42.2 m/Km) 8.43% (445.3 Ft/Mile 84.3 m/Km)
Garmin Fenix 2 Normal 640 2.08% (109.6 Ft/Mile 20.8 m/Km) 4.81% (253.8 Ft/Mile 48.1 m/Km) 9.61% (507.5 Ft/Mile 96.1 m/Km)
Under Bridge 38 2.74% (144.9 Ft/Mile 27.4 m/Km) 3.21% (169.3 Ft/Mile 32.1 m/Km) 6.41% (338.5 Ft/Mile 64.1 m/Km)
Post Bridge 38 8.34% (440.4 Ft/Mile 83.4 m/Km) 4.03% (212.7 Ft/Mile 40.3 m/Km) 8.06% (425.5 Ft/Mile 80.6 m/Km)
Turn Around 50 9.60% (507.0 Ft/Mile 96.0 m/Km) 4.03% (212.6 Ft/Mile 40.3 m/Km) 8.05% (425.3 Ft/Mile 80.5 m/Km)
Straight 153 0.14% (7.4 Ft/Mile 1.4 m/Km) 4.01% (212.0 Ft/Mile 40.1 m/Km) 8.03% (424.0 Ft/Mile 80.3 m/Km)
Power Line 74 1.51% (80.0 Ft/Mile 15.1 m/Km) 4.99% (263.3 Ft/Mile 49.9 m/Km) 9.98% (526.7 Ft/Mile 99.8 m/Km)
Mixed 766 2.64% (139.4 Ft/Mile 26.4 m/Km) 5.30% (279.9 Ft/Mile 53.0 m/Km) 10.60% (559.8 Ft/Mile 106.0 m/Km)
Garmin 10 Normal 834 8.15% (430.6 Ft/Mile 81.5 m/Km) 3.96% (209.0 Ft/Mile 39.6 m/Km) 7.92% (418.0 Ft/Mile 79.2 m/Km)
Under Bridge 62 3.65% (192.7 Ft/Mile 36.5 m/Km) 3.27% (172.5 Ft/Mile 32.7 m/Km) 6.53% (345.0 Ft/Mile 65.3 m/Km)
Post Bridge 62 12.66% (668.3 Ft/Mile 126.6 m/Km) 4.25% (224.3 Ft/Mile 42.5 m/Km) 8.50% (448.6 Ft/Mile 85.0 m/Km)
Turn Around 62 14.43% (761.6 Ft/Mile 144.3 m/Km) 4.85% (256.1 Ft/Mile 48.5 m/Km) 9.70% (512.2 Ft/Mile 97.0 m/Km)
Straight 162 5.85% (308.8 Ft/Mile 58.5 m/Km) 2.81% (148.3 Ft/Mile 28.1 m/Km) 5.62% (296.6 Ft/Mile 56.2 m/Km)
Power Line 129 8.28% (437.1 Ft/Mile 82.8 m/Km) 3.73% (196.8 Ft/Mile 37.3 m/Km) 7.46% (393.7 Ft/Mile 74.6 m/Km)
Mixed 1020 8.54% (450.7 Ft/Mile 85.4 m/Km) 4.54% (239.9 Ft/Mile 45.4 m/Km) 9.09% (479.9 Ft/Mile 90.9 m/Km)
Garmin 620 Normal 1784 7.88% (415.8 Ft/Mile 78.8 m/Km) 4.47% (235.8 Ft/Mile 44.7 m/Km) 8.93% (471.7 Ft/Mile 89.3 m/Km)
Under Bridge 99 5.84% (308.3 Ft/Mile 58.4 m/Km) 7.29% (384.8 Ft/Mile 72.9 m/Km) 14.58% (769.6 Ft/Mile 145.8 m/Km)
Post Bridge 98 11.16% (589.4 Ft/Mile 111.6 m/Km) 6.50% (343.0 Ft/Mile 65.0 m/Km) 12.99% (686.1 Ft/Mile 129.9 m/Km)
Turn Around 136 14.76% (779.2 Ft/Mile 147.6 m/Km) 6.34% (334.7 Ft/Mile 63.4 m/Km) 12.68% (669.4 Ft/Mile 126.8 m/Km)
Straight 397 5.77% (304.4 Ft/Mile 57.7 m/Km) 3.06% (161.4 Ft/Mile 30.6 m/Km) 6.11% (322.7 Ft/Mile 61.1 m/Km)
Power Line 237 8.13% (429.4 Ft/Mile 81.3 m/Km) 3.77% (199.2 Ft/Mile 37.7 m/Km) 7.54% (398.3 Ft/Mile 75.4 m/Km)
Mixed 2117 8.37% (442.2 Ft/Mile 83.7 m/Km) 5.22% (275.7 Ft/Mile 52.2 m/Km) 10.44% (551.3 Ft/Mile 104.4 m/Km)

2 Condition then Devices

Condition Device Count Trueness (Average Distance Error) Standard Deviation 95% within
Normal Garmin 910XT with Footpod 600 1.53% (80.9 Ft/Mile 15.3 m/Km) 2.90% (152.9 Ft/Mile 29.0 m/Km) 5.79% (305.9 Ft/Mile 57.9 m/Km)
Garmin 205 917 1.39% (73.6 Ft/Mile 13.9 m/Km) 3.04% (160.3 Ft/Mile 30.4 m/Km) 6.07% (320.6 Ft/Mile 60.7 m/Km)
Garmin 310XT with Footpod 3293 2.10% (111.1 Ft/Mile 21.0 m/Km) 3.54% (187.0 Ft/Mile 35.4 m/Km) 7.08% (373.9 Ft/Mile 70.8 m/Km)
iPhone 4s 776 2.95% (155.6 Ft/Mile 29.5 m/Km) 3.46% (182.5 Ft/Mile 34.6 m/Km) 6.91% (365.0 Ft/Mile 69.1 m/Km)
Garmin 610 1626 2.98% (157.2 Ft/Mile 29.8 m/Km) 3.54% (186.9 Ft/Mile 35.4 m/Km) 7.08% (373.8 Ft/Mile 70.8 m/Km)
Polar RC3 GPS 1166 1.54% (81.2 Ft/Mile 15.4 m/Km) 3.74% (197.6 Ft/Mile 37.4 m/Km) 7.49% (395.3 Ft/Mile 74.9 m/Km)
Garmin 310XT no Footpod 1605 2.78% (146.7 Ft/Mile 27.8 m/Km) 3.99% (210.7 Ft/Mile 39.9 m/Km) 7.98% (421.5 Ft/Mile 79.8 m/Km)
Garmin Fenix 2 640 2.08% (109.6 Ft/Mile 20.8 m/Km) 4.81% (253.8 Ft/Mile 48.1 m/Km) 9.61% (507.5 Ft/Mile 96.1 m/Km)
Garmin 10 834 8.15% (430.6 Ft/Mile 81.5 m/Km) 3.96% (209.0 Ft/Mile 39.6 m/Km) 7.92% (418.0 Ft/Mile 79.2 m/Km)
Garmin 620 1784 7.88% (415.8 Ft/Mile 78.8 m/Km) 4.47% (235.8 Ft/Mile 44.7 m/Km) 8.93% (471.7 Ft/Mile 89.3 m/Km)
All 13241 3.37% (178.2 Ft/Mile 33.7 m/Km) 4.45% (234.8 Ft/Mile 44.5 m/Km) 8.89% (469.5 Ft/Mile 88.9 m/Km)
Under Bridge Garmin 910XT with Footpod 42 0.42% (22.1 Ft/Mile 4.2 m/Km) 3.10% (163.6 Ft/Mile 31.0 m/Km) 6.20% (327.2 Ft/Mile 62.0 m/Km)
Garmin 205 66 1.38% (72.8 Ft/Mile 13.8 m/Km) 7.45% (393.2 Ft/Mile 74.5 m/Km) 14.89% (786.4 Ft/Mile 148.9 m/Km)
Garmin 310XT with Footpod 221 2.97% (156.8 Ft/Mile 29.7 m/Km) 3.66% (193.1 Ft/Mile 36.6 m/Km) 7.31% (386.2 Ft/Mile 73.1 m/Km)
iPhone 4s 59 1.40% (74.0 Ft/Mile 14.0 m/Km) 3.40% (179.6 Ft/Mile 34.0 m/Km) 6.80% (359.1 Ft/Mile 68.0 m/Km)
Garmin 610 104 2.49% (131.4 Ft/Mile 24.9 m/Km) 3.12% (164.8 Ft/Mile 31.2 m/Km) 6.24% (329.6 Ft/Mile 62.4 m/Km)
Polar RC3 GPS 88 5.60% (295.7 Ft/Mile 56.0 m/Km) 7.77% (410.3 Ft/Mile 77.7 m/Km) 15.54% (820.6 Ft/Mile 155.4 m/Km)
Garmin 310XT no Footpod 110 0.93% (49.3 Ft/Mile 9.3 m/Km) 4.23% (223.6 Ft/Mile 42.3 m/Km) 8.47% (447.1 Ft/Mile 84.7 m/Km)
Garmin Fenix 2 38 2.74% (144.9 Ft/Mile 27.4 m/Km) 3.21% (169.3 Ft/Mile 32.1 m/Km) 6.41% (338.5 Ft/Mile 64.1 m/Km)
Garmin 10 62 3.65% (192.7 Ft/Mile 36.5 m/Km) 3.27% (172.5 Ft/Mile 32.7 m/Km) 6.53% (345.0 Ft/Mile 65.3 m/Km)
Garmin 620 99 5.84% (308.3 Ft/Mile 58.4 m/Km) 7.29% (384.8 Ft/Mile 72.9 m/Km) 14.58% (769.6 Ft/Mile 145.8 m/Km)
All 889 2.50% (131.9 Ft/Mile 25.0 m/Km) 5.48% (289.5 Ft/Mile 54.8 m/Km) 10.97% (579.1 Ft/Mile 109.7 m/Km)
Post Bridge Garmin 910XT with Footpod 40 4.34% (229.1 Ft/Mile 43.4 m/Km) 2.17% (114.7 Ft/Mile 21.7 m/Km) 4.34% (229.3 Ft/Mile 43.4 m/Km)
Garmin 205 66 2.16% (113.9 Ft/Mile 21.6 m/Km) 2.39% (126.4 Ft/Mile 23.9 m/Km) 4.79% (252.9 Ft/Mile 47.9 m/Km)
Garmin 310XT with Footpod 188 4.10% (216.2 Ft/Mile 41.0 m/Km) 3.75% (197.9 Ft/Mile 37.5 m/Km) 7.50% (395.9 Ft/Mile 75.0 m/Km)
iPhone 4s 54 4.42% (233.5 Ft/Mile 44.2 m/Km) 3.01% (158.9 Ft/Mile 30.1 m/Km) 6.02% (317.8 Ft/Mile 60.2 m/Km)
Garmin 610 104 5.28% (279.0 Ft/Mile 52.8 m/Km) 2.88% (152.0 Ft/Mile 28.8 m/Km) 5.76% (303.9 Ft/Mile 57.6 m/Km)
Polar RC3 GPS 86 7.41% (391.2 Ft/Mile 74.1 m/Km) 4.96% (261.7 Ft/Mile 49.6 m/Km) 9.91% (523.3 Ft/Mile 99.1 m/Km)
Garmin 310XT no Footpod 106 5.05% (266.8 Ft/Mile 50.5 m/Km) 3.56% (187.9 Ft/Mile 35.6 m/Km) 7.12% (375.8 Ft/Mile 71.2 m/Km)
Garmin Fenix 2 38 8.34% (440.4 Ft/Mile 83.4 m/Km) 4.03% (212.7 Ft/Mile 40.3 m/Km) 8.06% (425.5 Ft/Mile 80.6 m/Km)
Garmin 10 62 12.66% (668.3 Ft/Mile 126.6 m/Km) 4.25% (224.3 Ft/Mile 42.5 m/Km) 8.50% (448.6 Ft/Mile 85.0 m/Km)
Garmin 620 98 11.16% (589.4 Ft/Mile 111.6 m/Km) 6.50% (343.0 Ft/Mile 65.0 m/Km) 12.99% (686.1 Ft/Mile 129.9 m/Km)
All 842 6.23% (328.8 Ft/Mile 62.3 m/Km) 5.05% (266.8 Ft/Mile 50.5 m/Km) 10.11% (533.6 Ft/Mile 101.1 m/Km)
Turn Around Garmin 910XT with Footpod 43 5.12% (270.2 Ft/Mile 51.2 m/Km) 2.59% (136.9 Ft/Mile 25.9 m/Km) 5.19% (273.9 Ft/Mile 51.9 m/Km)
Garmin 205 73 3.64% (192.3 Ft/Mile 36.4 m/Km) 2.59% (136.9 Ft/Mile 25.9 m/Km) 5.19% (273.9 Ft/Mile 51.9 m/Km)
Garmin 310XT with Footpod 205 5.57% (294.2 Ft/Mile 55.7 m/Km) 4.17% (220.1 Ft/Mile 41.7 m/Km) 8.34% (440.3 Ft/Mile 83.4 m/Km)
iPhone 4s 62 6.62% (349.7 Ft/Mile 66.2 m/Km) 4.50% (237.6 Ft/Mile 45.0 m/Km) 9.00% (475.1 Ft/Mile 90.0 m/Km)
Garmin 610 127 6.73% (355.1 Ft/Mile 67.3 m/Km) 2.73% (144.1 Ft/Mile 27.3 m/Km) 5.46% (288.2 Ft/Mile 54.6 m/Km)
Polar RC3 GPS 93 5.76% (304.0 Ft/Mile 57.6 m/Km) 4.49% (237.3 Ft/Mile 44.9 m/Km) 8.99% (474.5 Ft/Mile 89.9 m/Km)
Garmin 310XT no Footpod 124 5.98% (315.8 Ft/Mile 59.8 m/Km) 5.43% (286.7 Ft/Mile 54.3 m/Km) 10.86% (573.4 Ft/Mile 108.6 m/Km)
Garmin Fenix 2 50 9.60% (507.0 Ft/Mile 96.0 m/Km) 4.03% (212.6 Ft/Mile 40.3 m/Km) 8.05% (425.3 Ft/Mile 80.5 m/Km)
Garmin 10 62 14.43% (761.6 Ft/Mile 144.3 m/Km) 4.85% (256.1 Ft/Mile 48.5 m/Km) 9.70% (512.2 Ft/Mile 97.0 m/Km)
Garmin 620 136 14.76% (779.2 Ft/Mile 147.6 m/Km) 6.34% (334.7 Ft/Mile 63.4 m/Km) 12.68% (669.4 Ft/Mile 126.8 m/Km)
All 975 7.75% (409.0 Ft/Mile 77.5 m/Km) 5.80% (306.0 Ft/Mile 58.0 m/Km) 11.59% (612.0 Ft/Mile 115.9 m/Km)
Straight Garmin 910XT with Footpod 122 0.29% (15.4 Ft/Mile 2.9 m/Km) 2.04% (107.8 Ft/Mile 20.4 m/Km) 4.08% (215.5 Ft/Mile 40.8 m/Km)
Garmin 205 196 0.48% (25.5 Ft/Mile 4.8 m/Km) 1.90% (100.2 Ft/Mile 19.0 m/Km) 3.80% (200.4 Ft/Mile 38.0 m/Km)
Garmin 310XT with Footpod 697 0.76% (40.2 Ft/Mile 7.6 m/Km) 2.70% (142.8 Ft/Mile 27.0 m/Km) 5.41% (285.6 Ft/Mile 54.1 m/Km)
iPhone 4s 164 2.03% (107.4 Ft/Mile 20.3 m/Km) 2.89% (152.7 Ft/Mile 28.9 m/Km) 5.78% (305.3 Ft/Mile 57.8 m/Km)
Garmin 610 359 0.95% (50.0 Ft/Mile 9.5 m/Km) 2.97% (156.8 Ft/Mile 29.7 m/Km) 5.94% (313.5 Ft/Mile 59.4 m/Km)
Polar RC3 GPS 239 0.44% (23.0 Ft/Mile 4.4 m/Km) 2.70% (142.7 Ft/Mile 27.0 m/Km) 5.41% (285.4 Ft/Mile 54.1 m/Km)
Garmin 310XT no Footpod 326 1.68% (88.5 Ft/Mile 16.8 m/Km) 3.21% (169.6 Ft/Mile 32.1 m/Km) 6.42% (339.2 Ft/Mile 64.2 m/Km)
Garmin Fenix 2 153 0.14% (7.4 Ft/Mile 1.4 m/Km) 4.01% (212.0 Ft/Mile 40.1 m/Km) 8.03% (424.0 Ft/Mile 80.3 m/Km)
Garmin 10 162 5.85% (308.8 Ft/Mile 58.5 m/Km) 2.81% (148.3 Ft/Mile 28.1 m/Km) 5.62% (296.6 Ft/Mile 56.2 m/Km)
Garmin 620 397 5.77% (304.4 Ft/Mile 57.7 m/Km) 3.06% (161.4 Ft/Mile 30.6 m/Km) 6.11% (322.7 Ft/Mile 61.1 m/Km)
All 2815 1.85% (97.5 Ft/Mile 18.5 m/Km) 3.52% (185.9 Ft/Mile 35.2 m/Km) 7.04% (371.8 Ft/Mile 70.4 m/Km)
Power Line Garmin 910XT with Footpod 90 2.10% (110.9 Ft/Mile 21.0 m/Km) 2.42% (127.9 Ft/Mile 24.2 m/Km) 4.84% (255.8 Ft/Mile 48.4 m/Km)
Garmin 205 127 1.40% (73.7 Ft/Mile 14.0 m/Km) 2.33% (123.0 Ft/Mile 23.3 m/Km) 4.66% (246.0 Ft/Mile 46.6 m/Km)
Garmin 310XT with Footpod 515 2.57% (135.5 Ft/Mile 25.7 m/Km) 3.47% (183.4 Ft/Mile 34.7 m/Km) 6.95% (366.8 Ft/Mile 69.5 m/Km)
iPhone 4s 110 2.56% (135.2 Ft/Mile 25.6 m/Km) 2.90% (153.3 Ft/Mile 29.0 m/Km) 5.81% (306.7 Ft/Mile 58.1 m/Km)
Garmin 610 213 3.53% (186.3 Ft/Mile 35.3 m/Km) 2.49% (131.2 Ft/Mile 24.9 m/Km) 4.97% (262.4 Ft/Mile 49.7 m/Km)
Polar RC3 GPS 171 1.96% (103.7 Ft/Mile 19.6 m/Km) 3.59% (189.3 Ft/Mile 35.9 m/Km) 7.17% (378.7 Ft/Mile 71.7 m/Km)
Garmin 310XT no Footpod 229 3.36% (177.4 Ft/Mile 33.6 m/Km) 3.56% (188.1 Ft/Mile 35.6 m/Km) 7.12% (376.1 Ft/Mile 71.2 m/Km)
Garmin Fenix 2 74 1.51% (80.0 Ft/Mile 15.1 m/Km) 4.99% (263.3 Ft/Mile 49.9 m/Km) 9.98% (526.7 Ft/Mile 99.8 m/Km)
Garmin 10 129 8.28% (437.1 Ft/Mile 82.8 m/Km) 3.73% (196.8 Ft/Mile 37.3 m/Km) 7.46% (393.7 Ft/Mile 74.6 m/Km)
Garmin 620 237 8.13% (429.4 Ft/Mile 81.3 m/Km) 3.77% (199.2 Ft/Mile 37.7 m/Km) 7.54% (398.3 Ft/Mile 75.4 m/Km)
All 1895 3.66% (193.2 Ft/Mile 36.6 m/Km) 4.09% (215.8 Ft/Mile 40.9 m/Km) 8.17% (431.6 Ft/Mile 81.7 m/Km)
Mixed Garmin 910XT with Footpod 725 1.83% (96.9 Ft/Mile 18.3 m/Km) 3.05% (161.1 Ft/Mile 30.5 m/Km) 6.10% (322.2 Ft/Mile 61.0 m/Km)
Garmin 205 1122 1.42% (75.1 Ft/Mile 14.2 m/Km) 3.51% (185.4 Ft/Mile 35.1 m/Km) 7.02% (370.8 Ft/Mile 70.2 m/Km)
Garmin 310XT with Footpod 3907 2.43% (128.3 Ft/Mile 24.3 m/Km) 3.70% (195.1 Ft/Mile 37.0 m/Km) 7.39% (390.3 Ft/Mile 73.9 m/Km)
iPhone 4s 951 3.17% (167.6 Ft/Mile 31.7 m/Km) 3.66% (193.0 Ft/Mile 36.6 m/Km) 7.31% (386.0 Ft/Mile 73.1 m/Km)
Garmin 610 1961 3.32% (175.1 Ft/Mile 33.2 m/Km) 3.59% (189.7 Ft/Mile 35.9 m/Km) 7.19% (379.4 Ft/Mile 71.9 m/Km)
Polar RC3 GPS 1433 2.41% (127.4 Ft/Mile 24.1 m/Km) 4.61% (243.7 Ft/Mile 46.1 m/Km) 9.23% (487.3 Ft/Mile 92.3 m/Km)
Garmin 310XT no Footpod 1945 3.00% (158.5 Ft/Mile 30.0 m/Km) 4.22% (222.6 Ft/Mile 42.2 m/Km) 8.43% (445.3 Ft/Mile 84.3 m/Km)
Garmin Fenix 2 766 2.64% (139.4 Ft/Mile 26.4 m/Km) 5.30% (279.9 Ft/Mile 53.0 m/Km) 10.60% (559.8 Ft/Mile 106.0 m/Km)
Garmin 10 1020 8.54% (450.7 Ft/Mile 85.4 m/Km) 4.54% (239.9 Ft/Mile 45.4 m/Km) 9.09% (479.9 Ft/Mile 90.9 m/Km)
Garmin 620 2117 8.37% (442.2 Ft/Mile 83.7 m/Km) 5.22% (275.7 Ft/Mile 52.2 m/Km) 10.44% (551.3 Ft/Mile 104.4 m/Km)
All 15947 3.74% (197.7 Ft/Mile 37.4 m/Km) 4.80% (253.2 Ft/Mile 48.0 m/Km) 9.59% (506.4 Ft/Mile 95.9 m/Km)