Compu-Picks looks at home-field advantage as a function of distance, and shows why distance is a contributing factor to home-field advantage.
Highlights:
Home field is impacted by distance, especially if the distance is large
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There is a sliding scale at work here, just like for home-field advantage as a whole
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The impact of distance appears to be slightly higher for non-BCS leagues
I'm also attaching the main table in case you want to see the big picture without dealing with the details from the article.
Same League Record | Within 500 km | 500 - 1000 km | 1000+ km | Total | ||||||||
Total BCS | 41 - 25 | 62.1% | 41 - 22 | 65.1% | 42 - 19 | 68.9% | 124 - 66 | 65.3% | ||||
Total | 61 - 42 | 59.2% | 66 - 34 | 66.0% | 82 - 31 | 72.6% | 209 - 107 | 66.1% | ||||
Home 1 Game better | Within 500 km | 500 - 1000 km | 1000+ km | Total | ||||||||
Total BCS | 50 - 18 | 73.5% | 43 - 18 | 70.5% | 33 - 16 | 67.3% | 126 - 52 | 70.8% | ||||
Total | 80 - 27 | 74.8% | 73 - 26 | 73.7% | 78 - 28 | 73.6% | 231 - 81 | 74.0% | ||||
Home 1 Game worse | Within 500 km | 500 - 1000 km | 1000+ km | Total | ||||||||
Total BCS | 21 - 29 | 42.0% | 28 - 41 | 40.6% | 36 - 29 | 55.4% | 85 - 99 | 46.2% | ||||
Total | 34 - 51 | 40.0% | 47 - 63 | 42.7% | 47 - 56 | 45.6% | 128 - 170 | 43.0% | ||||
Records Within One Game | Within 500 km | 500 - 1000 km | 1000+ km | Total | ||||||||
Total BCS | 112 - 72 | 60.9% | 112 - 81 | 58.0% | 111 - 64 | 63.4% | 335 - 217 | 60.7% | ||||
Total | 175 - 120 | 59.3% | 186 - 123 | 60.2% | 207 - 115 | 64.3% | 568 - 358 | 61.3% | ||||
Home 2+ Games better | Within 500 km | 500 - 1000 km | 1000+ km | Total | ||||||||
Total BCS | 169 - 7 | 96.0% | 168 - 15 | 91.8% | 134 - 9 | 93.7% | 471 - 31 | 93.8% | ||||
Total | 274 - 25 | 91.6% | 307 - 21 | 93.6% | 289 - 16 | 94.8% | 870 - 62 | 93.3% | ||||
Home 2+ Games worse | Within 500 km | 500 - 1000 km | 1000+ km | Total | ||||||||
Total BCS | 19 - 169 | 10.1% | 15 - 149 | 9.1% | 24 - 114 | 17.4% | 58 - 432 | 11.8% | ||||
Total | 33 - 277 | 10.6% | 29 - 288 | 9.1% | 38 - 248 | 13.3% | 100 - 813 | 11.0% | ||||