| Border (km) | Country 1 | % Correct |
|---|---|---|
| 2057 | Canada | 98%
|
| 1040 | Canada | 98%
|
| 2057 | United States | 98%
|
| 1040 | United States | 98%
|
| 374 | United States | 98%
|
| 271 | United States | 98%
|
| 802 | Egypt | 96%
|
| 645 | Egypt | 96%
|
| 559 | Egypt | 96%
|
| 374 | Mexico | 96%
|
| 271 | Mexico | 96%
|
| 934 | Libya | 95%
|
| 802 | Libya | 95%
|
| 645 | Sudan | 95%
|
| 559 | Sudan | 95%
|
| 418 | Sudan | 95%
|
| 749 | Algeria | 94%
|
| 543 | Algeria | 94%
|
| 457 | Algeria | 94%
|
| 934 | Chad | 94%
|
| 418 | Chad | 94%
|
| 945 | Mali | 92%
|
| 749 | Mali | 92%
|
| 411 | Mali | 92%
|
| 543 | Niger | 92%
|
| 408 | Morocco | 91%
|
| 945 | Mauritania | 90%
|
| 457 | Mauritania | 90%
|
| 411 | Mauritania | 90%
|
| 408 | Mauritania | 90%
|
| 449 | Angola | 79%
|
| 449 | Namibia | 79%
|
| 407 | Namibia | 79%
|
| 476 | Ethiopia | 78%
|
| 429 | Kenya | 78%
|
| 408 | Kenya | 78%
|
| 476 | Somalia | 77%
|
| 408 | Somalia | 77%
|
| 429 | Tanzania | 77%
|
| 407 | Botswana | 76%
|
| 410 | Indonesia | 60%
|
| 410 | Papua New Guinea | 60%
|
| 409 | Kazakhstan | 51%
|
| 409 | Uzbekistan | 50%
|