Možda:
1.
Kôd:
//Sport[@SportId="1"]//Match[Status[@Code="6" or @Code="7" or @Code="31"]]
2.
PHP kôd:
echo 'CategoryId: ' . $tournament_matches[0]->xpath("..")[0]['CategoryId'] . PHP_EOL;
echo 'SportId: ' . $tournament_matches[0]->xpath("../..")[0]['SportId'];