Table:
text: 1981 Denver Broncos season
Schedule
Schedule
Week Date_ Opponent Result_ Game_site Record Attendance
1 September 6 Oakland Raiders W 9–7 Mile High Stadium 1–0 74796
2 September 13 at Seattle Seahawks L 10–13 Kingdome 1–1 58513
3 September 20 Baltimore Colts W 28–10 Mile High Stadium 2–1 74804
4 September 27 San Diego Chargers W 42–24 Mile High Stadium 3–1 74822
5 October 4 at Oakland Raiders W 17–0 Oakland-Alameda County Coliseum 4–1 51035
6 October 11 Detroit Lions W 27–21 Mile High Stadium 5–1 74816
7 October 18 at Kansas City Chiefs L 14–28 Arrowhead Stadium 5–2 74672
8 October 25 at Buffalo Bills L 7–9 Rich Stadium 5–3 77757

Question: Which Denver Broncos NFL team in the 1981 season was the opponent contested on October 4th?