| All-time record | Played 2072, Won 749, Drawn 388, Lost 935 |
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| Record win in all competitions | Deportivo León 7–0 New Lincoln University — 1987/88 Islands First Division, Deportivo León 7–0 Baptist Railway Athletic — 1995/96 Islands First Division |
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| Record home win in all competitions | Deportivo León 7–0 New Lincoln University — 1987/88 Islands First Division, Deportivo León 7–0 Baptist Railway Athletic — 1995/96 Islands First Division |
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| Record away win in all competitions | Whitburn Carew 1–7 Deportivo León — 1977/78 Islands League, Clifton Albion 0–6 Deportivo León — 1990/91 Islands First Division, Durham West End 0–6 Deportivo León — 1991/92 Islands League |
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| Record win in the league | Deportivo León 7–0 New Lincoln University — 1987/88 Islands First Division, Deportivo León 7–0 Baptist Railway Athletic — 1995/96 Islands First Division |
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| Record home win in the league | Deportivo León 7–0 New Lincoln University — 1987/88 Islands First Division, Deportivo León 7–0 Baptist Railway Athletic — 1995/96 Islands First Division |
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| Record away win in the league | Whitburn Carew 1–7 Deportivo León — 1977/78 Islands League, Clifton Albion 0–6 Deportivo León — 1990/91 Islands First Division, Durham West End 0–6 Deportivo León — 1991/92 Islands League |
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| Record loss in all competitions | Hardwick Rovers 9–0 Deportivo León — 2006/07 FA Cup Second Round Replay, East Camberwell United 9–0 Deportivo León — 2018/19 Brados Cup Second Round |
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| Record home loss in all competitions | Deportivo León 1–8 East Camberwell United — 1995/96 Brados Cup First Round |
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| Record away loss in all competitions | Hardwick Rovers 9–0 Deportivo León — 2006/07 FA Cup Second Round Replay, East Camberwell United 9–0 Deportivo León — 2018/19 Brados Cup Second Round |
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| Record loss in the league | Sunnymede Rangers 6–0 Deportivo León — 1981/82 Beta League, La Robla 6–0 Deportivo León — 1981/82 Beta League, Bricknell Town 6–0 Deportivo León — 1988/89 Islands League, Deportivo León 1–7 West Walpool Juniors — 2002/03 Islands First Division, Deportivo León 0–6 Hoxbeth Amateurs — 2006/07 Islands First Division |
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| Record home loss in the league | Deportivo León 1–7 West Walpool Juniors — 2002/03 Islands First Division, Deportivo León 0–6 Hoxbeth Amateurs — 2006/07 Islands First Division |
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| Record away loss in the league | Sunnymede Rangers 6–0 Deportivo León — 1981/82 Beta League, La Robla 6–0 Deportivo León — 1981/82 Beta League, Bricknell Town 6–0 Deportivo León — 1988/89 Islands League |
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| Highest scoring game | Dockside Admirals 9–1 Deportivo León — 2021/22 Brados Cup First Round |
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| Most consecutive league wins | 13 — 1977/78 |
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| Most consecutive league draws | 5 — 1991/92 |
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| Most consecutive league defeats | 14 — 2011/12 |
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| Most consecutive league games without defeat | 13 — 1977/78 |
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| Most consecutive league games without victory | 18 — 1993/94 |
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| Most consecutive home league wins | 13 — 1977/78 |
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| Most consecutive home league defeats | 13 — 2010/11–2011/12 |
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| Most consecutive away league wins | 7 — 2018/19–2019/20 |
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| Most consecutive away league defeats | 17 — 1985/86–1986/87 |
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| Most consecutive home league games without defeat | 18 — 1995/96–1996/97 |
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| Most consecutive home league games without victory | 14 — 2010/11–2011/12 |
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| Most consecutive away league games without defeat | 12 — 2018/19–2019/20 |
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| Most consecutive away league games without victory | 24 — 1980/81–1981/82 |
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