| All-time record | Played 2077, Won 767, Drawn 403, Lost 907 |
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| Record win in all competitions | Port Fowey Royals 7–0 New Lincoln University — 1985/86 Islands First Division, Port Fowey Royals 7–0 Courteney Villa — 2012/13 Islands First Division |
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| Record home win in all competitions | Port Fowey Royals 7–0 New Lincoln University — 1985/86 Islands First Division, Port Fowey Royals 7–0 Courteney Villa — 2012/13 Islands First Division |
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| Record away win in all competitions | Kintyre Coastguard 0–5 Port Fowey Royals — 1985/86 Islands First Division, Sancti Spiritus 0–5 Port Fowey Royals — 2000/01 Islands First Division |
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| Record win in the league | Port Fowey Royals 7–0 New Lincoln University — 1985/86 Islands First Division, Port Fowey Royals 7–0 Courteney Villa — 2012/13 Islands First Division |
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| Record home win in the league | Port Fowey Royals 7–0 New Lincoln University — 1985/86 Islands First Division, Port Fowey Royals 7–0 Courteney Villa — 2012/13 Islands First Division |
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| Record away win in the league | Kintyre Coastguard 0–5 Port Fowey Royals — 1985/86 Islands First Division, Sancti Spiritus 0–5 Port Fowey Royals — 2000/01 Islands First Division |
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| Record loss in all competitions | Port Fowey Royals 0–7 West Heath Rangers — 1991/92 FA Cup Second Round, Palmerston United 7–0 Port Fowey Royals — 2001/02 Islands First Division |
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| Record home loss in all competitions | Port Fowey Royals 0–7 West Heath Rangers — 1991/92 FA Cup Second Round |
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| Record away loss in all competitions | Palmerston United 7–0 Port Fowey Royals — 2001/02 Islands First Division |
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| Record loss in the league | Palmerston United 7–0 Port Fowey Royals — 2001/02 Islands First Division |
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| Record home loss in the league | Port Fowey Royals 0–5 Kintyre Coastguard — 1998/99 Islands First Division, Port Fowey Royals 0–5 Walpool Seagulls — 2017/18 Beta League |
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| Record away loss in the league | Palmerston United 7–0 Port Fowey Royals — 2001/02 Islands First Division |
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| Highest scoring game | Wincanton Athletic 3–7 Port Fowey Royals — 2025/26 Islands First Division |
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| Most consecutive league wins | 13 — 1983/84 |
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| Most consecutive league draws | 4 — 2024/25 |
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| Most consecutive league defeats | 12 — 1981/82 |
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| Most consecutive league games without defeat | 18 — 2012/13–2013/14 |
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| Most consecutive league games without victory | 18 — 1973/74–1974/75 |
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| Most consecutive home league wins | 11 — 1985/86 |
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| Most consecutive home league defeats | 9 — 1981/82–1982/83 |
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| Most consecutive away league wins | 7 — 2002/03 |
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| Most consecutive away league defeats | 15 — 2016/17–2017/18 |
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| Most consecutive home league games without defeat | 21 — 1984/85–1986/87 |
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| Most consecutive home league games without victory | 9 — 1981/82–1982/83, 1999/00–2000/01 |
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| Most consecutive away league games without defeat | 13 — 2002/03 |
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| Most consecutive away league games without victory | 30 — 2016/17–2018/19 |
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