Bumps charts from 1980 to date.

1980: 126th BOAT RACE - Oxford by a canvas. Oxford 57, Cambridge 68. See Boat Race 1980s
On the start there was a clash, Oxford number 7 lost a sizeable portion of his blade and the number 6 rigger was bent. Cambridge was warned.
Oxford bow (Steve Francis) was becoming less effective and stopped altogether after Barnes Bridge. He was later found to have acute hepatitis.
Oxford with 7 men, 6½ blades and 6½ riggers pushed to 38 and held Cambridge off by a canvas.
1980: MEN'S HEAD OF THE RIVER - Oriel
1980: WOMEN'S HEAD OF THE RIVER - Somerville

1981: 127th BOAT RACE - Oxford by 8 lengths. Oxford 58, Cambridge 68. See Boat Race 1980s
Oxford's greatest finishing lead since 1878
1981: MEN'S HEAD OF THE RIVER - Oriel
1981: WOMEN'S HEAD OF THE RIVER - Somerville

1982: 128th BOAT RACE - Oxford by 3¼ lengths. Oxford 59, Cambridge 68. See Boat Race 1980s
1982: MEN'S HEAD OF THE RIVER - Oriel
1982: WOMEN'S HEAD OF THE RIVER - St Hugh's

1983: 129th BOAT RACE - Oxford by 4½ lengths. Oxford 60, Cambridge 68. See Boat Race 1980s
1983: MEN'S HEAD OF THE RIVER - Oriel
1983: WOMEN'S HEAD OF THE RIVER - St Hugh's

1984: 130th BOAT RACE - Oxford by 3¾ lengths. Oxford 61, Cambridge 68. See Boat Race 1980s
Cambridge, with 20 minutes to go, practising a start, rammed a barge and wrote off their boat. The race was postponed to the following day.
1984: MEN'S HEAD OF THE RIVER - Oriel
1984: WOMEN'S HEAD OF THE RIVER - St Hugh's

1985: 131st BOAT RACE - Oxford by 4¾ lengths. Oxford 62, Cambridge 68. See Boat Race 1980s
Oxford had won 10 consecutive races
1985: MEN'S HEAD OF THE RIVER - Christ Church
1985: WOMEN'S HEAD OF THE RIVER - Osler House

1986: 132nd BOAT RACE - Cambridge by 7 lengths. Oxford 62, Cambridge 69. See Boat Race 1980s
1986: MEN'S HEAD OF THE RIVER - New College
1986: WOMEN'S HEAD OF THE RIVER - Somerville

1987: 133rd BOAT RACE - Oxford by 4 lengths. Oxford 63, Cambridge 69. See Boat Race 1980s
The 1987 'mutiny' remains controversial more than 20 years later.
Oxford had lost the previous year, after a long run of success, and as the race drew closer 5 American athletes in the squad refused to row for coach Dan Topolski or President Donald Macdonald following disputes about selection and training methods.
To the surprise of many, Oxford, with a crew partially composed of oarsmen from the reserve team, went on to win the race.
Reported facts of the 'mutiny' still differ greatly depending on the source. Dan Topolski's book True Blue about the events is said by many to be biased, as is the subsequent film. Since many of the key figures, including Macdonald and the Americans have kept silent about the 'mutiny', it is unlikely that all the facts will ever emerge.
1987: MEN'S HEAD OF THE RIVER - Oriel
1987: WOMEN'S HEAD OF THE RIVER - Somerville

1988: 134th BOAT RACE - Oxford by 5½ lengths. Oxford 64, Cambridge 69. See Boat Race 1980s
1988: MEN'S HEAD OF THE RIVER - Oriel
1988: WOMEN'S HEAD OF THE RIVER - Osler House

1989: 134th BOAT RACE - Oxford by 2½ lengths. Oxford 65, Cambridge 69. See Boat Race 1980s
1989: MEN'S HEAD OF THE RIVER - Oriel
1989: WOMEN'S HEAD OF THE RIVER - Osler House

In 1989, after one hundred and thirty five boat races, the overall tally was: Oxford 65, Cambridge 69 (and one dead heat)
Oxford had won 13 out of the last 14 races.
Leadership in Overall Tally of Boat Race Wins:

1829 1989