The 1977 World trials season consisted of twelve trials events. It began on 12 February, with round one in Newtownards, Ireland and ended with round twelve in Oberiberg, Switzerland on 25 September.
Yrjo Vesterinen would claim his second World trials championship in 1977, repeating his 1976 title.[1]
| Round | Date | Trial | Venue | Trial GP | |
|---|---|---|---|---|---|
| 1 | 12 February |  Ireland | Newtownards | 1) Malcolm Rathmell 2) John Reynolds 3) Rob Edwards | |
| 2 | 19 February |  Great Britain | Rhayader | 1) Malcolm Rathmell 2) Manuel Soler 3) Dave Thorpe | |
| 3 | 27 February |  Belgium | Bilstain | 1) Malcolm Rathmell 2) Ulf Karlson 3) Yrjo Vesterinen | |
| 4 | 6 March | Spain | Matadepera | 1) Yrjo Vesterinen 2) Martin Lampkin 3) Bernie Schreiber | |
| 5 | 13 March |  France | Sancerre | 1) Ulf Karlson 2) Martin Lampkin 3) Yrjo Vesterinen | |
| 6 | 20 March | Germany | Bielefeld | 1) Martin Lampkin 2) Bernie Schreiber 3) Rob Shepherd | |
| 7 | 29 May |  United States | Port Huron | 1) Charles Coutard 2) Marland Whaley 3) Mike Griffitts | |
| 8 | 5 June |  Canada | Chicoutimi | 1) Charles Coutard 2) Yrjo Vesterinen 3) Malcolm Rathmell | |
| 9 | 28 August |  Sweden | Huddingen | 1) Ulf Karlson 2) Bo Nilsson 3) Malcolm Rathmell | |
| 10 | 4 September |  Finland | Ekenas | 1) Rob Shepherd 2) Yrjo Vesterinen 3) Martin Lampkin | |
| 11 | 18 September |  Czechoslovakia | Ricany | 1) Yrjo Vesterinen 2) Rob Shepherd 3) Martin Lampkin | |
| 12 | 25 September | Switzerland | Oberiberg | 1) Ulf Karlson 2) Malcolm Rathmell 3) Rob Shepherd |
Points were awarded to the top ten finishers. All twelve rounds counted for the World Trials class.
| Pos | Rider | Machine | IRL | GBR | BEL | SPA | FRA | GER | USA | CAN | SWE | FIN | CZE | SWI | Pts | Notes | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1 | Yrjo Vesterinen | Bultaco | 4 | 6 | 3 | 1 | 3 | 5 | 10 | 2 | 4 | 2 | 1 | 6 | 107 | 1977 Finnish champion | |
| 2 | Ulf Karlson | Montesa | 5 | 8 | 2 | 4 | 1 | 6 | 8 | 6 | 1 | 5 | 4 | 1 | 101 | 1977 Swedish champion | |
| 3 | Malcolm Rathmell | Montesa | 1 | 1 | 1 | 7 | - | 4 | 9 | 3 | 3 | 8 | 5 | 2 | 100 | ||
| 4 | Martin Lampkin | Bultaco | 9 | 5 | 8 | 2 | 2 | 1 | 4 | 4 | 5 | 3 | 3 | 5 | 98 | winner of 1977 scottish 6 day & scott trials | |
| 5 | Rob Shepherd | HRC Honda | 8 | - | 4 | 8 | 9 | 3 | - | - | 6 | 1 | 2 | 3 | 68 | 1977 British champion | |
| 6 | Charles Coutard | Bultaco | 6 | 9 | - | 5 | 4 | - | 1 | 1 | 7 | 4 | - | - | 63 | 1977 French champion | |
| 7 | Bernie Schreiber | Bultaco | - | - | 5 | 3 | 5 | 2 | - | 7 | 8 | 6 | 8 | 7 | 53 | ||
| 8 | Manuel Soler | Bultaco | - | 2 | - | 6 | 8 | 8 | - | 9 | - | - | 6 | - | 30 | 1977 Spanish champion | |
| 9 | Nigel Birkett | Montesa | 7 | - | 6 | 9 | 7 | 7 | - | 8 | 10 | - | 10 | 9 | 26 | ||
| 10 | Marland Whaley | HRC Honda | - | - | - | - | - | - | 2 | - | - | - | - | 4 | 20 | 1977 US NATC champion[4] | |
| 11 | John Reynolds | Suzuki | 2 | 4 | - | - | - | - | - | - | - | - | - | - | 20 | ||
| 12 | Jean Marie LeJeune | Montesa | - | 7 | 7 | - | 6 | 9 | - | 10 | - | - | - | 8 | 19 | 1977 Belgian champion | |
| 13 | Mick Andrews | Yamaha | - | 10 | 10 | - | - | 10 | - | - | 9 | 7 | 7 | - | 13 | ||
| 14 | Bo Nilsson | Ossa | - | - | - | - | - | - | - | - | 2 | - | - | - | 12 | ||
| 15 | Don Sweet | Montesa | - | - | - | - | - | - | 6 | 5 | - | - | - | - | 11 | ||
| 16 | Mike Griffitts | Montesa | - | - | - | - | - | - | 3 | - | - | - | - | - | 10 | ||
| 16 | Dave Thorpe | Bultaco | - | 3 | - | - | - | - | - | - | - | - | - | - | 10 | ||
| 16 | Rob Edwards | Montesa | 3 | - | - | - | - | - | - | - | - | - | - | - | 10 | ||
| 19 | Mark Eggar | Honda | - | - | - | - | - | - | 5 | - | - | - | - | - | 6 | ||
| 20 | Lane Leavitt | Bultaco | - | - | - | - | - | - | 7 | - | - | - | - | - | 4 | ||
| 21 | Jean-Luc Colson | Montesa | - | - | 9 | - | - | - | - | - | - | - | 9 | - | 4 | ||
| 22 | Timo Ryysy | Bultaco | - | - | - | - | - | - | - | - | - | 9 | - | - | 2 | ||
| 23 | Tore Evertsson | Bultaco | - | - | - | 10 | 10 | - | - | - | - | - | - | - | 2 | ||
| 24 |  Fulvio Adamoli | Montesa | - | - | - | - | - | - | - | - | - | - | - | 10 | 1 | ||
| 24 | Jaime Subira | Montesa | - | - | - | - | - | - | - | - | - | 10 | - | - | 1 | ||
| 24 | Alan Lampkin | Bultaco | 10 | - | - | - | - | - | - | - | - | - | - | - | 1 |