A novel bentgrass cultivar, designated `T-1`, is disclosed. The invention relates to the seeds of bentgrass cultivar `T-1`, to the plants of bentgrass `T-1` and to methods for producing a bentgrass plant produced by crossing the cultivar `T-1` with itself or another bentgrass variety. The invention further relates to hybrid bentgrass seeds and plants produced by crossing the cultivar `T-1` with another bentgrass cultivar.