Glass run

A glass run for being attached to a door frame of an automobile and guiding an upward movement and a downward movement of the door glass, comprising:

• a bottom wall facing an end surface of the door glass;
• a side wall extending from a side edge of the bottom wall toward a center of the door glass;
• a seal lip section for sealing between the door glass and the door frame, the seal lip section extending from a tip of the side wall toward the bottom wall;
• and
• a partition wall provided between the side wall and the seal lip section, the partition wall having a reference surface containing (i) a first reference point located in the vicinity of a connection portion between the seal lip section and the side wall, (ii) a second reference point which is on the side wall and located closer to the bottom wall than the connection portion, and (iii) a third reference point located in the vicinity of a tip of the seal lip section,
• the second reference point or the third reference point being located the lowest in a top-to-bottom direction of the automobile among the first reference point, the second reference point, and the third reference point.