Projected rotational velocity as a function of the 2D peculiar velocity for the 168 O-type normal and runaway stars in the rotation LS-SB1 subsample. LS systems are shown as green circles, while SB1 systems are shown as red squares. Normal and runaway stars are represented with empty and filled symbols, respectively. The three known HMXBs identified among SB1 systems are indicated with red crosses. The uncertainties of the data points, and vertical and horizontal lines are the same as in Fig. 1.