At 23:06, Wright's force began to detect Tanaka's ships on radar near Cape Esperance on Guadalcanal about 23,000 yards (21,000 m) away.
Pada pukul 23.06, radar kapal-kapal Wright mulai mendeteksi keberadaan armada Tanaka di dekat Tanjung Esperance, Guadalkanal yang jauhnya kira-kira 23000 yard (21000 m).