A light aircraft Flight Instructor landed on Runway 04 at RAC only to discover another light aircraft had landed essentially simultaneously in the opposite direction. Reporter advised the other pilot failed to make any position/intention reports on CTAF.

Narrative

We landed on Runway 04 after flying a right base entry to the runway. After touchdown we saw a light aircraft facing us on the opposite end in the last 1000 feet of the runway. I then made a right exit onto Runway 32-14 and contacted RAC UNICOM to verify the operation of the radio which came back positive. Considering the winds at the time Runway 04 was the proper runway to use so we assumed the other aircraft was taxiing on Runway 22. After a debrief with the pilot it became clear he landed on Runway 22 opposite to us; he claimed that he made position reports on every point of the pattern of which we heard none. Personnel on the ground confirmed that they had heard our radio transmission. The pilot of the other aircraft also admitted that he saw us on right base to Runway 04 when he was on short final to Runway 22. Why he did not discontinue the approach when faced with this is beyond me. Contributing factor against seeing the other aircraft earlier was the lack of received radio transmissions and the lack of a landing light on the other aircraft.