Henry Armstrong vs. Baby Arizmendi (5th meeting)

Henry Armstrong 134 lbs beat Baby Arizmendi 136 lbs by PTS in round 10 of 10

• Date: 1939-01-10
• Location: Olympic Auditorium, Los Angeles, California, USA
• Referee: George Blake

According to the Los Angeles Times, Arizmendi only won one round, and had an even break in maybe three. As with their previous encounters, Arizmendi fought head-to-head with Armstrong the whole fight, with Arizmendi getting the worst of it. Arizmendi was cut over both eyes at the finish.