Bronny James had by far the best game of his professional basketball career on Thursday ... dropping 30 points in his G League road debut.
LeBron James' son stuffed the stat line by going 13-23 and adding three rebounds, two assists and a steal on the night ... although his notable performance didn't result in a dub, as the Valley Suns defeated the South Bay Lakers, 106-100.
It's certainly a step in the right direction for the 20-year-old former USC Trojan -- his previous G League high was 16 points .