Yea I did a search just to see, I can see why this guy probably didn't get many offers, he is likely going to struggle big against alot of bullpen arms and most starters...
Japan's NPB (Nippon Professional Baseball), their average fastball is around 91-92 MPH, lower than MLB's ~94 MPH but rapidly increasing, with top pitchers hitting 95+ MPH, showing a significant jump in velocity recently.
Key Points for NPB Fastball Velocity:
General Average: Around 91.5 - 92 MPH in recent years.
Growth: Velocity in Japan is increasing faster than in MLB.
Comparison: Still lags MLB's average (around 93.6-94.2 MPH) but closing the gap.
Elite Pitchers: Top NPB arms can reach speeds comparable to MLB (95+ MPH).
So, expect fastball speeds in the low 90s for the average in Japan's top league, with upward trends.