The Top 20 Pitching Seasons in the Last 25 Years

T7. Randy Johnson, Seattle Mariners (1995)

Before his time with the DBacks, the Big Unit made his mark with the Seattle Mariners, most notably in '95 when he finished the year 18-2 with 294 strikeouts in 30 starts. Those numbers came to a WAR of 9.5 and a FIP of 2.08 in 214.1 innings.

That season marked Johnson's first-ever Cy Young and the best of his 10 years with the Mariners.