Couple people asked for this so I just did some quick searches on baseballreference. Below is a chart showing the number of seasons of data, the number of pitchers who averaged 200+ IP over that stretch and the number that averaged 180+ IP over that stretch (this includes the 200+ guys). 1. 34, 69 2. 21, 47 3. 21, 44 4. 21, 36 5. 16, 31 6. 16, 26 7. 13, 27 8. 9, 21 So when you sign a pitcher to a 6 year contract the odds aren't that great that he'll stay fully healthy for 6 years. Granted some retire, some haven't been in the league 6 years etc so the number is expected to be somewhat low. You only have to go up to 2 years to find less than 1 pitcher per team who averaged 200+ IP per season. 200+ IP seasons aren't anywhere near a common thing in baseball. Over that 8 season stretch there were a total of 340 seasons of 200+ IP or 42 per year, less than 1.5 pitchers per team and the trend seems to be going down not up. If you look at 180+ IP seasons there have been 562 over the past 8 seasons or 70 per season. Only a little bit over 2 pitchers per team reach 180+ any given year. Go down to 150+ and you find 774 or 97 per season, still just slightly more than 3 per team.