Greinke does not have the highest WAR on his own team and he is actually 6th in the National League.
Code:
# Name Team W L SV G GS IP K/9 BB/9 HR/9 BABIP LOB% GB% HR/FB ERA FIP xFIP WAR
1 Max Scherzer Nationals 9 5 0 15 15 110.1 10.60 1.14 0.57 .245 81.1 % 34.4 % 5.5 % 1.79 2.03 2.83 4.2
2 Clayton Kershaw Dodgers 5 6 0 16 16 107.0 11.78 2.10 0.93 .304 71.0 % 50.8 % 17.2 % 3.20 2.61 2.11 2.9
3 Jacob deGrom Mets 8 5 0 15 15 100.1 8.97 1.61 0.63 .259 79.8 % 43.6 % 8.0 % 2.15 2.62 2.93 2.8
4 A.J. Burnett Pirates 6 3 0 15 15 98.1 7.87 2.47 0.27 .326 81.8 % 54.1 % 4.5 % 2.01 2.64 3.18 2.5
5 Jake Arrieta Cubs 7 5 0 15 15 98.0 9.46 2.11 0.73 .290 73.8 % 51.0 % 11.0 % 2.94 2.83 2.81 2.5
6 Zack Greinke Dodgers 5 2 0 15 15 100.2 7.87 1.70 0.63 .250 88.3 % 47.3 % 7.5 % 1.70 2.92 3.30 2.3
7 Gerrit Cole Pirates 11 3 0 15 15 95.2 9.60 2.35 0.56 .309 80.3 % 51.4 % 8.8 % 2.16 2.73 2.91 2.2
8 M. Bumgarner Giants 7 4 0 15 15 100.2 9.12 1.61 0.89 .289 79.2 % 40.4 % 10.0 % 3.04 3.02 3.12 2.2
9 Jason Hammel Cubs 5 2 0 14 14 91.2 9.03 1.57 0.88 .253 73.6 % 39.2 % 9.7 % 2.65 3.03 3.17 2.0
10 J. Zimmermann Nationals 5 5 0 15 15 92.0 6.16 1.86 0.49 .328 71.6 % 41.4 % 4.8 % 3.42 3.13 4.01 2.0