Found this on SB Nation - looking at WAR/200 innings pitched (
https://www.beyondtheboxscore.com/20...-rate-stat-top) [he lists the % of games started because he broke out relievers in another table]
Rank Name Innings WAR WAR/200 IP GS%
1 Pedro Martinez 2827.5 75.9 5.37 85.92
2 Roger Clemens 4916.6 128.4 5.22 99.72
3 Lefty Grove 3940.6 98.3 4.99 74.19
4 Johan Santana 1709.7 42.1 4.92 75.48
5 Sandy Koufax 2324.4 54.5 4.69 79.09
6 Roy Halladay 2046.6 47.4 4.63 91.69
7 Randy Johnson 4135.4 91.8 4.44 97.57
8 Brandon Webb 1319.7 29.2 4.43 99.5
9 Bob Gibson 3884.4 85.6 4.41 91.29
10 Tom Seaver 4782.6 105.3 4.40 98.63
11 Roy Oswalt 1803.4 39.5 4.38 95.76
12 Walter Johnson 5914.7 127.7 4.32 83.04
13 Curt Schilling 3261 69.7 4.27 76.63
14 Bret Saberhagen 2562.6 54.7 4.27 92.98
15 Mike Mussina 3562.8 74.8 4.20 99.81
16 Teddy Higuera 1379.9 28.3 4.10 96.24
17 Harry Brecheen 1907.4 38.8 4.07 75.47
18 Kid Nichols 5056.3 102.3 4.05 90.48
19 Pete Alexander 5189.9 104.9 4.04 86.06
20 Dizzy Dean 1967.3 39.6 4.03 72.56
21 Kevin Brown 3256.3 64.8 3.98 97.94
22 Tim Hudson 2059.5 40.9 3.97 99.68
23 Cy Young 7354.8 146.0 3.97 89.96
24 David Cone 2898.8 57.5 3.97 93.11
25 C.C. Sabathia 1889.4 37.3 3.95 100