With five weeks of the season nearly in the books, which pitchers have been the most dominant in baseball? We have seen a new story on Zack Greinke on a near daily basis, but Johan Santana has been even better, at least according to the statistic I created to identify the game's most dominant pitchers. SWHIP essentially combines WHIP with strikeouts per nine innings pitched, and it achieves precisely this. * Tim Lincecum led the big leagues in SWHIP in 2008 with a mark of 0.031. Pedro Martinez has the best career SWHIP amongst starters with -0.020 and also the best single season with -0.507 in 2000. Below are the top-10 starters and relievers in SWHIP through Thursday's games. Starters 1. Johan Santana: -0.459 2. Zack Greinke: -0.333 3. Dan Haren: -0.184 4. Tim Lincecum: -0.079 5. Javier Vazquez: -0.026 6. Chad Billingsley: 0.075 7. Jake Peavy: 0.087 8. Yovani Gallardo: 0.097 9. Felix Hernandez: 0.100 10. Erik Bedard: 0.105 Note: Daisuke Matsuzaka and Chien-Ming Wang are dead last on this list with SWHIPs of 2.459 and 4.667 respectively. Relievers 1. Jonathan Broxton: -1.286 2. Brian Bruney: -0.875 3. Scott Downs: -0.728 4. Heath Bell: -0.625 5. Andrew Bailey: -0.471 6. Rafael Soriano: -0.429 7. Kiki Calero: -0.397 8. Ryan Franklin: -0.382 9. Mike Gonzalez: -0.357 10. Dan Meyer: -0.231