Season 18 - Bunze0 (1st), Runner-up - Mr. Baseball World (wc). Playoffs - 13Baseballs, BobBoone
Season 17 - Honeyman (1st), Runner-up - tomwistar (wc). Playoffs - emart, BobBoone
Season 16 - BobBoone (1st), Runner-up - tomwistar. Playoffs - dacelo, Palanion (wc)
Season 15 - JOEOC (1st). Runner-up - Bunze0. Playoffs - 13Baseballs, Munich-Man (wc)
Season 14 -Tomwistar (3rd). Runner-up - Bunze0 (wc). Playoffs - Mr. Basebll World, JOEOC
Season 13 - Modmark47 (3rd). Runner-up - Bunze0. Playoffs - 13Baseballs, dacelo (wc)
Season 12 - Ggnringo (1st). Runner-up - dacelo. Playoffs - Palanion, denorien (wc)
Season 11 - 13Baseballs (1st). Runner-up - tomwistar (wc). Playoffs - Bunze0, dacelo
Season 10 - Tomwistar (2nd) (wc). Runner-up - Frank Bailey. Playoffs - JOEOC, ggnringo
Season 9 - Munich_Man (4th). Runner-up - ggnringo. Playoffs - Palanion, JOEOC (wc)
Season 8 - Modmark47 (2nd). Runner-up - horntsnest (wc). Playoffs - tomwistar, JOEOC
Season 7 - Munich_Man (3rd). Runner-up - tomwistar. Playoffs - JOEOC, horntsnest (wc)
Season 6 - Modmark47 (1st) (wc). Runner-up - tomwistar. Playoffs - errormagnate, Munich_Man
Season 5 - Munich_Man (2nd). Runner-up - horntsnest. Playoffs - sunsportsguy, Bunze0 (wc)
Season 4 - Frank Bailey (1st). Runner-up - Munich_Man (wc). Playoffs - B.o.b.b.y., horntsnest
Season 3 - Munich_Man (1st). Runner-up - horntsnest. Playoffs - TimOrz, boss_of_um (wc)
Season 2 - Tomwistar (1st). Runner-up - Munich_Man (wc). Playoffs - Frank Bailey, boss_of_um
Season 1 - TimOrz (1st) (wc). Runner-up - tomwistar. Playoffs - Frank Bailey, boss_of_um
Number in parentheses after the champion is the quantity of SBDL championships won.
Also note, for those who care, there have been three champs out of the wild card spot (nine finalists) through 18 seasons. Not an easy thing to do.