Here is scenario in which SSG wins 10 additional games (75 total) but does not reach the postseason.

Here are the final standings in the scenario:
            Team	W	L	D	PCT	GB
              LG	83	58	3	0.5887	0.0
          Hanwha	78	62	4	0.5571	4.5
         Samsung	77	65	2	0.5423	6.5
              KT	74	64	6	0.5362	7.5
              NC	74	64	6	0.5362	7.5
             SSG	75	65	4	0.5357	7.5
           Lotte	65	71	8	0.4779	15.5
             KIA	65	73	6	0.4710	16.5
          Doosan	57	80	7	0.4161	24.0
          Kiwoom	46	92	6	0.3333	35.5

To construct the scenario, we start with the current standings:
            Team	W	L	D	GL	PCT	GB
              LG	80	49	3	12	0.620	0.0
          Hanwha	76	53	3	12	0.589	4.0
             SSG	65	60	4	15	0.520	13.0
              KT	65	63	4	12	0.508	14.5
         Samsung	66	64	2	12	0.508	14.5
           Lotte	63	64	6	11	0.496	16.0
              NC	61	62	6	15	0.496	16.0
             KIA	61	65	4	14	0.484	17.5
          Doosan	56	70	6	12	0.444	22.5
          Kiwoom	43	86	4	11	0.333	37.0

The next two tables show, respectively, how many of their remaining games each team wins and ties against each of the other teams in the scenario:

					Scenario Additional Wins Against
Team	Doosan	Hanwha	KIA	Kiwoom	KT	LG	Lotte	NC	Samsung	SSG	Wins
Doosan	-	0	0	0	0	1	0	0	0	0	1
Hanwha	1	-	0	1	0	0	0	0	0	0	2
KIA	0	3	-	0	0	0	1	0	0	0	4
Kiwoom	3	0	0	-	0	0	0	0	0	0	3
KT	0	2	0	0	-	4	0	1	1	1	9
LG	0	3	0	0	0	-	0	0	0	0	3
Lotte	0	0	0	1	0	1	-	0	0	0	2
NC	1	0	4	1	0	2	2	-	0	3	13
Samsung	1	0	2	2	0	1	3	1	-	1	11
SSG	4	1	2	1	1	0	1	0	0	-	10
-----------------------------------------------------------------------------------
Losses	10	9	8	6	1	9	7	2	1	5

					Scenario Additional Draws (Ties) With
Team	Doosan	Hanwha	KIA	Kiwoom	KT	LG	Lotte	NC	Samsung	SSG	Total
Doosan	-	1	0	0	0	0	2	2	0	0	1
Hanwha	0	-	0	0	0	1	1	0	0	0	1
KIA	0	0	-	3	1	0	0	0	0	1	2
Kiwoom	0	0	1	-	1	0	0	1	0	1	2
KT	0	0	1	1	-	0	0	1	0	0	2
LG	0	0	0	0	0	-	2	0	0	0	0
Lotte	1	1	0	0	0	0	-	0	1	0	2
NC	0	0	0	0	0	0	0	-	0	1	0
Samsung	0	0	0	0	0	0	0	0	-	1	0
SSG	0	0	0	0	0	0	0	0	0	-	0
-----------------------------------------------------------------------------------
Total	1	1	2	2	2	0	2	0	0	0

The next two tables show, respectively, how many total games each team wins and ties against each of the other teams in the scenario:

					Scenario Total Wins Against
Team	Doosan	Hanwha	KIA	Kiwoom	KT	LG	Lotte	NC	Samsung	SSG	Wins
Doosan	-	8	6	9	4	7	7	5	6	5	57
Hanwha	7	-	9	14	9	5	9	9	8	8	78
KIA	9	7	-	7	8	5	9	6	7	7	65
Kiwoom	7	2	6	-	5	7	4	5	4	6	46
KT	11	7	7	10	-	8	6	7	11	7	74
LG	9	10	11	9	8	-	9	8	9	10	83
Lotte	7	6	7	12	8	5	-	7	7	6	65
NC	9	6	10	10	8	8	9	-	7	7	74
Samsung	10	8	9	12	5	7	8	9	-	9	77
SSG	11	8	8	9	9	6	10	8	6	-	75
-----------------------------------------------------------------------------------
Losses	80	62	73	92	64	58	71	64	65	65

					Scenario Total Draws (Ties) With
Team	Doosan	Hanwha	KIA	Kiwoom	KT	LG	Lotte	NC	Samsung	SSG	Total
Doosan	-	1	1	0	1	0	2	2	0	0	7
Hanwha	0	-	0	0	0	1	1	1	0	0	4
KIA	0	0	-	3	1	0	0	0	0	1	6
Kiwoom	0	0	1	-	1	0	0	1	0	1	6
KT	0	0	1	1	-	0	2	1	0	0	6
LG	0	0	0	0	0	-	2	0	0	0	3
Lotte	1	1	0	0	0	0	-	0	1	0	8
NC	0	0	0	0	0	0	0	-	0	1	6
Samsung	0	0	0	0	0	0	0	0	-	1	2
SSG	0	0	0	0	0	0	0	0	0	-	4
-----------------------------------------------------------------------------------
Total	7	4	6	6	6	3	8	6	2	4