Here is scenario in which LG wins 85 additional games (99 total) but does not reach the postseason.

Here are the final standings in the scenario:
            Team	W	L	D	PCT	GB
              NC	101	43	0	0.7014	0.0
          Doosan	99	43	2	0.6972	1.0	See explanation of tie-breakers below.
             KIA	99	43	2	0.6972	1.0	See explanation of tie-breakers below.
         Samsung	99	43	2	0.6972	1.0	See explanation of tie-breakers below.
             SSG	99	43	2	0.6972	1.0	See explanation of tie-breakers below.
              LG	99	43	2	0.6972	1.0	See explanation of tie-breakers below.
          Kiwoom	51	92	1	0.3566	49.5
              KT	33	110	1	0.2308	67.5
          Hanwha	25	118	1	0.1748	75.5
           Lotte	8	135	1	0.0559	92.5

Explanation of Tie-breakers:
The following table shows how many games each of the teams tied for fifth place in the scenario have already won against each other:
Team	Doosan	KIA	LG	Samsung	SSG	Total
Doosan	-	1	2	0	0	3
KIA	2	-	3	1	1	7
LG	1	0	-	3	2	6
Samsung	3	2	2	-	0	7
SSG	3	2	0	3	-	8

The following table shows how many additional games each of the teams tied for fifth place win against each other in the scenario:
Team	Doosan	KIA	LG	Samsung	SSG	Total
Doosan	-	10	4	12	8	34
KIA	1	-	13	0	13	27
LG	9	0	-	0	10	19
Samsung	1	13	10	-	0	24
SSG	5	0	3	12	-	20

The following table shows how many games total each of the teams tied for fifth place win against each other in the scenario:
Team	Doosan	KIA	LG	Samsung	SSG	Total
Doosan	-	11	6	12	8	37
KIA	3	-	16	1	14	34
LG	10	0	-	3	12	25
Samsung	4	15	12	-	0	31
SSG	8	2	3	15	-	28


To construct the scenario, we start with the current standings:
            Team	W	L	D	GL	PCT	GB
             KIA	20	7	0	117	0.741	0.0
              NC	16	11	0	117	0.593	4.0
         Samsung	15	12	1	116	0.556	5.0
             SSG	15	12	1	116	0.556	5.0
              LG	14	13	2	115	0.519	6.0
          Kiwoom	13	13	0	118	0.500	6.5
          Doosan	13	16	0	115	0.448	8.0
          Hanwha	11	16	0	117	0.407	9.0
              KT	10	18	1	115	0.357	10.5
           Lotte	8	17	1	118	0.320	11.0

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	-	13	10	13	13	4	13	0	12	8	86
Hanwha	0	-	0	0	0	0	14	0	0	0	14
KIA	1	13	-	12	13	13	14	0	0	13	79
Kiwoom	0	12	0	-	13	0	13	0	0	0	38
KT	0	10	0	0	-	0	13	0	0	0	23
LG	9	14	0	13	13	-	13	13	0	10	85
Lotte	0	0	0	0	0	0	-	0	0	0	0
NC	11	14	13	14	13	0	13	-	7	0	85
Samsung	1	13	13	14	14	10	13	6	-	0	84
SSG	5	13	0	13	13	3	12	13	12	-	84
-----------------------------------------------------------------------------------
Losses	27	102	36	79	92	30	118	32	31	31

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

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	-	15	11	15	15	6	14	3	12	8	99
Hanwha	1	-	0	0	3	1	15	1	1	3	25
KIA	3	16	-	16	15	16	16	2	1	14	99
Kiwoom	1	15	0	-	14	2	16	0	2	1	51
KT	1	13	1	2	-	1	13	1	0	1	33
LG	10	15	0	14	15	-	15	15	3	12	99
Lotte	2	1	0	0	2	1	-	1	0	1	8
NC	13	15	14	16	15	1	15	-	9	3	101
Samsung	4	15	15	14	16	12	16	7	-	0	99
SSG	8	13	2	15	15	3	15	13	15	-	99
-----------------------------------------------------------------------------------
Losses	43	118	43	92	110	43	135	43	43	43

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