Here is scenario in which LG makes the postseason with 0 additional wins (80 total).

Here are the final standings in the scenario:
            Team	W	L	D	PCT	GB
          Hanwha	83	56	5	0.5971	0.0
              LG	80	59	5	0.5755	3.0
              KT	74	64	6	0.5362	8.5
             KIA	70	68	6	0.5072	12.5
           Lotte	68	68	8	0.5000	13.5
              NC	68	68	8	0.5000	13.5
             SSG	67	71	6	0.4855	15.5
         Samsung	67	73	4	0.4786	16.5
          Doosan	64	72	8	0.4706	17.5
          Kiwoom	49	91	4	0.3500	34.5

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	3	0	0	0	0	1	4	8
Hanwha	1	-	2	1	0	3	0	0	0	0	7
KIA	0	0	-	1	0	0	1	4	1	2	9
Kiwoom	0	0	0	-	1	0	1	1	2	1	6
KT	0	2	1	0	-	4	0	1	0	1	9
LG	0	0	0	0	0	-	0	0	0	0	0
Lotte	0	1	0	0	0	1	-	0	3	0	5
NC	1	0	0	0	0	1	1	-	1	3	7
Samsung	0	0	0	0	0	1	0	0	-	0	1
SSG	0	0	0	0	0	0	1	0	1	-	2
-----------------------------------------------------------------------------------
Losses	2	3	3	5	1	10	4	6	9	11

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

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	12	4	6	7	5	7	9	64
Hanwha	7	-	11	14	9	8	9	9	8	8	83
KIA	9	4	-	8	8	5	9	10	8	9	70
Kiwoom	4	2	6	-	6	7	5	6	6	7	49
KT	11	7	8	10	-	8	6	7	10	7	74
LG	9	7	11	9	8	-	9	8	9	10	80
Lotte	7	7	7	11	8	5	-	7	10	6	68
NC	9	6	6	9	8	7	8	-	8	7	68
Samsung	9	8	7	10	5	7	5	8	-	8	67
SSG	7	7	6	8	8	6	10	8	7	-	67
-----------------------------------------------------------------------------------
Losses	72	56	68	91	64	59	68	68	73	71

					Scenario Total Draws (Ties) With
Team	Doosan	Hanwha	KIA	Kiwoom	KT	LG	Lotte	NC	Samsung	SSG	Total
Doosan	-	1	1	0	1	1	2	2	0	0	8
Hanwha	0	-	1	0	0	1	0	1	0	1	5
KIA	0	1	-	2	0	0	0	0	1	1	6
Kiwoom	0	0	0	-	0	0	0	1	0	1	4
KT	0	0	0	0	-	0	2	1	1	1	6
LG	1	0	0	0	0	-	2	1	0	0	5
Lotte	1	0	0	0	0	0	-	1	1	0	8
NC	0	0	0	0	0	1	1	-	0	1	8
Samsung	0	0	1	0	1	0	0	0	-	1	4
SSG	0	1	0	0	1	0	0	0	0	-	6
-----------------------------------------------------------------------------------
Total	8	5	6	4	6	5	8	8	4	6

# LG Twins magic number
# LG's magic number
# Twins magic number
# KBO Playoff Race