Here is scenario in which Kiwoom makes the postseason with 21 additional wins (53 total).

Here are the final standings in the scenario:
            Team	W	L	D	PCT	GB
         Samsung	111	32	1	0.7762	0.0
              LG	96	48	0	0.6667	15.5
          Doosan	93	49	2	0.6549	17.5
              KT	91	52	1	0.6364	20.0
          Kiwoom	53	87	4	0.3786	56.5	See explanation of tie-breakers below.
           Lotte	53	87	4	0.3786	56.5	See explanation of tie-breakers below.
              NC	53	88	3	0.3759	57.0
             SSG	52	87	5	0.3741	57.0
             KIA	53	89	2	0.3732	57.5
          Hanwha	52	88	4	0.3714	57.5

Explanation of Tie-breakers:
Kiwoom and Lotte tie for fifth place and play a post-season game; the winner goes on to the wild-card game.

To construct the scenario, we start with the current standings:
            Team	W	L	D	GL	PCT	GB
         Samsung	53	32	1	58	0.624	0.0
              LG	52	36	0	56	0.591	2.5
              KT	50	35	1	58	0.588	3.0
             KIA	47	40	2	55	0.540	7.0
          Doosan	46	42	2	54	0.523	8.5
          Hanwha	40	43	1	60	0.482	12.0
              NC	40	44	1	59	0.476	12.5
           Lotte	38	47	2	57	0.447	15.0
             SSG	32	54	3	55	0.372	21.5
          Kiwoom	32	57	1	54	0.360	23.0

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	-	4	4	5	7	7	4	9	0	7	47
Hanwha	0	-	7	0	0	0	0	3	0	2	12
KIA	0	0	-	2	0	0	0	0	0	4	6
Kiwoom	0	2	5	-	0	0	7	3	0	4	21
KT	0	8	7	5	-	0	9	8	0	4	41
LG	0	9	5	6	5	-	4	8	0	7	44
Lotte	0	9	4	0	0	0	-	2	0	0	15
NC	0	3	8	1	0	0	1	-	0	0	13
Samsung	7	7	9	8	5	5	9	3	-	5	58
SSG	0	3	0	3	0	0	6	8	0	-	20
-----------------------------------------------------------------------------------
Losses	7	45	49	30	17	12	40	44	0	33

					Scenario Additional Draws (Ties) With
Team	Doosan	Hanwha	KIA	Kiwoom	KT	LG	Lotte	NC	Samsung	SSG	Total
Doosan	-	1	0	0	0	0	0	0	1	0	0
Hanwha	1	-	0	3	0	0	0	0	1	0	3
KIA	0	0	-	0	0	0	1	0	0	1	0
Kiwoom	0	3	0	-	1	0	0	0	0	0	3
KT	0	0	0	1	-	0	0	0	0	0	0
LG	0	0	0	0	0	-	0	0	0	0	0
Lotte	0	0	1	0	0	0	-	1	0	2	2
NC	0	0	0	0	0	0	1	-	0	2	2
Samsung	1	1	0	0	0	0	0	0	-	0	0
SSG	0	0	1	0	0	0	2	2	0	-	2
-----------------------------------------------------------------------------------
Total	0	3	0	3	0	0	2	2	0	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	-	9	11	12	10	9	12	14	4	12	93
Hanwha	6	-	11	4	3	4	5	6	2	11	52
KIA	5	5	-	11	3	4	7	2	5	11	53
Kiwoom	4	9	5	-	2	3	9	9	3	9	53
KT	6	13	13	13	-	8	12	14	3	9	91
LG	7	12	12	12	8	-	11	13	5	15	96
Lotte	4	11	8	7	4	5	-	6	3	5	53
NC	2	10	14	7	2	3	9	-	3	3	53
Samsung	11	13	12	14	13	11	13	12	-	12	111
SSG	4	5	3	7	7	1	9	12	4	-	52
-----------------------------------------------------------------------------------
Losses	49	88	89	87	52	48	87	88	32	87

					Scenario Total Draws (Ties) With
Team	Doosan	Hanwha	KIA	Kiwoom	KT	LG	Lotte	NC	Samsung	SSG	Total
Doosan	-	1	0	0	0	0	0	0	1	0	2
Hanwha	1	-	0	3	0	0	0	0	1	0	4
KIA	0	0	-	0	0	0	1	0	0	1	2
Kiwoom	0	3	0	-	1	0	0	0	0	0	4
KT	0	0	0	1	-	0	0	0	0	0	1
LG	0	0	0	0	0	-	0	0	0	0	0
Lotte	0	0	1	0	0	0	-	1	0	2	4
NC	0	0	0	0	0	0	1	-	0	2	3
Samsung	1	1	0	0	0	0	0	0	-	0	1
SSG	0	0	1	0	0	0	2	2	0	-	5
-----------------------------------------------------------------------------------
Total	2	4	2	4	1	0	4	3	1	5

# Kiwoom Heroes magic number
# Kiwoom's magic number
# Heroes magic number
# KBO Playoff Race