Here is scenario in which Kiwoom makes the postseason with 30 additional wins (48 total).

Here are the final standings in the scenario:
            Team	W	L	D	PCT	GB
              LG	112	28	4	0.8000	0.0
          Hanwha	107	37	0	0.7431	7.0
             SSG	105	37	2	0.7394	8.0
         Samsung	93	47	4	0.6643	19.0
           Lotte	48	92	4	0.3429	64.0	See explanation of tie-breakers below.
          Kiwoom	48	92	4	0.3429	64.0	See explanation of tie-breakers below.
             KIA	49	94	1	0.3427	64.5
              NC	48	93	3	0.3404	64.5
          Doosan	47	92	5	0.3381	64.5
              KT	47	92	5	0.3381	64.5

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
              LG	37	23	1	83	0.617	0.0
          Hanwha	36	25	0	83	0.590	1.5
           Lotte	32	27	3	82	0.542	4.5
             SSG	31	27	2	84	0.534	5.0
         Samsung	32	28	1	83	0.533	5.0
              KT	31	28	3	82	0.525	5.5
             KIA	29	29	1	85	0.500	7.0
              NC	25	29	3	87	0.463	9.0
          Doosan	24	34	3	83	0.414	12.0
          Kiwoom	18	45	1	80	0.286	20.5

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	3	0	0	0	10	10	0	0	23
Hanwha	10	-	11	10	8	5	9	7	8	3	71
KIA	4	0	-	2	3	0	8	3	0	0	20
Kiwoom	6	0	5	-	4	0	5	10	0	0	30
KT	7	0	4	2	-	0	0	3	0	0	16
LG	10	3	11	10	11	-	11	8	4	7	75
Lotte	0	0	2	2	9	0	-	3	0	0	16
NC	0	0	9	0	7	0	7	-	0	0	23
Samsung	10	2	9	11	11	0	8	10	-	0	61
SSG	11	7	11	10	11	0	7	10	7	-	74
-----------------------------------------------------------------------------------
Losses	58	12	65	47	64	5	65	64	19	10

					Scenario Additional Draws (Ties) With
Team	Doosan	Hanwha	KIA	Kiwoom	KT	LG	Lotte	NC	Samsung	SSG	Total
Doosan	-	0	0	2	1	0	0	2	0	0	2
Hanwha	0	-	0	0	0	0	0	0	0	0	0
KIA	0	0	-	1	0	0	0	0	0	0	0
Kiwoom	2	0	0	-	1	0	0	0	0	0	3
KT	0	0	0	1	-	0	3	0	0	0	2
LG	0	0	0	0	0	-	1	0	3	0	3
Lotte	0	0	0	0	1	0	-	0	0	0	1
NC	0	0	0	0	0	0	0	-	0	1	0
Samsung	0	0	0	0	0	3	0	0	-	1	3
SSG	0	0	0	0	0	0	0	0	0	-	0
-----------------------------------------------------------------------------------
Total	2	0	0	3	2	3	1	0	3	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	-	4	5	5	2	3	13	11	3	1	47
Hanwha	12	-	15	15	13	8	12	13	12	7	107
KIA	11	1	-	7	7	2	12	5	2	2	49
Kiwoom	9	1	8	-	6	1	7	12	0	4	48
KT	13	3	9	9	-	3	1	5	3	1	47
LG	13	8	14	15	13	-	14	13	9	13	112
Lotte	3	4	4	9	12	1	-	6	5	4	48
NC	3	3	11	4	11	3	10	-	2	1	48
Samsung	13	4	14	16	13	4	11	14	-	4	93
SSG	15	9	14	12	15	3	12	14	11	-	105
-----------------------------------------------------------------------------------
Losses	92	37	94	92	92	28	92	93	47	37

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

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