Here is scenario in which Hanwha makes the postseason with 29 additional wins (44 total).

Here are the final standings in the scenario:
            Team	W	L	D	PCT	GB
              LG	128	15	1	0.8951	0.0
             SSG	114	28	2	0.8028	13.5
         Samsung	102	38	4	0.7286	24.5
              KT	95	45	4	0.6786	31.5
          Hanwha	44	96	4	0.3143	82.5	See explanation of tie-breakers below.
          Doosan	44	96	4	0.3143	82.5	See explanation of tie-breakers below.
             KIA	44	96	4	0.3143	82.5	See explanation of tie-breakers below.
          Kiwoom	44	96	4	0.3143	82.5	See explanation of tie-breakers below.
           Lotte	44	96	4	0.3143	82.5	See explanation of tie-breakers below.
              NC	44	97	3	0.3121	83.0

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	Hanwha	KIA	Kiwoom	Lotte	Total
Doosan	-	1	2	3	2	8
Hanwha	2	-	2	2	2	8
KIA	1	4	-	3	4	12
Kiwoom	2	0	0	-	2	4
Lotte	1	0	0	4	-	5

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	Hanwha	KIA	Kiwoom	Lotte	Total
Doosan	-	13	2	8	0	23
Hanwha	0	-	0	11	13	24
KIA	8	10	-	0	0	18
Kiwoom	3	0	13	-	10	26
Lotte	13	0	11	0	-	24

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	Hanwha	KIA	Kiwoom	Lotte	Total
Doosan	-	14	4	11	2	31
Hanwha	2	-	2	13	15	32
KIA	9	14	-	3	4	30
Kiwoom	5	0	13	-	12	30
Lotte	14	0	11	4	-	29


To construct the scenario, we start with the current standings:
            Team	W	L	D	GL	PCT	GB
              KT	23	11	1	109	0.676	0.0
              LG	22	13	0	109	0.629	1.5
         Samsung	20	14	1	109	0.588	3.0
             SSG	19	15	1	109	0.559	4.0
             KIA	17	18	1	108	0.486	6.5
          Doosan	16	19	1	108	0.457	7.5
              NC	15	19	1	109	0.441	8.0
          Hanwha	15	20	0	109	0.429	8.5
           Lotte	13	20	1	110	0.394	9.5
          Kiwoom	12	23	1	108	0.343	11.5

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	-	13	2	8	0	0	0	5	0	0	28
Hanwha	0	-	0	11	0	0	13	5	0	0	29
KIA	8	10	-	0	0	0	0	9	0	0	27
Kiwoom	3	0	13	-	0	0	10	6	0	0	32
KT	13	13	10	11	-	0	12	13	0	0	72
LG	10	11	13	13	11	-	13	11	11	13	106
Lotte	13	0	11	0	0	0	-	7	0	0	31
NC	9	8	1	7	0	0	4	-	0	0	29
Samsung	10	10	14	10	11	2	14	11	-	0	82
SSG	11	11	14	13	12	0	10	11	13	-	95
-----------------------------------------------------------------------------------
Losses	77	76	78	73	34	2	76	78	24	13

					Scenario Additional Draws (Ties) With
Team	Doosan	Hanwha	KIA	Kiwoom	KT	LG	Lotte	NC	Samsung	SSG	Total
Doosan	-	0	3	0	0	0	0	0	1	0	3
Hanwha	0	-	0	3	0	0	1	0	0	0	4
KIA	3	0	-	0	0	0	1	0	0	0	3
Kiwoom	0	3	0	-	1	0	0	0	0	0	3
KT	0	0	0	0	-	0	0	0	2	1	3
LG	0	0	0	0	0	-	0	0	1	0	1
Lotte	0	1	0	0	0	0	-	2	0	0	3
NC	0	0	0	0	0	0	2	-	0	1	2
Samsung	0	0	0	0	2	1	0	0	-	0	3
SSG	0	0	0	0	1	0	0	0	0	-	1
-----------------------------------------------------------------------------------
Total	3	4	3	3	3	1	3	2	3	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	-	14	4	11	1	2	2	6	2	2	44
Hanwha	2	-	2	13	0	2	15	6	1	3	44
KIA	9	14	-	3	1	1	4	11	1	0	44
Kiwoom	5	0	13	-	1	1	12	8	3	1	44
KT	15	16	15	14	-	4	14	15	1	1	95
LG	14	14	15	15	12	-	15	15	12	16	128
Lotte	14	0	11	4	2	1	-	7	2	3	44
NC	10	10	5	8	1	1	7	-	0	2	44
Samsung	13	15	15	13	13	3	14	16	-	0	102
SSG	14	13	16	15	14	0	13	13	16	-	114
-----------------------------------------------------------------------------------
Losses	96	96	96	96	45	15	96	97	38	28

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

# Hanwha Eagles magic number
# Hanwha's magic number
# Eagles magic number
# KBO Playoff Race