Table:
0
A
B
C
D
E
F
1
Res.
Record
Opponent
Method
Event
Round
2
Win
6-1
Kenji Osawa
Decision(majority)
Shooto - Back To Our Roots 3
1
3
Win
5-1
Naoya Uematsu
Decision(unanimous)
Fury FC 1 - Fury Fighting Championship 1
1
4
Win
4-1
Fredson Paixão
Decision
JF 6 - Jungle Fight 6
3
5
Loss
3-1
Akitoshi Hokazono
Decision(unanimous)
Shooto 2005 - 9/23 in Korakuen Hall
3
6
Win
3-0
Jin Akimoto
Decision(unanimous)
Shooto 2004 - 9/26 in Kourakuen Hall
3
7
Win
2-0
Shuichiro Katsumura
Decision (unanimous)
Shooto 2004 - 1/24 in Korakuen Hall
3
8
Win
1-0
Masato Shiozawa
Decision(majority)
Shooto 2003 - 5/4 in Korakuen Hall
3

Questions and formulas:
Question: What event did he fight masato shiozawa?
Formula: UNIQUE(CHOOSECOLS(FILTER(A1:F1,C1="masato shiozawa"),5))
Formula2: UNIQUE(CHOOSECOLS(FILTER(A2:F8,C2:C8="masato shiozawa"),5))
Level: medium