Table:
0
A
B
C
D
E
F
1
Outcome
Date
Category
Surface
Opponent
Score
2
Winner
11 May 2009
Challenger
Clay
Carsten Ball
6–7 (4–7) , 6–4, 6–3
3
Runner-up
24 July 2011
Challenger
Hard
Wayne Odesnik
5–7, 4–6
4
Winner
7 August 2011
Challenger
Hard
Robby Ginepri
7–5, 6–4
5
Runner-up
10 February 2013
Challenger
Hard
Matthew Barton
2–6, 3–6
6
Runner-up
5 May 2013
Challenger
Clay
Márton Fucsovics
5–7, 6–3, 3–6
7
Winner
28 July 2013
Challenger
Hard
James Duckworth
4–6, 6–3, 6–4

Questions and formulas:
Question: What category is Matthew Barton?
Formula: UNIQUE(CHOOSECOLS(FILTER(A1:F1,E1="matthew barton"),3))
Formula2: UNIQUE(CHOOSECOLS(FILTER(A2:F7,E2:E7="matthew barton"),3))
Level: medium