Table:
0
A
B
C
D
E
1
Athlete
Country
Wins
Years
Distance
2
Laila Ceika
Latvia
4
1994, 1998, 1999, 2001
Marathon
3
Ziedonis Zaļkalns
Latvia
4
1995, 1998, 2000, 2001
Marathon
4
Arūnas Balčunas
Lithuania
3
1999, 2000, 2003
Marathon
5
Aleksandrs Prokopčuks
Latvia
2
1993, 1996
Marathon
6
Aušra Kavalauskiene
Lithuania
2
2000, 2003
Marathon
7
Valērijs Žolnerovičs
Latvia
2
2010, 2012
Half Marathon
8
Jeļena Prokopčuka
Latvia
2
2012, 2013
Half Marathon

Questions and formulas:
Question: I want the years for marathon distance and wins of 3
Formula: LET(query1,LET(query1,FILTER(A1:E1,E1="marathon"),SUMMARIZE(CHOOSECOLS(query1,4),SUMX(CHOOSECOLS(query1,3)))),FILTER(query1,CHOOSECOLS(query1,2)=3))
Formula2: LET(query1,LET(query1,FILTER(A2:E8,E2:E8="marathon"),SUMMARIZE(CHOOSECOLS(query1,4),SUMX(CHOOSECOLS(query1,3)))),FILTER(query1,CHOOSECOLS(query1,2)=3))
Level: hard
Question: Name the country for athlete of ziedonis zaļkalns
Formula: UNIQUE(CHOOSECOLS(FILTER(A1:E1,A1="ziedonis zaļkalns"),2))
Formula2: UNIQUE(CHOOSECOLS(FILTER(A2:E8,A2:A8="ziedonis zaļkalns"),2))
Level: medium