Tournament difficulty
British Parliamentary tournaments ranked by the empirical strength of the field that showed up. View our methodology here.
Updated 11 hours ago
Mar 2020 to May 2023
TournamentStrength
#1
LSE Open 2023
2023-02 · 70 teams
1.13
#2
Doxbridge 4: Modern Warfare
2022-11 · 189 teams
0.67
#3
KCL Open 2021
2021-06 · 91 teams
0.59
#4
Madrid WUDC 2023
2022-12 · 262 teams
0.51
#5
Imperial IV 2022
2022-07 · 118 teams
0.47
#6
Princeton IV 2021
2021-06 · 143 teams
0.37
#7
Doxbridge 3: Return of the King
2021-11 · 162 teams
0.18
#8
Astana EUDC 2020
2020-06 · 168 teams
0.16
#9
Johns Hopkins Open 2022
2022-07 · 95 teams
0.16
#10
North American Spar Open 2021
2021-03 · 50 teams
0.10
#11
Oxford IV 2022
2022-11 · 117 teams
0.07
#12
Doxbridge Pre-WUDC 2022: So Long, and Thanks for All The Fish
2022-06 · 180 teams
-0.00
#13
Yale IV Fall 2021
2021-12 · 134 teams
-0.05
#14
LSE Open 2022
2022-04 · 90 teams
-0.15
#15
Pre-WUDC Vienna Online Open
2022-12 · 122 teams
-0.16
#16
Belgrade WUDC 2022
2022-07 · 379 teams
-0.19
#17
Hart House IV 2020
2020-10 · 116 teams
-0.24
#18
Yale IV 2022
2022-10 · 121 teams
-0.27
#19
McGill NAUDC 2021
2022-02 · 80 teams
-0.30
#20
NAUDC 2023
2023-04 · 83 teams
-0.31
#21
Western IV 2022
2022-06 · 104 teams
-0.43
#22
ABP 2020
2020-06 · 162 teams
-0.44
#23
Bali Asian British Parliamentary 2022
2023-01 · 86 teams
-0.59
#24
Colgate Open 2023
2023-03 · 28 teams
-0.64
#25
RV Debating 2021
2021-06 · 87 teams
-0.70
#26
HWS United States University Debate Championships 2020
2020-10 · 147 teams
-0.82
#27
Hart House IV 2022
2022-10 · 77 teams
-0.86
#28
USC IV 2021
2021-06 · 69 teams
-0.87
#29
North American Novices 2021
2021-06 · 58 teams
-1.10
#30
Shanghai (SIDO) Hanoi ABP 2021
2021-10 · 193 teams
-1.16
#31
Random Pro-Am IV: The Kneppers Invitational
2022-04 · 67 teams
-1.39
#32
IDS Northeast Asian Debating Championships 2022
2022-11 · 127 teams
-1.41
#33
Colgate Open 2021
2021-06 · 88 teams
-1.43
Round robins
Round robins are curated invitationals — typically 16 of the world's best teams playing every other team across the prelims with no power-pairing. The bubble-path metric used in the main ranking doesn't apply (opponent strength is uniform across the field), so they're shown here separately. By raw field strength these are the most competitive tabs on the calendar to break at.
#1
HWS Round Robin 2021
2021-04 · 16 teams
2.98
#2
HWS Round Robin 2022
2022-04 · 16 teams
2.28
#3
HWS Round Robin 2023
2023-04 · 16 teams
2.07
#4
HWS Round Robin 2020
2020-04 · 16 teams
1.76