If all athletes in history took a time machine to compete in one championship track meet, these would be the results (limited to 3 athletes per country):
Men's 110m Hurdles Final:
1 Aries Merritt USA 12.89
2 Dayron Robles CUB 12.90
3 Liu Xiang CHN 12.91
4 David Oliver USA 12.92
5 Allen Johnson USA 12.93
6 Omar McLeod JAM 12.95
7 Colin Jackson GBR 12.96
8 Sergey Shubenkov RUS 12.97
Previous Event Medalists:
Mens:
100m: G - Usain Bolt JAM; S - Tyson Gay USA; B - Yohan Blake JAM
200m: G - Usain Bolt JAM; S - Yohan Blake JAM; B - Michael Johnson USA
400m: G - Michael Johnson USA; S - Wayde van Niekerk RSA; B - Jeremy Wariner USA
800m: G - David Rudisha KEN; S - Wilson Kipketer DEN; B - Joaquim Cruz BRA
1500m: G - Hicham El Guerrouj MAR; S - Bernard Lagat KEN; B - Asbel Kiprop KEN
5000m: G - Kenenisa Bekele ETH; S - Haile Gebrselassie ETH; B - Daniel Komen KEN
10000m: G - Kenenisa Bekele ETH; S - Haile Gebrselassie ETH; B - Sileshi Sihine ETH
Womens:
100m: G - Florence Griffith-Joyner USA; S - Marion Jones USA; B - Carmelita Jeter USA
200m: G - Florence Griffith-Joyner USA; S - Merlene Ottey JAM; B - Marita Koch GDR
400m: G - Marita Koch GDR; S - Jarmila Kratochvilova CZE; B - Olga Bryzgnina UKR
800m: G - Pamela Jelimo KEN; S - Caster Semenya RSA; B - Jarmila Kratochvilova CZE
1500m: G - Genzebe Dibaba ETH; S - Tatyana Kazankina RUS; B - Qu Yunxia CHN
5000m: G - Almaz Ayana ETH; S - Meseret Defar ETH; B - Genzebe Dibaba ETH
10000m: G - Almaz Ayana ETH; S - Tirunesh Dibaba ETH; B - Paula Radcliffe GBR