Due to the cancellation of the 2020 race, the next lottery will be for the 2022 race and there will be a two-year qualifying window (Nov 2019 to Nov 2021). To qualify for the 2022 race lottery, you must run a qualifier off of either the 2021 or 2022 qualifying races lists below.

We limit the number of qualifying races to the largest trail 100 milers domestically, and the largest 100Ks that are also of significant difficulty. Worldwide, we’ve included the largest races but also have the goal of geographic diversity so runners from anywhere in the world have an opportunity to run a qualifying race.

While every effort is made to ensure that this information is current, complete and accurate, WS cannot be held responsible for any loss, injury, claim, liability, or damage related to your reliance thereon. WS reserves the right to determine all WS qualifiers. For more information on our criteria for choosing qualifying races click here.

We update the list of qualifying races once a year each September. We welcome corrections of factual errors at anytime. WS does not receive any payment or other benefit in exchange for placing an event on its list of Qualifying Races.

An event that is not on the lists cannot be used as a qualifier.

Please see our Entry Process page for more details.

2021 Qualifying Races List

Events below are official qualifiers for the 2021 Western States Endurance Run. The 2021 qualifying run must be run from Monday November 4, 2019 through Sunday November 8, 2020. All races are 2020 edition unless otherwise noted. If a time is listed you must run under that time. "Finisher" means under the advertised absolute cut-off for the race.

2022 Qualifying Races List

Events below are official qualifiers for the 2022 Western States Endurance Run. The 2022 qualifying run must be run from Monday November 9, 2020 through Sunday November 6, 2021. All races are 2021 edition unless otherwise noted. If a time is listed you must run under that time. "Finisher" means under the advertised absolute cut-off for the race.