any new immigrants here?

According to JPost, the Mayor of Jerusalem, Moshe Lion, is inviting all new immigrants from within the past year to run in the Jerusalem Marathon for free. Another reason to make aliyah!

To take advantage of this you don't have to run the full marathon of 42.2km. You can join in a fun and lovely experience on the streets of the great city of Jerusalem with thousands of other people and run shorter distances such as 5km, 10km, or 21.1km, and even shorter distances, if that is more realistic for you, all for free. It costs you nothing to go out and have a great time at a great event!

According to JPost:

Moshe Lion, mayor of Jerusalem, announced on Monday that new immigrants to Israel will be able to run for free in the Jerusalem Winter Marathon. The move was made to encourage more immigrants to participate in the largest sporting event in Israel.
"Participants are running together in the Jerusalem Marathon, all of Israel, including the new immigrants. Those that immigrated within the last year are invited to run without paying fees. To the new immigrants- I am proud and excited to host you in the Jerusalem Marathon." said Lion.

Immigrants that immigrated to the country between January 1, 2019, and March 20, 2020 will be able to register and run for free.

Registration for the 2020 winter marathon will end on March 14, with six different kinds of options for the participants to chose from. Options include a full marathon (42.2 km), a half-marathon (21.1 km) a 10 km race, 5 km race, a family marathon (1.7 km), and a community marathon (800 m). The race itself is scheduled to take place on March 20.

I don't know how you get that discount. Maybe during registration on the Jerusalem Marathon website there is a place you can include your aliya information and then the price gets cut to 0. Or maybe ti is automatic. To register in Israel you need to put your teudat zehut number in. Perhaps it automatically identifies your immigration date and gives you the free promo.