2026 Allerton Races

What is the 2026 Allerton Races?

The 2026 Allerton Races are a series of trail runs held at Allerton Park in Monticello, Illinois. This is the 14th annual edition of the event, featuring a variety of race distances and a unique evening 5K run that takes place under the lighted statues of the park. The races are part of a larger running community in Monticello, with opportunities to participate in a triple crown series by completing this event and two others in the area.

What distances are available for this event?

• →Trail-Glo 5K — 8:30 PM on Saturday, April 11
• →Half Marathon — 9:00 AM on Sunday, April 12
• →10K — 9:00 AM on Sunday, April 12

What is the event schedule?

The event takes place over two days. On Saturday, April 11, the Trail-Glo 5K begins at 8:30 PM. On Sunday, April 12, the Half Marathon and 10K both start at 9:00 AM. The event is structured to allow participants to experience the scenic trails of Allerton Park in both daylight and evening conditions.

What is included in the registration?

Registration includes access to the race, a finisher medal for the 10K and Half Marathon, and the opportunity to participate in the virtual race option. Participants can also take part in the Monticello Triple Crown by completing this event and two other Monticello-area races.

What is the course like?

The course runs through the trails of Allerton Park, a year-round running and hiking destination. The park's trail network was enhanced after the replacement of the old bridge across the Sangamon River, creating a continuous and challenging race route. The course features natural terrain, scenic surroundings, and a memorable race environment. The Trail-Glo 5K also includes lighted statues and special sights and sounds, adding to the unique atmosphere of the event.

What is the charity associated with the event?

The 2026 Allerton Races support the Make-A-Wish Illinois Wish Warriors program. Proceeds from the event help fund wishes for children in Illinois, providing a meaningful and impactful experience for those in need.

What awards are given to participants?

Finishers of the 10K and Half Marathon races will receive seriously cool finisher medals. These medals are a special recognition of participants' accomplishments and are a highlight of the event.

Is there a virtual option available?

Yes, a virtual option is available for all three race distances — the Trail-Glo 5K, the 10K, and the Half Marathon. This allows participants who cannot attend in person to still take part and receive a finisher medal.

What is the Monticello Triple Crown?

The Monticello Triple Crown is a special series award for runners who complete the 2026 Allerton Races and two other Monticello-area races. This challenge offers participants an opportunity to engage with the local running community and earn a unique recognition for their efforts.

What is the weather forecast for the event?

On April 11, 2026, in Monticello, the weather is expected to be mild, with temperatures ranging from 45°F to 60°F. There is a chance of light rain or drizzle, so participants should prepare for variable conditions. On April 12, the weather is likely to be similar, with a mix of sun and clouds, and temperatures in the same range.

How can participants support the event's charity?

Participants can support the Make-A-Wish Illinois Wish Warriors program by registering for the event and contributing to the fundraising efforts. More information about the charity and how to support it is available at Wish ↗.

Are volunteers needed for the event?

Yes, volunteers are needed to help with the smooth operation of the 2026 Allerton Races. Those interested in volunteering can find more information and sign up at Allerton ↗.