BETHEL, Alaska (AP) — Pete Kaiser has won his fourth consecutive Kuskokwim 300 title.

KYUK-AM reports that Kaiser on Sunday became the first musher to win the race four times in a row.

The race's route had been altered by organizers due to warm weather that caused the Kuskokwim river to not freeze.

Teams faced rough ice over windy tundra trails as they ran two laps to a halfway point and back, instead of the traditional route which calls for racing 300 miles (480 kilometers) across the Kuskokwim River from Bethel to Aniak and back.

The new trail forced mushers to throw traditional rest strategies out the window.

Kaiser wins $25,000 from the $150,000 purse.

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Information from: KYUK-AM, http://www.kyuk.org