Fifty-seven players were still out on the course when play in the NGA/Hooters Tour's Buffalo Run Casino Classic was halted by darkness on Thursday.
Rain earlier Thursday totalling 9/10ths of an inch forced the start of the second round to be pushed back four hours to 11:45 a.m.
As a result, tee times for the afternoon group of players was bumped back three hours to 3:30 p.m.
NGA/Hooters Tour officials sounded horns at 7:11 p.m. to end the long day of competition.
Players were to finish up the hole they were on, then return to the main area.
Play was to resume at 8:30 a.m. Friday, with Round 3 scheduled to get started at about noon.
Following the completion of Round 2, the field will be cut to the low 65 players and ties.
Peoria Ridge Golf Course superintendent Milton Hale said some bunkers were pumped out twice.
"When we got it done, it started raining again ... then we had to do it again," Hale said. We had double-cut the greens and changed the cups. We were ready when they were ready (to resume play)."
This was the first time in the tournament's nine-year history that a round had been suspended by darkness.
In 2007 and 2008, the third round of the tournament was postponed by heavy rains, forcing players to play 36 holes on the final day.