Updated At: 11:00 p.m. There were a number of tight North Side aldermanic contests, with runoffs to follow in April. Among the highlights are a virtual tie in the 46th Ward race to replace retiring Ald. Helen Schiller, and 83-year-old Ald. Bernie Stone will face challenger Debra Silverstein in a runoff, as Stone edged Silverstein by just a few hundred votes.

Alderman Ward 35

36 of 36 precincts - 100 percent

Rey Colon, (i) 4,451 - 51 percent

Miguel Sotomayor, 2,174 - 25 percent

Nancy Schiavone, 2,117 - 24 percent

Alderman Ward 36

55 of 55 precincts - 100 percent

John Rice, (i) 6,709 - 48 percent

Nicholas Sposato, 3,346 - 24 percent

Jodi Biancalana, 1,964 - 14 percent

Brian Murphy, 656 - 5 percent

Thomas Motzny, 650 - 5 percent

Bruce Randazzo, 628 - 5 percent

Alderman Ward 38

53 of 53 precincts - 100 percent

Timothy Cullerton, (i) 5,795 - 48 percent

Tom Caravette, 2,699 - 22 percent

Bart Goldberg, 945 - 8 percent

Carmen Hernandez, 723 - 6 percent

Mahmoud Bambouyani, 704 - 6 percent

Sheryl Morabito, 672 - 6 percent

John Videckis, 402 - 3 percent

Ed Quartullo, 237 - 2 percent

Alderman Ward 39

47 of 47 precincts - 100 percent

Margaret Laurino, (i) 7,735 - 76 percent

Mary Hunter, 2,392 - 24 percent

Alderman Ward 41

56 of 57 precincts - 98 percent

Mary O'Connor, 5,885 - 30 percent

Maurita Gavin, 4,890 - 25 percent

Richard Gonzalez, 1,887 - 10 percent

Thomas Murphey, 1,718 - 9 percent

Jim Mullen, 1,650 - 8 percent

Daniel Lapinski, 1,593 - 8 percent

Brock Merck, 728 - 4 percent

John Quinn, 528 - 3 percent

Barbara Ateca, 353 - 2 percent

James Schamne, 152 - 1 percent

George Banna, 134 - 1 percent

Alderman Ward 43

57 of 59 precincts - 97 percent

Michele Smith, 5,040 - 37 percent

Tim Egan, 3,862 - 29 percent

Charles Eastwood, 1,394 - 10 percent

Rafael Vargas, 1,219 - 9 percent

Mitchell Newman, 637 - 5 percent

Bita Buenrostro, 408 - 3 percent

Jim Hinkamp, 378 - 3 percent

Mike Jankovich, 356 - 3 percent

Carmen Olmetti, 149 - 1 percent

Alderman Ward 45

53 of 53 precincts - 100 percent

John Garrido, 5,121 - 32 percent

John Arena, 3,567 - 23 percent

Marina Faz-Huppert, 3,065 - 19 percent

Michael Ward, 1,638 - 10 percent

Anna Klocek, 1,189 - 8 percent

Don Blair, 965 - 6 percent

Bruno Bellissimo, 216 - 1 percent

Alderman Ward 46

47 of 47 precincts - 100 percent

Molly Phelan, 2,712 - 20 percent

James Cappleman, 2,706 - 20 percent

Emily Stewart, 2,018 - 15 percent

Don Nowotny, 1,591 - 12 percent

Marc Kaplan, 1,331 - 10 percent

Michael Carroll, 1,241 - 9 percent

Scott Baskin, 821 - 6 percent

Befekadu Retta, 602 - 4 percent

Diane Shapiro, 458 - 3 percent

Andy Lam, 186 - 1 percent

Caitlin McIntyre, 141 - 1 percent

Alderman Ward 47

51 of 52 precincts - 98 percent

Ameya Pawar, 8,351 - 51 percent

Tom O'Donnell, 7,157 - 44 percent

Matt Reichel, 600 - 4 percent

Tom Jacks, 342 - 2 percent

Alderman Ward 48

53 of 54 precincts - 98 percent

Harry Osterman, 10,161 - 81 percent

Philip Bernstein, 716 - 6 percent

Jose Arteaga, 639 - 5 percent

Patrick McDonough, 629 - 5 percent

Steven Chereska, 354 - 3 percent

Alderman Ward 49

42 of 42 precincts - 100 percent

Joe Moore, (i) 6,857 - 72 percent

Brian White, 2,665 - 28 percent

Alderman Ward 50

44 of 45 precincts - 98 percent

Bernard Stone, (i) 4,143 - 37 percent

Debra Silverstein, 3,763 - 34 percent

Greg Brewer, 2,095 - 19 percent

Ahmed Khan, 659 - 6 percent

Michael Moses, 475 - 4 percent

Here is a look at some of the aldermanic races WBEZ reporters will be following closely.

50th Ward

Updated At: 8:40 p.m.   Vote tallies show tight races in the 46th and 50th wards on Chicago's North Side, where runoffs appear likely. Candidates in the 46th Ward are vying to replace retiring Ald. Helen Schiller, who represents much of Uptown. Chicago's oldest alderman, 83-year-old Bernie Stone, is fighting to hold onto his seat in the 50th Ward.

On the city’s far North Side, West Ridge residents say this race is about the same issues brought up in past elections: development and beautification of the once-thriving retail corridors on Devon and Western Avenues, as well as building cohesion among the ward’s ethnically diverse populations. When incumbent Ald. Bernard Stone declared that he would run again for an eleventh term, the 83-year-old said now was “­not the time for change.”

In his last election Stone found himself forced into a runoff. Later, he lost the Democratic Committeeman seat to State Senator Ira Silverstein. In this race, Silverstein’s wife, Debra, is running against Stone, as is one-time Stone ally, Michael Moses. Both of those challengers hail from the area’s Orthodox Jewish community. Also running are Greg Brewer, an architect who unsuccessfully bid for Stone’s seat in the last election, and Ahmed Khan, a young community organizer of Indian-American descent.

47th Ward

Updated At: 9:06   Ameya Pawar has a slight lead over Tom O'Donnell and two other challengers in the 47th Ward race to replace Ald. Gene Schulter.

In this ward, 35-year incumbent Gene Schulter dropped his reelection bid in January to make a play for the Cook County Board of Review. That unsuccessful run set up the first wide-open race since the 1970s in this ward that includes Lincoln Square, North Center and Ravenswood. Schulter threw his support behind Tom O'Donnell, a longtime ally who is president of the Ravenswood Community Council. Schulter gave O'Donnell at least $15,000, helping set up a huge money advantage for O'Donnell. He raised more than $100,000 since jumping into the race just over a month ago.

His biggest competitor is 30-year-old Ameya Pawar, a program assistant at Northwestern University who bills himself as young, savvy and reform-minded. He collected endorsements from both major daily papers, and managed to raise about $30,000 without the backing of an established political organization. Activist Matt Reichel and Northwestern University administrator Tim Jacks are also running for the seat.

46th Ward

This ward is largely contained within the Uptown neighborhood, which entered this election at a crossroads. For years it’s been under pressure to preserve a tradition of taking care of the economically and socially underserved. At the same time, young homeowners want to see new businesses that can serve them, and raise their property values.

Outgoing Ald. Helen Shiller had championed to keep affordable housing in the 46th Ward, and she won her final battle most recently with the creation of the Wilson Yards mixed-use development. The development brought in a Target and an Aldi grocery, but it also included low-income and senior housing. Shiller’s decision not to run left the door open to eleven candidates, who have had to delicately address economic development while retaining affordable housing.

41st Ward

This ward includes far-Northwest Side neighborhoods like Edison Park, Norwood Park and Edgebrook -- largely white, middle-class areas home to many cops, teachers and city workers. There, the City Council's only Republican, Brian Doherty, gave up a reelection bid for an unsuccessful run for the state legislature. He threw his support behind his longtime administrative aide, Maurita Gavin (who, it so happens, took Alderman Doherty to prom back in the 1970s). She is running on a platform of continuity, promising even to keep largely the same staff.

She faced a huge field of 10 challengers, including three former or current police officers and a fireman. In contention are Mary O'Connor, a small business-owner and Democratic committeeman, Richard Gonzalez, a police sergeant who has loaned large sums to his campaign, and Thomas Patrick Murphey, an urban planner who nabbed the Chicago Tribune's endorsement. Bread-and-butter issues dominated this campaign, like basic city services and preventing local police from being deployed to other wards. Most candidates promised to fight to uphold the area's "suburb in the city" character, dominated by single-family homes and good schools. Also running for this seat are former police officer Jim Mullen, firefighter Daniel Lapinski, small-business owner James Schamne, police officer Brock Merck, George Banna and Barbara Ateca.

Odette Yousef and Gabriel Spitzer contributed to this story.