Working With Chicago Area Racing Archives

The main problem people hit when they start looking into Chicago Horse Racing History is that there isn't one central, organized database. It's scattered across the Chicago Public Library's special collections, the Illinois Racing Board archives, the Harness Racing Museum and Hall of Fame (which has some Chicago-referenced material but is in Goshen, New York), and various private collections that require appointments. I spent about six months tracking down results for a client who needed complete race charts from Arlington Park between 1927 and 1944, and roughly half of that time was just figuring out what was digitized versus what still lived on microfilm. Start with the Illinois Racing Board. They maintain official race charts, stakes records, and ownership/trainer registrations going back to the 1970s in searchable digital form. Pre-1970 records are mostly on microfilm at their Springfield office, though some have been scanned by volunteers. If you're doing serious research, request a records retrieval instead of trying to read microfilm yourself — it takes them about two weeks and costs around $75 per facility, but the scanned copies are legible. Reading microfilm directly usually means you'll miss small details like exact fractions or claimed prices because the image quality degrades after the third generation of copying. For thoroughbred racing specifically, the Chicago area had three major tracks operating at different times: Hawthorne Race Course (1924–2008), Arlington Park (1927–2021), and Roosevelt Raceway's Chicago operation which was short-lived in the late 1980s. Standardbred/harness racing ran at the old Milwaukee County Fairgrounds track which served the Chicago market, and at Hawthorne's standardbred program before that split off. Each track kept different levels of record documentation. Hawthorne was notably rigorous about their conditional jockey claims and trainer entries. Arlington's records from the 1960s onward are surprisingly complete because they digitized their internal betting reports in 1998 for an insurance audit and never cleaned them up afterward.

The Chicago Public Library's local history division has newspaper clippings from the Chicago Daily News and Chicago Tribune race sections. These are invaluable for fill-in-the-blank gaps where official charts are missing payouts or weather conditions. The Tribune's horse racing section was run by John C. Knight for decades and his handwritten notes sometimes contradict the official charts. I found at least three cases where a listed winner in the official record was actually a dead heat that the chart caller misread, and the only correction appeared in Knight's personal margin notes which were archived separately. Always cross-reference with at least two sources before treating any single record as final. For pre-1924 Chicago-area racing, you're looking at tracks like the old Chicago Race Track near 63rd Street which operated intermittently from the 1880s through the early 1900s. Records from this period are sparse. The Lake County Fairgrounds near Waukegan also hosted occasional meets. Most of what exists comes from newspaper accounts rather than official charting. The Daily Racing Form didn't begin consistent Chicago coverage until the 1920s, so anything before that is fragmentary at best.

Practical Research Workflow

Here's the sequence I use now instead of the one I wasted two years learning the hard way. Pull the ILRB digital charts first for the date range you need. They're free and searchable by track, date, and race number. This usually gives you the frame — winners, payouts, fractions, track condition. Then fill gaps with CP Library newspaper clips. Finally, check BloodHorse.com and Equibase for stakes races and notable horses, which tend to have better coverage than the state archives for high-profile events. The whole process for a typical five-year span at one track runs about 12 to 18 hours depending on how incomplete the source material is. A specific edge case I ran into last year involved a claimer at Arlington in October 1971 where the official chart listed the winner as finishing by three lengths, but the Tribune's photo finish column described it as a nose. The ILRB microfilm was too degraded to read the judge's original call. I tracked down the track photographer's negative collection at the Arlington Park site — they'd moved to a storage facility in Bolingbrook — and confirmed it was a nose. The official chart had a transcription error from the stewards' book. This kind of discrepancy shows up more often than you'd expect in records from the 1960s and early 70s when chart callers were often working double shifts during meet rush weeks. I recommend flagging any result used in published work when you've caught a discrepancy, because most researchers won't dig this deep and the errors propagate through secondary sources.

Get the Full Details

The Chicago Outfit and Horse Racing History - Mob Vlog - Rednesday - YouTube
The Chicago Outfit and Horse Racing History - Mob Vlog - Rednesday - YouTube

Where This Approach Falls Short

The biggest limitation is that comprehensive payout data before 1978 is unreliable for pari-mutuel analysis. Illinois changed its wagering rules significantly in the late 1970s and many older records don't break down exact wager types or handle figures the way modern systems do. If you need precise betting handle data for academic or regulatory purposes, plan on spending an additional four to six weeks at the ILRB archives in Springfield reviewing original daily summaries rather than relying on the digitized versions. The digitized records skip fields that the original paper forms included. Another hard bottleneck: thoroughbred breeding and ownership records for Chicago-area horses are split between the Jockey Club, the ILRB, and individual stud farm archives. There's no unified registry. If you're tracking a specific horse's lineage through the Chicago circuit, expect to visit multiple locations or pay for research assistance from each. The Jockey Club's online database covers raced horses well but stud records from small Illinois farms in the 1950s and 60s are inconsistently entered. For harness racing specifically, the situation is worse. The Standardbred Canada and USTA archives have some Midwest track data but Chicago-area standardbred records from the 1940s through the 1970s are not well represented in any single repository. The Harness Racing Museum has some materials but their online catalog is incomplete. My recommendation for anyone focused on Chicago standardbred history is to contact the Illinois Trotting Racing Association directly. They maintained membership and race records for smaller satellite tracks that the national databases frequently omit.

Digitized Resources That Actually Work

Equibase has Chicago track data but only goes back to 1990 reliably. Before that, the data quality drops off sharply and you'll find missing fractional times and incomplete field lists. BloodHorse is better for stakes race coverage at Arlington and Hawthorne but doesn't cover everyday claimers and allowance races. The Daily Racing Form archives are the most complete for post-1960 thoroughbred racing but require a paid subscription that runs roughly $200 per year for full access. For standardbred coverage, the Harness Horse Annual is useful but again requires a subscription and has its own gaps in the 1970s data. If you're on a tight budget, the Chicago Public Library offers free on-site access to the DRF archives and newspaper databases. Their microfilm room is open Tuesday through Saturday and the librarians there are genuinely helpful if you know what you're asking for. They won't do the research for you but they can pull the right reel or scan the right page in about five minutes. I've used this route repeatedly and it saves money without sacrificing accuracy. One thing nobody warns you about: track closure records. When Arlington Park closed in 2021 and Hawthorne's thoroughbred program ended in 2008, some of the newer digitized records became harder to access because the operating companies that maintained them went through bankruptcy proceedings. The ILRB stepped in to preserve the records but there are documented gaps in ownership transfer paperwork from the final years of operation. If your research extends into the 2010s, verify that the records you're using came from the ILRB rather than from third-party aggregators who may have missed files during the transition.