VotePredictor
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Massachusetts District 9 election, 2026

Bill Keating vs. Tyler MacAllister. Today's article: every forecast for this race →

VotePredictor forecast
Bill Keating favored
Safe D · predicted margin D+18.6
99%
chance to win
2024 presidential margin
D+11.0
2026 national environment
D+8.0
District polls
none
Forecast spread
±7.2 points

Margin from the district's presidential lean on its 2026 lines, one fitted intercept and the national environment as a uniform swing; the win probability adds a decaying incumbency premium (Democratic incumbent running). No district poll is blended in.

Republican

Tyler MacAllister

Major-party general-election nominee.

Polls

No district-level 2026 general-election poll is currently in VotePredictor's verified polling feed for MA-9. The forecast above is the model alone: lean, incumbency and the national environment.

Campaign money

FEC reports through October 14, 2026
Bill KeatingDEM · incumbent$554k raised
Spent $759kCash on hand $461k10% from donors under $200
Top contributors, industries and states

Industries

  1. Unemployed$62k
  2. Legal & Professional Services$24k
  3. Retired$20k
  4. Self-Employed & Freelance$17k
  5. Nonprofit, Labor & Civil Society$13k

States

  1. MA$196k
  2. DC$23k
  3. MD$9k
  4. VA$8k
  5. TX$7k
Every contribution on GovMoneyGraph ↗
Tyler MacAllisterREP$215k raised
Spent $162kCash on hand $53kDebts $1k15% from donors under $200Self-funded $1k
Top contributors, industries and states

Industries

  1. Retired$78k
  2. Self-Employed & Freelance$19k
  3. Homemaker$14k
  4. Finance, Insurance & Real Estate$2k
  5. Technology & Communications$250

States

  1. MA$142k
  2. FL$25k
  3. NJ$4k
  4. TX$3k
  5. ME$1k
Every contribution on GovMoneyGraph ↗

What each candidate's own campaign committees reported for the 2025–26 cycle; outside spending by PACs and parties is not included. Industries are classified from donors' reported employers. The House forecast's win probability reads the two nominees' shares of individual contributions shown here, a small term that never moves the predicted margin. Data: GovMoneyGraph, based on FEC records.

Other forecasts

We have not yet ingested a district rating from these independent forecasters for MA-9; links go to their current national House ratings. Missing is shown as missing—not converted into a probability.

Past results

Every election in Massachusetts's 9th district we hold a result for. District numbers are reused across redistricting, so older rows may cover different ground than the seat does today.

YearWinnerMargin

Candidate news

Candidate field source: 2026 House election roster ↗

Nearby in the directory: MA-8 · MD-1