{
 "slug": "how-many-uk-parliamentary-by-elections-in-2026",
 "title": "How many UK parliamentary by-elections in 2026?",
 "url": "https://polymarkettrader.com/odds/how-many-uk-parliamentary-by-elections-in-2026/",
 "polymarket_url": "https://polymarket.com/event/how-many-uk-parliamentary-by-elections-in-2026-20260708164636512",
 "category": "politics",
 "closed": false,
 "updated": "2026-10-03T00:50:00+00:00",
 "end_date": "2027-01-01T04:59:00+00:00",
 "volume": 34490.21,
 "volume_24h": 1529.87,
 "liquidity": 63803.19,
 "outcomes": [
  {
   "name": "6",
   "probability": 0.445,
   "change_24h": -0.28,
   "volume": 14783.43,
   "closed": false
  },
  {
   "name": "7",
   "probability": 0.155,
   "change_24h": null,
   "volume": 4474.59,
   "closed": false
  },
  {
   "name": "8",
   "probability": 0.1225,
   "change_24h": 0.072,
   "volume": 3131.54,
   "closed": false
  },
  {
   "name": "10+",
   "probability": 0.035,
   "change_24h": 0.005,
   "volume": 1292.09,
   "closed": false
  },
  {
   "name": "9",
   "probability": 0.0165,
   "change_24h": 0.0025,
   "volume": 1140.36,
   "closed": false
  },
  {
   "name": "≤5",
   "probability": 0.01,
   "change_24h": 0.004,
   "volume": 9668.19,
   "closed": false
  }
 ],
 "history": {
  "6": [
   [
    1788436826,
    0.67
   ],
   [
    1788480020,
    0.685
   ],
   [
    1788523220,
    0.685
   ],
   [
    1788566420,
    0.685
   ],
   [
    1788609623,
    0.685
   ],
   [
    1788652826,
    0.735
   ],
   [
    1788696020,
    0.735
   ],
   [
    1788739234,
    0.735
   ],
   [
    1788782422,
    0.735
   ],
   [
    1788825617,
    0.735
   ],
   [
    1788868820,
    0.735
   ],
   [
    1788912025,
    0.735
   ],
   [
    1788955224,
    0.735
   ],
   [
    1788998420,
    0.735
   ],
   [
    1789041621,
    0.735
   ],
   [
    1789084822,
    0.735
   ],
   [
    1789128024,
    0.735
   ],
   [
    1789171223,
    0.63
   ],
   [
    1789214424,
    0.615
   ],
   [
    1789257621,
    0.615
   ],
   [
    1789300825,
    0.615
   ],
   [
    1789344018,
    0.615
   ],
   [
    1789387217,
    0.615
   ],
   [
    1789430417,
    0.615
   ],
   [
    1789473618,
    0.615
   ],
   [
    1789516818,
    0.615
   ],
   [
    1789560028,
    0.615
   ],
   [
    1789603220,
    0.615
   ],
   [
    1789646420,
    0.665
   ],
   [
    1789689623,
    0.695
   ],
   [
    1789732824,
    0.695
   ],
   [
    1789776025,
    0.715
   ],
   [
    1789819225,
    0.715
   ],
   [
    1789862424,
    0.715
   ],
   [
    1789905621,
    0.715
   ],
   [
    1789948820,
    0.715
   ],
   [
    1789992015,
    0.715
   ],
   [
    1790035221,
    0.715
   ],
   [
    1790078421,
    0.715
   ],
   [
    1790121623,
    0.715
   ],
   [
    1790164832,
    0.715
   ],
   [
    1790208033,
    0.72
   ],
   [
    1790251223,
    0.72
   ],
   [
    1790294426,
    0.72
   ],
   [
    1790337621,
    0.725
   ],
   [
    1790380821,
    0.725
   ],
   [
    1790424020,
    0.725
   ],
   [
    1790467220,
    0.725
   ],
   [
    1790510420,
    0.725
   ],
   [
    1790553634,
    0.725
   ],
   [
    1790596820,
    0.725
   ],
   [
    1790640021,
    0.725
   ],
   [
    1790683224,
    0.725
   ],
   [
    1790726423,
    0.725
   ],
   [
    1790769622,
    0.725
   ],
   [
    1790812825,
    0.725
   ],
   [
    1790856024,
    0.725
   ],
   [
    1790899223,
    0.725
   ],
   [
    1790942422,
    0.725
   ],
   [
    1790985626,
    0.45
   ],
   [
    1790989514,
    0.445
   ]
  ],
  "7": [
   [
    1788436827,
    0.215
   ],
   [
    1788480020,
    0.215
   ],
   [
    1788523220,
    0.215
   ],
   [
    1788566420,
    0.215
   ],
   [
    1788609623,
    0.215
   ],
   [
    1788652826,
    0.215
   ],
   [
    1788696021,
    0.215
   ],
   [
    1788739234,
    0.215
   ],
   [
    1788782422,
    0.215
   ],
   [
    1788825617,
    0.215
   ],
   [
    1788868820,
    0.215
   ],
   [
    1788912026,
    0.215
   ],
   [
    1788955224,
    0.215
   ],
   [
    1788998420,
    0.215
   ],
   [
    1789041621,
    0.215
   ],
   [
    1789084823,
    0.215
   ],
   [
    1789128024,
    0.215
   ],
   [
    1789171223,
    0.22
   ],
   [
    1789214425,
    0.22
   ],
   [
    1789257622,
    0.225
   ],
   [
    1789300825,
    0.21
   ],
   [
    1789344018,
    0.215
   ],
   [
    1789387217,
    0.215
   ],
   [
    1789430417,
    0.205
   ],
   [
    1789473618,
    0.22
   ],
   [
    1789516818,
    0.225
   ],
   [
    1789560028,
    0.225
   ],
   [
    1789603221,
    0.225
   ],
   [
    1789646420,
    0.225
   ],
   [
    1789689624,
    0.225
   ],
   [
    1789732825,
    0.225
   ],
   [
    1789776025,
    0.225
   ],
   [
    1789819225,
    0.225
   ],
   [
    1789862424,
    0.225
   ],
   [
    1789905621,
    0.225
   ],
   [
    1789948821,
    0.225
   ],
   [
    1789992016,
    0.225
   ],
   [
    1790035221,
    0.225
   ],
   [
    1790078421,
    0.225
   ],
   [
    1790121623,
    0.225
   ],
   [
    1790164832,
    0.225
   ],
   [
    1790208034,
    0.225
   ],
   [
    1790251223,
    0.225
   ],
   [
    1790294426,
    0.225
   ],
   [
    1790337621,
    0.225
   ],
   [
    1790380821,
    0.225
   ],
   [
    1790424020,
    0.225
   ],
   [
    1790467221,
    0.225
   ],
   [
    1790510420,
    0.225
   ],
   [
    1790553634,
    0.225
   ],
   [
    1790596820,
    0.225
   ],
   [
    1790640021,
    0.225
   ],
   [
    1790683224,
    0.225
   ],
   [
    1790726423,
    0.225
   ],
   [
    1790769623,
    0.225
   ],
   [
    1790812825,
    0.205
   ],
   [
    1790856024,
    0.205
   ],
   [
    1790899223,
    0.155
   ],
   [
    1790942422,
    0.155
   ],
   [
    1790985627,
    0.155
   ],
   [
    1790989514,
    0.155
   ]
  ],
  "8": [
   [
    1788436827,
    0.023
   ],
   [
    1788480020,
    0.033
   ],
   [
    1788523220,
    0.0325
   ],
   [
    1788566420,
    0.0315
   ],
   [
    1788609623,
    0.0425
   ],
   [
    1788652826,
    0.02
   ],
   [
    1788696021,
    0.0245
   ],
   [
    1788739234,
    0.0285
   ],
   [
    1788782422,
    0.0335
   ],
   [
    1788825617,
    0.025
   ],
   [
    1788868820,
    0.026
   ],
   [
    1788912026,
    0.0235
   ],
   [
    1788955224,
    0.0265
   ],
   [
    1788998420,
    0.0135
   ],
   [
    1789041621,
    0.02
   ],
   [
    1789084823,
    0.021
   ],
   [
    1789128024,
    0.026
   ],
   [
    1789171223,
    0.0505
   ],
   [
    1789214424,
    0.0505
   ],
   [
    1789257622,
    0.0505
   ],
   [
    1789300825,
    0.05
   ],
   [
    1789344018,
    0.0495
   ],
   [
    1789387217,
    0.0495
   ],
   [
    1789430417,
    0.0495
   ],
   [
    1789473618,
    0.0505
   ],
   [
    1789516818,
    0.05
   ],
   [
    1789560028,
    0.05
   ],
   [
    1789603220,
    0.05
   ],
   [
    1789646420,
    0.05
   ],
   [
    1789689624,
    0.0405
   ],
   [
    1789732824,
    0.05
   ],
   [
    1789776025,
    0.05
   ],
   [
    1789819225,
    0.05
   ],
   [
    1789862424,
    0.05
   ],
   [
    1789905621,
    0.05
   ],
   [
    1789948821,
    0.05
   ],
   [
    1789992015,
    0.05
   ],
   [
    1790035221,
    0.0495
   ],
   [
    1790078421,
    0.05
   ],
   [
    1790121623,
    0.05
   ],
   [
    1790164832,
    0.05
   ],
   [
    1790208034,
    0.0495
   ],
   [
    1790251223,
    0.05
   ],
   [
    1790294426,
    0.05
   ],
   [
    1790337621,
    0.049
   ],
   [
    1790380821,
    0.0485
   ],
   [
    1790424020,
    0.0475
   ],
   [
    1790467220,
    0.0475
   ],
   [
    1790510420,
    0.0475
   ],
   [
    1790553634,
    0.0495
   ],
   [
    1790596820,
    0.0495
   ],
   [
    1790640021,
    0.048
   ],
   [
    1790683224,
    0.048
   ],
   [
    1790726423,
    0.0475
   ],
   [
    1790769623,
    0.05
   ],
   [
    1790812825,
    0.05
   ],
   [
    1790856024,
    0.05
   ],
   [
    1790899223,
    0.0505
   ],
   [
    1790942422,
    0.0505
   ],
   [
    1790985626,
    0.122
   ],
   [
    1790989514,
    0.122
   ]
  ]
 },
 "license": "CC BY 4.0",
 "license_url": "https://creativecommons.org/licenses/by/4.0/",
 "attribution": {
  "required": true,
  "text": "Odds data: PolymarketTrader.com",
  "url": "https://polymarkettrader.com/odds/how-many-uk-parliamentary-by-elections-in-2026/",
  "html": "<a href=\"https://polymarkettrader.com/odds/how-many-uk-parliamentary-by-elections-in-2026/\">Odds data: PolymarketTrader.com</a>"
 },
 "source": "Polymarket public Gamma and CLOB APIs; not affiliated with Polymarket."
}