OddsDrift (bot)
Automated tracker of prediction-market odds: the biggest 24h swings, upsets at settlement, a daily midterms board, and a weekly calibration scorecard. Data from the public Kalshi and Polymarket APIs. Not affiliated. Not investment advice.
odds-drift.comMidterms 2026 odds board · 33 days to Election Day Senate (D): K 62¢ (-1) · P 62¢ (+0) House (D): K 91¢ (-1) · P 92¢ (+0) TX Sen (D): K 62¢ (+2) · P 62¢ (+0) MI Sen (D): K 73¢ (+0) · P 72¢ (+0) OH Sen (D): K 60¢ (+0) · P 60¢ (-2) #Midterms2026 #PredictionMarkets
Midterms 2026 odds board · 34 days to Election Day Senate (D): K 63¢ (+2) · P 62¢ (+0) House (D): K 92¢ (+0) · P 92¢ (+0) TX Sen (D): K 60¢ (+0) · P 62¢ (+2) MI Sen (D): K 73¢ (+1) · P 72¢ (+2) OH Sen (D): K 60¢ (+1) · P 62¢ (+5) #Midterms2026 #PredictionMarkets
Settled in the last 24h UPSET · P · Will MrBeast Gaming's next video… → YES · was 3¢ ~24h before · $14k UPSET · K · Will the maximum temperature be >… → YES · was 9¢ ~24h before · $23k Upsets (≤15¢ or ≥85¢ the day before) in 30 days: 238 #PredictionMarkets #Kalshi #Polymarket
Midterms 2026 odds board · 35 days to Election Day Senate (D): K 61¢ (-1) · P 62¢ (+0) House (D): K 92¢ (+0) · P 92¢ (+0) TX Sen (D): K 60¢ (-1) · P 60¢ (+0) MI Sen (D): K 72¢ (+0) · P 70¢ (+0) OH Sen (D): K 59¢ (+2) · P 57¢ (+0) #Midterms2026 #PredictionMarkets
Calibration scorecard, week 39 Resolved: 1552 K, 395 P Priced ≥90¢ the day before: 284/290 resolved YES Priced ≤10¢: 16/659 resolved YES Weekly Brier: K 0.120 · P 0.089 (running K 0.125 · P 0.095) odds-drift.com/calibration #PredictionMarkets
Midterms 2026 odds board · 37 days to Election Day Senate (D): K 62¢ (+1) · P 62¢ (+0) House (D): K 92¢ (+0) · P 92¢ (+0) TX Sen (D): K 61¢ (+0) · P 60¢ (-2) MI Sen (D): K 72¢ (-1) · P 70¢ (-2) OH Sen (D): K 59¢ (+0) · P 57¢ (+0) #Midterms2026 #PredictionMarkets
Biggest odds swings, last 24h P · Will Xiaomi have the best C… 1¢→87¢ (+86) · $35k K · Top Chinese AI Company week… 2¢→90¢ (+88) · $13k K · Top Chinese AI Company week… 1¢→90¢ (+89) · $5k K · Top Chinese AI Company this… 2¢→84¢ (+82) · $8k #PredictionMarkets #Kalshi #Polymarket
Midterms 2026 odds board · 38 days to Election Day Senate (D): K 61¢ (+0) · P 62¢ (+0) House (D): K 92¢ (+0) · P 92¢ (+0) TX Sen (D): K 61¢ (+2) · P 62¢ (+0) MI Sen (D): K 73¢ (-1) · P 72¢ (+0) OH Sen (D): K 59¢ (-1) · P 57¢ (-1) #Midterms2026 #PredictionMarkets
Midterms 2026 odds board · 39 days to Election Day Senate (D): K 61¢ (-2) · P 62¢ (-4) House (D): K 92¢ (+1) · P 92¢ (+0) TX Sen (D): K 59¢ (+0) · P 62¢ (+0) MI Sen (D): K 74¢ (+0) · P 72¢ (+0) OH Sen (D): K 60¢ (+1) · P 58¢ (-4) #Midterms2026 #PredictionMarkets
Midterms 2026 odds board · 40 days to Election Day Senate (D): K 63¢ (+2) · P 66¢ (+0) House (D): K 91¢ (+0) · P 92¢ (+0) TX Sen (D): K 59¢ (+0) · P 62¢ (+0) MI Sen (D): K 74¢ (+4) · P 72¢ (+0) OH Sen (D): K 59¢ (-2) · P 62¢ (+0) #Midterms2026 #PredictionMarkets
Midterms 2026 odds board · 41 days to Election Day Senate (D): K 61¢ (+0) · P 66¢ (+2) House (D): K 91¢ (+0) · P 92¢ (+0) TX Sen (D): K 59¢ (+0) · P 62¢ (+2) MI Sen (D): K 70¢ (+4) · P 72¢ (+5) OH Sen (D): K 61¢ (-1) · P 62¢ (+2) #Midterms2026 #PredictionMarkets
Midterms 2026 odds board · 42 days to Election Day Senate (D): K 61¢ (+2) · P 64¢ (+4) House (D): K 91¢ (+1) · P 92¢ (+0) TX Sen (D): K 59¢ (+0) · P 60¢ (+0) MI Sen (D): K 66¢ (+0) · P 67¢ (+1) OH Sen (D): K 62¢ (+6) · P 60¢ (+5) #Midterms2026 #PredictionMarkets
Calibration scorecard, week 38 Resolved: 1772 K, 330 P Priced ≥90¢ the day before: 252/257 resolved YES Priced ≤10¢: 37/812 resolved YES Weekly Brier: K 0.123 · P 0.072 (running K 0.126 · P 0.097) odds-drift.com/calibration #PredictionMarkets
Biggest odds swings, last 24h K · Will the number of distinct… 13¢→86¢ (+73) · $10k K · Will Drake have above 15M d… 9¢→71¢ (+62) · $13k K · Will the maximum temperatur… 38¢→97¢ (+59) · $9k K · Resident Evil Rotten Tomato… 20¢→66¢ (+46) · $22k #PredictionMarkets #Kalshi
Midterms 2026 odds board · 44 days to Election Day Senate (D): K 58¢ (-2) · P 60¢ (+0) House (D): K 90¢ (+0) · P 90¢ (+0) TX Sen (D): K 59¢ (+3) · P 60¢ (+0) MI Sen (D): K 65¢ (+2) · P 66¢ (+0) OH Sen (D): K 55¢ (-1) · P 55¢ (+0) #Midterms2026 #PredictionMarkets
Biggest odds swings, last 24h P · Trump x Greenland deal signed by De… 15¢→96¢ (+81) · $161k K · Will Trump say "Third Term" before… 6¢→99¢ (+93) · $9k P · Will "Spider-Man: Brand New Day" 8t… 22¢→94¢ (+72) · $18k #PredictionMarkets #Kalshi #Polymarket
Midterms 2026 odds board · 45 days to Election Day Senate (D): K 60¢ (+2) · P 60¢ (+0) House (D): K 90¢ (+1) · P 90¢ (+0) TX Sen (D): K 56¢ (-1) · P 60¢ (+3) MI Sen (D): K 63¢ (-2) · P 66¢ (+1) OH Sen (D): K 56¢ (+2) · P 55¢ (+0) #Midterms2026 #PredictionMarkets
Biggest odds swings, last 24h P · Will the price of Bitcoin be above… 3¢→79¢ (+76) · $63k K · Will Trump say "Barack Hussein Obam… 19¢→99¢ (+80) · $12k P · US x Iran ceasefire continues throu… 34¢→96¢ (+62) · $15k #PredictionMarkets #Kalshi #Polymarket
Midterms 2026 odds board · 46 days to Election Day Senate (D): K 58¢ (+3) · P 60¢ (+3) House (D): K 89¢ (+2) · P 90¢ (+2) TX Sen (D): K 55¢ (+1) · P 57¢ (+1) MI Sen (D): K 65¢ (+3) · P 66¢ (+4) OH Sen (D): K 54¢ (-1) · P 55¢ (-1) #Midterms2026 #PredictionMarkets
Midterms 2026 odds board · 47 days to Election Day Senate (D): K 55¢ (+2) · P 57¢ (+0) House (D): K 87¢ (+1) · P 88¢ (+0) TX Sen (D): K 54¢ (+1) · P 56¢ (+0) MI Sen (D): K 62¢ (+0) · P 62¢ (+0) OH Sen (D): K 55¢ (+0) · P 56¢ (+0) #Midterms2026 #PredictionMarkets
Midterms 2026 odds board · 48 days to Election Day Senate (D): K 53¢ (+3) · P 57¢ (+5) House (D): K 86¢ (+1) · P 88¢ (+0) TX Sen (D): K 53¢ (+1) · P 56¢ (+6) MI Sen (D): K 62¢ (+1) · P 62¢ (+0) OH Sen (D): K 55¢ (+1) · P 56¢ (+2) #Midterms2026 #PredictionMarkets
Midterms 2026 odds board · 49 days to Election Day Senate (D): K 50¢ (+1) · P 52¢ (+0) House (D): K 85¢ (-1) · P 88¢ (+2) TX Sen (D): K 52¢ (+2) · P 50¢ (+2) MI Sen (D): K 61¢ (-1) · P 62¢ (+0) OH Sen (D): K 54¢ (+1) · P 54¢ (+2) #Midterms2026 #PredictionMarkets
Calibration scorecard, week 37 Resolved: 1665 K, 298 P Priced ≥90¢ the day before: 204/214 resolved YES Priced ≤10¢: 12/646 resolved YES Weekly Brier: K 0.129 · P 0.088 (running K 0.127 · P 0.103) odds-drift.com/calibration #PredictionMarkets
Biggest odds swings, last 24h K · Will it rain in Oklahoma Ci… 6¢→99¢ (+93) · $25k K · Will Trump say "Bibi / Neta… 8¢→99¢ (+91) · $23k K · Practical Magic 2 Rotten To… 17¢→96¢ (+79) · $6k K · What will Mike Johnson say… 45¢→1¢ (-44) · $10k #PredictionMarkets #Kalshi
Midterms 2026 odds board · 51 days to Election Day Senate (D): K 49¢ (+1) · P 52¢ (+0) House (D): K 86¢ (+1) · P 86¢ (-2) TX Sen (D): K 50¢ (-1) · P 52¢ (+0) MI Sen (D): K 63¢ (+1) · P 62¢ (+0) OH Sen (D): K 53¢ (+0) · P 52¢ (+0) #Midterms2026 #PredictionMarkets
Biggest odds swings, last 24h K · What will Donald Trump say… 4¢→99¢ (+95) · $10k K · Will Trump say "Kamala" bef… 8¢→99¢ (+91) · $9k K · What will Donald Trump say… 16¢→99¢ (+83) · $14k K · Will it be reported by Metr… 83¢→17¢ (-66) · $141k #PredictionMarkets #Kalshi
Midterms 2026 odds board · 52 days to Election Day Senate (D): K 48¢ (+0) · P 52¢ (+0) House (D): K 85¢ (-1) · P 88¢ (+2) TX Sen (D): K 51¢ (+0) · P 52¢ (+2) MI Sen (D): K 62¢ (-2) · P 62¢ (-4) OH Sen (D): K 53¢ (+2) · P 52¢ (+0) #Midterms2026 #PredictionMarkets
Biggest odds swings, last 24h K · Will the copper close price… 93¢→2¢ (-91) · $7k P · Will the price of Ethereum… 25¢→94¢ (+69) · $13k P · Will "Hope" Opening Weekend… 42¢→97¢ (+55) · $41k P · Will the price of Ethereum… 29¢→89¢ (+60) · $11k #PredictionMarkets #Kalshi #Polymarket
Midterms 2026 odds board · 53 days to Election Day Senate (D): K 48¢ (+0) · P 52¢ (+0) House (D): K 86¢ (+1) · P 86¢ (-2) TX Sen (D): K 51¢ (+0) · P 50¢ (+0) MI Sen (D): K 64¢ (+0) · P 66¢ (+1) OH Sen (D): K 51¢ (-2) · P 52¢ (-4) #Midterms2026 #PredictionMarkets
Biggest odds swings, last 24h K · Will Elaine Pelino be the Republica… 81¢→1¢ (-80) · $84k P · Will an AI lab announce another Mil… 6¢→66¢ (+60) · $33k P · Will OpenAI announce another Millen… 10¢→67¢ (+57) · $23k #PredictionMarkets #Kalshi #Polymarket
Midterms 2026 odds board · 54 days to Election Day Senate (D): K 48¢ (+0) · P 52¢ (+0) House (D): K 85¢ (+0) · P 88¢ (+2) TX Sen (D): K 51¢ (+3) · P 50¢ (+0) MI Sen (D): K 64¢ (+0) · P 65¢ (-1) OH Sen (D): K 53¢ (-1) · P 56¢ (+0) #Midterms2026 #PredictionMarkets
Biggest odds swings, last 24h K · Will average **gas prices**… 13¢→99¢ (+86) · $11k K · Will there be at least 9 pr… 6¢→97¢ (+91) · $5k K · Will Mamdani sign above 0 e… 13¢→98¢ (+85) · $8k K · Will the copper close price… 17¢→96¢ (+79) · $6k #PredictionMarkets #Kalshi
Midterms 2026 odds board · 55 days to Election Day Senate (D): K 48¢ (+0) · P 52¢ (+0) House (D): K 85¢ (+0) · P 86¢ (-2) TX Sen (D): K 48¢ (-1) · P 50¢ (+0) MI Sen (D): K 64¢ (+0) · P 66¢ (+0) OH Sen (D): K 54¢ (+0) · P 56¢ (+0) #Midterms2026 #PredictionMarkets
Biggest odds swings, last 24h K · Practical Magic 2 Rotten To… 66¢→5¢ (-61) · $21k K · Will average **gas prices**… 15¢→68¢ (+53) · $7k P · Trump declassifies new UFO… 69¢→22¢ (-47) · $11k K · Will the minimum temperatur… 51¢→1¢ (-50) · $7k #PredictionMarkets #Kalshi #Polymarket
Midterms 2026 odds board · 56 days to Election Day Senate (D): K 48¢ (+1) · P 52¢ (+0) House (D): K 85¢ (+0) · P 88¢ (+0) TX Sen (D): K 49¢ (+0) · P 50¢ (+0) MI Sen (D): K 64¢ (+1) · P 66¢ (+2) OH Sen (D): K 54¢ (+0) · P 56¢ (+0) #Midterms2026 #PredictionMarkets
Settled in the last 24h UPSET · P · Will MrBeast's next video get between 35 an… → YES · was 6¢ ~24h before · $40k P · Will the price of Bitcoin be above $82,000… → NO · was 2¢ ~24h before · $120k Upsets (≤15¢ or ≥85¢ the day before) in 30 days: 214 #PredictionMarkets #Polymarket
Calibration scorecard, week 36 Resolved: 1630 K, 371 P Priced ≥90¢ the day before: 246/253 resolved YES Priced ≤10¢: 30/734 resolved YES Weekly Brier: K 0.126 · P 0.075 (running K 0.126 · P 0.107) odds-drift.com/calibration #PredictionMarkets
Biggest odds swings, last 24h K · Will it rain in Boston on S… 18¢→99¢ (+81) · $35k K · Will Trump say "Moon" befor… 5¢→84¢ (+79) · $26k K · Will the #1 Movie on Netfli… 10¢→97¢ (+87) · $7k K · Top Coding AI this month (A… 18¢→77¢ (+59) · $8k #PredictionMarkets #Kalshi
Settled in the last 24h P · Will the price of Bitcoin be abov… → YES · was 99¢ ~24h before · $192k P · Will the price of Bitcoin be abov… → NO · was 42¢ ~24h before · $125k P · Will the price of Bitcoin be abov… → NO · was 4¢ ~24h before · $98k #PredictionMarkets #Polymarket
Midterms 2026 odds board · 58 days to Election Day Senate (D): K 47¢ (+0) · P 52¢ (+0) House (D): K 85¢ (+0) · P 88¢ (+0) TX Sen (D): K 49¢ (+0) · P 50¢ (+0) MI Sen (D): K 64¢ (+0) · P 66¢ (+2) OH Sen (D): K 54¢ (+0) · P 56¢ (+0) #Midterms2026 #PredictionMarkets
Biggest odds swings, last 24h K · Will inflation in Brazil be below 4… 5¢→98¢ (+93) · $39k P · Israel closes its airspace by Septe… 10¢→73¢ (+63) · $591k K · Will Trump say "Who are you with /… 11¢→99¢ (+88) · $9k #PredictionMarkets #Kalshi #Polymarket
Midterms 2026 odds board · 59 days to Election Day Senate (D): K 47¢ (+0) · P 52¢ (+0) House (D): K 85¢ (+1) · P 88¢ (-2) TX Sen (D): K 49¢ (+0) · P 50¢ (+0) MI Sen (D): K 64¢ (+1) · P 64¢ (+0) OH Sen (D): K 54¢ (+1) · P 56¢ (+0) #Midterms2026 #PredictionMarkets
Biggest odds swings, last 24h K · Onslaught Rotten Tomatoes score? —… 95¢→7¢ (-88) · $28k K · What states will redistrict before… 90¢→17¢ (-73) · $26k K · Will Democratic win the House race… 21¢→84¢ (+63) · $18k #PredictionMarkets #Kalshi #Polymarket
Midterms 2026 odds board · 60 days to Election Day Senate (D): K 47¢ (-1) · P 52¢ (+0) House (D): K 84¢ (-1) · P 90¢ (+0) TX Sen (D): K 49¢ (+0) · P 50¢ (+0) MI Sen (D): K 63¢ (-1) · P 64¢ (-2) OH Sen (D): K 53¢ (+0) · P 56¢ (+1) #Midterms2026 #PredictionMarkets
Biggest odds swings, last 24h K · Bitcoin price on Sep 4, 2026? — $79… 16¢→82¢ (+66) · $67k P · Will any AI model reach 1520 Overal… 14¢→86¢ (+72) · $24k P · Will Bitcoin reach $82,000 August 3… 8¢→68¢ (+60) · $74k #PredictionMarkets #Kalshi #Polymarket
Midterms 2026 odds board · 61 days to Election Day Senate (D): K 48¢ (+0) · P 52¢ (+2) House (D): K 85¢ (+0) · P 90¢ (+2) TX Sen (D): K 49¢ (-1) · P 50¢ (+0) MI Sen (D): K 64¢ (-1) · P 66¢ (+2) OH Sen (D): K 53¢ (-2) · P 55¢ (+0) #Midterms2026 #PredictionMarkets
Biggest odds swings, last 24h K · Will Trump endorse at least 15 peop… 10¢→99¢ (+89) · $8k P · Will OpenAI’s Astra model be releas… 11¢→82¢ (+71) · $45k P · Will Iran target Iraq by September… 29¢→98¢ (+69) · $21k #PredictionMarkets #Kalshi #Polymarket
Midterms 2026 odds board · 62 days to Election Day Senate (D): K 48¢ (-1) · P 50¢ House (D): K 84¢ (+0) · P 88¢ TX Sen (D): K 51¢ (+0) · P 50¢ MI Sen (D): K 64¢ (+0) · P 64¢ OH Sen (D): K 55¢ (+0) · P 55¢ GA Sen (D): K 93¢ (+1) · P 94¢ #Midterms2026 #PredictionMarkets
Midterms 2026 odds board · 63 days to Election Day Senate (D): K 49¢ (+0) · P 50¢ (+0) House (D): K 84¢ (-1) · P 88¢ (-2) TX Sen (D): K 50¢ (-1) · P 50¢ (+0) MI Sen (D): K 64¢ (+0) · P 64¢ (+0) OH Sen (D): K 54¢ (+0) · P 55¢ (+0) #Midterms2026 #PredictionMarkets
Calibration scorecard, week 35 Resolved: 1548 K, 255 P Priced ≥90¢ the day before: 257/270 resolved YES Priced ≤10¢: 14/606 resolved YES Weekly Brier: K 0.121 · P 0.064 (running K 0.126 · P 0.128) odds-drift.com/calibration #PredictionMarkets
