Kalshi · Baseball
williammassey is a MLB pro on Kalshi: 30 picks, 66.7% win rate, $315 profit. Real on-chain positions, updated daily.
Of the 60 most recent predictions listed below ( to ), 60 have settled: 33 won, 27 lost, 55.0% accuracy.
| League | Records | Settled | Won | Accuracy |
|---|---|---|---|---|
| MLB | 30 | 30 | 20 | 66.7% |
| FIFA World Cup | 22 | 22 | 10 | 45.5% |
| NBA | 4 | 4 | 3 | — |
| WNBA | 1 | 1 | 0 | — |
| Premier League | 1 | 1 | 0 | — |
| NFL | 1 | 1 | 0 | — |
williammassey mainly predicts MLB: 30 of the last 60 recorded predictions. Platform: Kalshi.
Across the settled orders we have collected: 66.7% hit rate over 30 orders, P&L $315, ROI 44.8%. In MLB, 20 of 30 recent settled predictions were correct.
Hit rate = correct settled predictions ÷ settled predictions; pending ones are not counted. P&L and ROI use the cost and settlement of each public position. Past results do not predict future ones.
Source: public positions on Kalshi. Data as of 2026-10-27 01:55 UTC+0. Method: methodology
| Date | Match | Pick | Result |
|---|---|---|---|
| 2026-10-27 | Golden State Valkyries 64:55 Atlanta Dream WNBA | Atlanta wins | Lost |
| 2026-10-24 | Chelsea F.C. (Chelsea FC) 0:2 Tottenham Hotspur F.C. (Tottenham) Premier League | Chelsea wins | Lost |
| 2026-10-24 | Boston Celtics 107:103 New York Knicks NBA | New York wins | Lost |
| 2026-10-23 | Orlando Magic 93:115 Minnesota Timberwolves NBA | Minnesota wins | Won |
| 2026-10-22 | Chicago Bears 30:24 New England Patriots NFL | New England wins | Lost |
| 2026-10-22 | Los Angeles Lakers 127:105 Golden State Warriors NBA | Los Angeles L wins | Won |
| 2026-10-21 | FC Bayern Munich (Bayern Munich) 2:2 Arsenal F.C. (Arsenal FC) Champions League | Arsenal wins | Lost |
| 2026-10-21 | Miami Heat (Heat) 106:131 Minnesota Timberwolves NBA | Minnesota wins | Won |
| 2026-08-23 | Milwaukee Brewers 2:4 Atlanta Braves MLB | Atlanta vs Milwaukee First Inning Run | Won |
| 2026-08-17 | Minnesota Twins 4:2 Atlanta Braves MLB | Atlanta vs Minnesota Winner | Lost |
| 2026-08-17 | Minnesota Twins 4:2 Atlanta Braves MLB | Atlanta vs Minnesota First Inning Run | Lost |
| 2026-08-15 | Atlanta Braves 3:10 Arizona Diamondbacks MLB | Arizona vs Atlanta Winner | Lost |
| 2026-08-15 | Atlanta Braves 3:10 Arizona Diamondbacks MLB | Arizona vs Atlanta First Inning Run | Lost |
| 2026-08-14 | Atlanta Braves 0:2 Arizona Diamondbacks MLB | Arizona vs Atlanta Winner | Lost |
| 2026-08-14 | Atlanta Braves 0:2 Arizona Diamondbacks MLB | Arizona vs Atlanta First Inning Run | Lost |
| 2026-08-13 | Minnesota Twins 1:7 Philadelphia Phillies MLB | Philadelphia vs Minnesota First Inning Run | Lost |
| 2026-08-12 | Atlanta Braves 6:3 New York Mets MLB | New York M vs Atlanta Winner | Won |
| 2026-08-12 | Atlanta Braves 6:3 New York Mets MLB | New York M vs Atlanta First Inning Run | Won |
| 2026-08-11 | Atlanta Braves 4:0 New York Mets MLB | New York M vs Atlanta Winner | Won |
| 2026-08-11 | Atlanta Braves 4:0 New York Mets MLB | New York M vs Atlanta First Inning Run | Won |
| 2026-08-10 | Atlanta Braves 5:8 New York Mets MLB | New York M vs Atlanta First Inning Run | Lost |
| 2026-08-09 | San Diego Padres 7:2 Houston Astros MLB | Houston vs San Diego First Inning Run | Won |
| 2026-08-09 | New York Yankees 1:2 Atlanta Braves MLB | Atlanta vs New York Y First Inning Run | Won |
| 2026-08-09 | New York Yankees 1:2 Atlanta Braves MLB | Atlanta vs New York Y Winner | Won |
| 2026-08-08 | New York Yankees 5:4 Atlanta Braves MLB | Atlanta vs New York Y Winner | Lost |
| 2026-08-08 | New York Yankees 5:4 Atlanta Braves MLB | Atlanta vs New York Y First Inning Run | Won |
| 2026-08-07 | New York Yankees 5:4 Atlanta Braves MLB | Atlanta vs New York Y First Inning Run | Won |
| 2026-08-07 | New York Yankees 5:4 Atlanta Braves MLB | Atlanta vs New York Y Winner | Won |
| 2026-08-06 | Atlanta Braves 11:3 Miami Marlins MLB | Miami vs Atlanta First Inning Run | Won |
| 2026-08-06 | Atlanta Braves 11:3 Miami Marlins MLB | Miami vs Atlanta Winner | Won |
| 2026-08-05 | Atlanta Braves 4:1 Miami Marlins MLB | Miami vs Atlanta Winner | Won |
| 2026-08-05 | Atlanta Braves 4:1 Miami Marlins MLB | Miami vs Atlanta First Inning Run | Won |
| 2026-08-04 | Atlanta Braves 4:2 Miami Marlins MLB | Miami vs Atlanta Winner | Won |
| 2026-08-01 | Atlanta Braves 8:3 Washington Nationals MLB | ATL -1.5 | Won |
| 2026-08-01 | Atlanta Braves 8:3 Washington Nationals MLB | Washington vs Atlanta Winner | Won |
| 2026-08-01 | Atlanta Braves 8:3 Washington Nationals MLB | Washington vs Atlanta First Inning Run | Lost |
| 2026-07-29 | New York Mets 0:1 Atlanta Braves MLB | Atlanta vs New York M Winner | Won |
| 2026-07-18 | France 4:6 England men's national association football team (England) FIFA World Cup | France vs England: To Advance | Lost |
| 2026-07-15 | England men's national association football team (England) 1:2 Argentina men's national football team (Argentina) FIFA World Cup | England vs Argentina: To Advance | Won |
| 2026-07-11 | Norway men's national association football team (Norway) 1:1 England men's national association football team (England) FIFA World Cup | Norway vs England: To Advance | Lost |
| 2026-07-10 | Spain men's national football team (Spain) 2:1 Belgium men's national football team (Belgium) FIFA World Cup | Spain vs Belgium: To Advance | Won |
| 2026-07-07 | Switzerland men's national football team (Switzerland) 0:0 Colombia men's national football team (Colombia) FIFA World Cup | Switzerland vs Colombia: To Advance | Lost |
| 2026-07-06 | USA 1:4 Belgium men's national football team (Belgium) FIFA World Cup | USA vs Belgium Winner | Lost |
| 2026-07-06 | USA 1:4 Belgium men's national football team (Belgium) FIFA World Cup | Folarin Balogun: 1+ goals | Lost |
| 2026-07-06 | Portugal men's national football team (Portugal) 0:1 Spain men's national football team (Spain) FIFA World Cup | Portugal vs Spain Winner | Won |
| 2026-07-06 | USA 1:4 Belgium men's national football team (Belgium) FIFA World Cup | USA vs Belgium: To Advance | Lost |
| 2026-07-05 | Mexico men's national football team (Mexico) 2:3 England men's national association football team (England) FIFA World Cup | Mexico vs England: To Advance | Lost |
| 2026-07-05 | Brazil men's national football team (Brazil) 1:2 Norway men's national association football team (Norway) FIFA World Cup | Brazil vs Norway: To Advance | Won |
| 2026-07-03 | Argentina men's national football team (Argentina) 1:1 Cape Verde men's national football team (Cape Verde) FIFA World Cup | Argentina win in Penalty Shootout | Lost |
| 2026-07-03 | Argentina men's national football team (Argentina) 1:1 Cape Verde men's national football team (Cape Verde) FIFA World Cup | ARG +2.5 | Won |
| 2026-07-03 | Argentina men's national football team (Argentina) 1:1 Cape Verde men's national football team (Cape Verde) FIFA World Cup | Over 2.5 | Lost |
| 2026-07-03 | Australia men's national soccer team (Australia) 1:1 Egypt men's national football team (Egypt) FIFA World Cup | Egypt win in Penalty Shootout | Won |
| 2026-07-02 | Portugal men's national football team (Portugal) 2:1 Croatia men's national football team (Croatia) FIFA World Cup | Portugal vs Croatia: To Advance | Lost |
| 2026-07-02 | USA 2:0 Bosnia and Herzegovina men's national football team (Bosnia and Herzegovina) FIFA World Cup | USA vs Bosnia and Herzegovina: To Advance | Won |
| 2026-06-21 | Belgium men's national football team (Belgium) 0:0 IR Iran FIFA World Cup | Belgium vs IR Iran Winner | Lost |
| 2026-06-20 | Germany 2:1 Ivory Coast men's national football team (Ivory Coast) FIFA World Cup | Germany vs Ivory Coast Winner | Lost |
| 2026-06-20 | Atlanta 4:3 Milwaukee MLB | Milwaukee vs Atlanta Winner | Won |
| 2026-06-20 | Germany 2:1 Ivory Coast men's national football team (Ivory Coast) FIFA World Cup | Germany vs Ivory Coast Winner | Won |
| 2026-06-20 | Netherlands 5:1 Sweden men's national football team (Sweden) FIFA World Cup | Netherlands vs Sweden Winner | Won |
| 2026-06-19 | USA 2:0 Australia men's national soccer team (Australia) FIFA World Cup | USA vs Australia Winner | Won |