Cardinals vs. Nationals O/U 13.5: Nine and Six Add Up Fast

The scoreboard at Nationals Park told the story before the seventh inning stretch. Washington scored nine runs. St. Louis scored six. The combined total of fifteen blew past the 13.5 over/under line by a run and a half, pushing this Polymarket contract to full resolution.

The St. Louis Cardinals faced the Washington Nationals on April 6, 2026 at Nationals Park. The game resolved as an over on the 13.5 total, with the final score Cardinals 6, Nationals 9. The market closes April 13, 2026. YES traded at 100% probability on $270,107 in total volume.

How the Cardinals vs. Nationals O/U 13.5 Contract Works

YES resolves if the combined run total for both teams exceeds 13.5 runs. NO resolves if the combined total lands at 13 or fewer. The Nationals and Cardinals combined for exactly fifteen runs on April 6, satisfying the YES condition.

• YES (Over 13.5 combined runs): $1.00 per share, 100% probability
• NO (Under 13.5 combined runs): $0.00 per share, 0% probability

The Nationals needed nine runs to push the total past the line on their own. Washington cleared 13.5 with St. Louis contributing six. Any scenario where pitching held either team to a combined total under fourteen runs would have resolved NO.

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Market Signals and Conviction Around the Final Line

The 24-hour price momentum jumped 50 percentage points, moving from an opening price of $0.50 to full resolution at $1.00. That move aligned directly with the game unfolding in Washington. No single pre-game catalyst pushed this contract. The game itself drove every dollar of the move.

Total market volume reached $270,107, with $270,039 of that trading in the final 24 hours. Liquidity stood at $755,254. Those numbers confirm that nearly all market activity concentrated on game day, consistent with a live-bet contract that resolved in a single afternoon.

• The Nationals scored nine runs, the Cardinals added six, producing a fifteen-run combined total.
• Cardinals reliever Kent Waldichuk surrendered home runs to Juan Yepez Urias and Jordan Walker in the sixth and eighth innings, pushing St. Louis’s total upward in the final frames.
• Washington starter Zach Littell held early, but the Cardinals scored six across the full game, a number that mattered as the total climbed.
• The 24-hour price change of +50.0% reflects real-time scoring, not pre-game positioning or forecast models.
• Open interest at $0 confirms the contract has fully resolved with no outstanding exposure remaining.

Lines Analysis: What Pushed the Cardinals and Nationals Past the Number

Washington’s nine-run performance was the primary driver. Urias delivered three RBIs on his home run in the sixth inning off Waldichuk. Nick Burleson added an RBI. Walker contributed a solo shot in the eighth. The Nationals built their lead incrementally and St. Louis never stopped contributing runs late.

The NO side required a combined shutdown. Pallante pitched efficiently for St. Louis, generating ground balls and limiting fly-ball damage in his innings. If Pallante had extended his start deeper and Waldichuk had never entered, the total might have threatened the under. Waldichuk surrendering two home runs in two innings was the specific sequence that locked the over.

• Waldichuk allowing back-to-back home runs to Urias and Walker is the swing sequence to track for future Cardinals lineup analysis.
• Washington’s nine-run output suggests the Nationals offense is generating real run-scoring opportunities, a directional positive for future over markets.
• Pallante’s ground-ball profile suppresses scoring when his command holds, a factor that keeps future Cardinals totals in range.
• Cardinals bullpen depth concerns flagged pre-game proved accurate when Waldichuk entered late and surrendered multiple runs.
• Volume concentration in the final 24 hours indicates this market tracked live scoring rather than pre-game expectation.

The $270,107 in total volume confirms genuine market participation. The data favors the YES side definitively. The fifteen-run combined total resolved this contract with no ambiguity.

LINES VERDICT

Over Confirmed

Washington’s nine-run output combined with St. Louis’s six pushed the total well past the line. The market resolved exactly as a fifteen-run game demands.

Frequently Asked Questions

What does 100% probability mean for this contract? The contract has fully resolved. YES holders receive $1.00 per share because the combined run total of fifteen exceeded 13.5. No uncertainty remains in this market.

What would have resolved the NO side? The Nationals and Cardinals would have needed to combine for 13 runs or fewer. Washington alone scored nine, making a NO resolution impossible before the Cardinals batted in the eighth.

What moved the price from $0.50 to $1.00 in 24 hours? Real-time scoring drove the price. As Washington and St. Louis added runs throughout April 6, the combined total crossed 13.5 and traders pushed YES to full resolution at $1.00.

When does this market close? The resolution date is April 13, 2026. The underlying game resolved April 6, 2026 with a final score of Nationals 9, Cardinals 6.

Is the $270,107 in volume a reliable liquidity signal? The $270,039 in 24-hour volume accounts for nearly all trading. Liquidity of $755,254 supported the contract through resolution. Those figures confirm the market had sufficient depth to absorb the move to 100%.

This analysis reflects market conditions as of 2026-04-06 20:11:54. Prediction market probabilities are volatile and shift as new information emerges, especially as the April 13, 2026 resolution date approaches. Lines.com does not accept bets or provide financial or gambling advice. All match outcomes are uncertain.