# LEDGER RECAP — Monday, March 30, 2026 ### "Grading the Portfolio | Refining the Algorithm" --- **HOST (Alex Mercer):** Welcome back to the Ledger Recap. I'm Alex Mercer. Across from me, as always, is Marcus Webb. Marcus, we just closed out a midweek-weekend stretch and—look, the record looks good. But we've got some things to unpack. **ANALYST (Marcus Webb):** We always do. Alex Mercer: Before we get into the film room, quick reminder for the desk on how we track. We work in prediction market units. If we buy a contract at 60 cents, we're risking 0.60 units to win 0.40. Pure risk-based accounting—what we put in, what we got back, no fluff. --- ## 📊 THE SCORECARD Alex Mercer: Alright. The tape. Session record: 14 wins, 3 losses, 1 push. Eighteen positions total. Net on the session: plus five units. Marcus Webb: Which sounds great until you do the math. Alex Mercer: Say it. Marcus Webb: Fourteen wins. Eighteen positions. And we netted five units. That's an average of roughly 35 cents of profit per winning contract. We were buying a lot of 50-cent contracts to win 50 cents. That's fine—but when your win rate is this high, you have to ask whether the position sizing matched the conviction. Alex Mercer: We'll get into that. Overall record now sits at 297 and 252 with 15 pushes. Plus 10.1 units on the season. The ledger is green. But Marcus is right—the efficiency question is real, and we're going to address it. Let's go to the film room. --- ## 🎬 THE FILM ROOM ### POSITION 1: CLIPPERS -8.5 — LOSS (-0.53u) Alex Mercer: Let's start with the one that still stings. Clippers minus-8.5 against Indiana. We bought at 53 cents. Final score: Clippers 114, Pacers 113. Marcus Webb: One point. We needed nine. Alex Mercer: Walk me through it. Marcus Webb: The thesis was sound on paper. Indiana was shorthanded, the Clippers had home court, and the line implied a comfortable double-digit cushion. But here's the systemic issue—the Clippers were up big at multiple points in that game, and Kawhi Leonard, who is historically a closer, took over late. The problem is that *we* needed a blowout, not a close win. And Kawhi closing games means the Pacers stayed competitive enough to keep it within striking distance. Alex Mercer: He hit a game-winning jumper with 0.4 seconds left. Completing a 24-point comeback. Marcus Webb: Right. So here's the chain: Indiana was down big, which forced them into a pace-and-space survival mode—more threes, more possessions. The Clippers, comfortable with the lead, went conservative. Slowed the pace, protected the rim, stopped attacking. That let Indiana claw back. And when Kawhi sealed it at the buzzer, it was a one-point win instead of a ten-point win. We needed the blowout. We got the thriller. Alex Mercer: Bad beat or bad thesis? Marcus Webb: Honestly? Bad beat with a structural flaw. We should have been more careful about buying a large spread position on a team that has Kawhi Leonard—a player whose entire identity is making close games *closer*, not blowing them open. He doesn't pour it on. He finishes. That's a real market inefficiency we priced wrong. Alex Mercer: Noted for the playbook. Loss: minus 0.53 units. --- ### POSITION 2: SPURS -17.5 AND STEPHON CASTLE OVER 16.5 — DOUBLE WIN (+1.06u combined) Alex Mercer: Now let's talk about the Spurs. Because this was a two-position night and both hit. Spurs minus-17.5 at 55 cents, and Stephon Castle over 16.5 points at 46 cents. Final score: Spurs 127, Bucks 95. Marcus Webb: Thirty-two point margin. Castle went for 22. Both settle green. Alex Mercer: The Bucks were missing Giannis. That was the thesis. Marcus Webb: That was *part* of the thesis. Here's the full chain: Giannis is Milwaukee's entire defensive anchor and their primary offensive initiator. Without him, the Bucks have no credible interior presence—they can't protect the paint, and they can't generate half-court offense at a high level. The Spurs, meanwhile, are a young team that *thrives* in transition and open-court situations. When you remove Milwaukee's rim protection, San Antonio's guards and wings get downhill all night. That's exactly what happened. And Castle— Alex Mercer: Twenty-two, ten, and ten. Historic triple-double for a rookie. Marcus Webb: Which brings me to the alpha question. We were right. We were also too safe. Alex Mercer: How much did we leave on the table? Marcus Webb: The Spurs won by 32. We bought minus-17.5. There were almost certainly alt spread contracts available at minus-22, minus-25. If we had the conviction to buy the spread at all—and we clearly did—we should have been asking: *what's the highest line we can justify given what we know?* A minus-25 contract against a Giannis-less Bucks team on a Spurs eight-game winning streak? That's a position worth exploring. Alex Mercer: So the missed alpha is real. Marcus Webb: It's real. We made roughly a unit combined on these two. A more aggressive spread position could have doubled that. The conviction was there. The aggression wasn't. --- ### POSITION 3: MAGIC VS. RAPTORS — RAPTORS -1.5 FIRST HALF — WIN (+0.44u) Alex Mercer: Alright, let's talk about the one that made *everyone* look twice. Raptors minus-1.5 first half at 56 cents. We bought it. Final halftime score: Toronto 70, Orlando 43. Marcus Webb: Twenty-seven point halftime lead. Alex Mercer: The Raptors set an NBA play-by-play era record with a 31-0 scoring run spanning the first and second quarters. Scottie Barnes had 15 assists in the *game*. Marcus Webb: Here's the systemic read on this one: Orlando's defense is built around their halfcourt scheme—switching, protecting the paint, forcing mid-range. But when you go down 20 early, you *have* to abandon that scheme. You start fouling, you start gambling for steals, you extend your defense. And Toronto, who has been playing fast all season with Barnes as the engine, absolutely feasted on that. The 31-0 run wasn't random. It was the Raptors punishing a defense that had to overextend. Alex Mercer: And the first-half contract was the right vehicle here. Marcus Webb: It was. But again—aggressive alpha review. We bought minus-1.5 at 56 cents. We won by 27 at the half. If we had conviction on Toronto in the first half, why weren't we looking at minus-8, minus-10 first-half contracts? The implied probability on a blowout first half was underpriced given what we knew about Orlando's recent defensive struggles. Alex Mercer: Missed alpha. Marcus Webb: Significant missed alpha. --- ### POSITION 4: BUFFALO SABRES -1.5 — LOSS (-0.42u) Alex Mercer: The Sabres. Minus-1.5 puck line at 42 cents. Final: Buffalo 3, Seattle 2. Marcus Webb: Won the game. Lost the contract. Alex Mercer: They won by one. We needed two. Marcus Webb: The thesis here was that Seattle was in a spiral—bad road record, nothing to play for, Sabres at home. And the Sabres *did* win. But here's the chain of causation on why they didn't cover: Rasmus Dahlin scored his 100th career NHL goal in this game. That's a milestone moment. Those games have a funny way of tightening up emotionally—the crowd goes electric, the opponent digs in, and you end up with a gritty one-goal game instead of the clinical win you projected. Alex Mercer: And Shane Wright went down with an injury after a hit. Marcus Webb: Which actually *helped* Seattle, in a perverse way. When you lose a key player, the remaining guys tend to consolidate, play tighter, and the game slows down. That's exactly what happened. Seattle lost their best forward and responded by playing a suffocating, low-event third period. One-goal game. We lose the contract. Alex Mercer: Bad beat or bad thesis? Marcus Webb: Structural flaw on the puck line. A minus-1.5 contract in hockey is a 42-cent position—you're paying for certainty that rarely exists in a sport decided by one or two goals. We were right on the winner. We were wrong to demand a two-goal cushion in what was always going to be a competitive game. --- ### POSITION 5: JARRETT ALLEN OVER 10.5 POINTS — WIN (+0.51u) Alex Mercer: Let's end the film room on a clean one. Jarrett Allen over 10.5 points at 49 cents. Heat-Cavaliers. Allen goes for 18. Cleveland wins 149-128. Marcus Webb: First game back from a knee injury. And we bought the over. Alex Mercer: That's the contrarian angle. Most of the market was probably discounting him—return from injury, load management concerns, rust. The implied probability was essentially a coin flip at 49 cents. Marcus Webb: Right. And here's the systemic logic: Cleveland won by 21. When a team wins by 21, their starters are playing meaningful minutes in the first three quarters, accumulating stats organically. Allen didn't need to be *good*—he just needed to be present and functional in a blowout that kept the starters on the floor. The market priced him like he might struggle. We priced him like he just needed to play. Alex Mercer: Max Strus going off for 29 and eight threes against his former team—that actually helped us. Miami was so focused on stopping Strus that Allen had clean looks all night. Marcus Webb: Exactly. Strus pulled the defensive attention, Allen operated freely in the paint. Chain of causation. That's the thesis working as designed. --- ## 📚 STRATEGIC EVOLUTION Alex Mercer: Alright, Marcus. Playbook update. What did this session teach us? Marcus Webb: Two things. First—conviction calibration. We went 14 and 3 this session and made five units. That's a *structural problem* disguised as a good result. When we have high conviction—and we clearly did, given the win rate—we need to be buying more aggressive contracts. Alt spreads instead of the main line. Tighter props. Positions where the market is further mispriced, not just slightly off. Alex Mercer: The Spurs game is the case study. Marcus Webb: Perfect case study. We knew the Bucks were gutted without Giannis. We knew the Spurs were on a run. We bought minus-17.5 when the game suggested minus-25 was the sharper position. The conviction was a nine. The aggression was a six. Alex Mercer: And the second lesson? Marcus Webb: Puck line discipline. Hockey minus-1.5 contracts are traps for teams that win close games. Unless we have a strong structural reason to believe a team will win by *two or more*—dominant power play, opponent on a back-to-back, significant goaltending gap—we should be buying the moneyline and accepting the lower payout. The Sabres game is a direct data point. Right team, wrong contract structure. Alex Mercer: So the rule update is: in hockey, default to the moneyline unless the two-goal case is explicit and documented. Marcus Webb: That's the rule. Write it in. --- ## 🎤 OUTRO Alex Mercer: That's the session. Fourteen and three, plus five units. The ledger is green, the algorithm is sharper, and the missed alpha is now on the board—which means next session, we come in with the calibration dialed up. Marcus Webb: Iron sharpens iron. Alex Mercer: Before we go, remember—everything we discuss here is a post-market analysis of our own positions in prediction markets like Polymarket and Kalshi. We are grading our portfolio, not giving you a roadmap. Do your own research, size your positions responsibly, and understand the markets you're trading. Opinions expressed are for informational purposes only. Bet responsibly. --- **