These stats are under construction. If you want to see the sausage making
then please click here.
MLB Projections
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System
Magpie is an accuracy-weighted blend of Jackdaw and public projection systems.
Jackdaw is our own independent regression system, used as fallback where Magpie isn't published for a
player. How this works →
Create my rankings
Customize the real scoring and roster rules below to match your own league — every ranking, VOR, and Auction $ on this page recomputes live from whatever's set here.
Pick a real platform default below (or Points/Categories mode, where offered) as a starting point.
Edit any weight, roster slot, or category directly to match your own league's actual rules — nothing here is locked to the default.
Every ranking, VOR, and Auction $ value on this page recomputes immediately from whatever's currently set, not a fixed default.
The Risk slider (Floor/Projected/Ceiling) shifts those same rankings toward each player's real floor or ceiling, using the real spread across independent projection sources.
Scoring
Pick a real platform default below, or edit any number directly to match your
real league.
Standard roto categories -- deselect any that don't apply to your league, or
turn on extras below (only real, exactly-computable ones are offered; see js/app.js's own comment for
what's left out and why).
Risk
Moves rankings, VOR, and Auction $ (both league types) toward each player's
real floor or ceiling instead of the projected midpoint, using the real spread across independent
projection sources. A player without enough independent sources to measure a real spread is
unaffected.
Categories league ranks your
team across a chosen set of individual stats (the categories below), same as a real roto/head-to-head
categories league. Points league combines every stat into one weighted total instead -- pick whichever
matches your real league's actual format.
Moves rankings, VOR, and
Auction $ (both league types) toward each player's real floor or ceiling instead of the projected
midpoint, using the real spread across independent projection sources. A player without enough
independent sources to measure a real spread is unaffected.
Sleepers & Busts
Diff = ADP rank minus
system rank under your current scoring settings. A sleeper's system rank is much better than where the
market is drafting them; a bust's is much worse. Shown here: anyone the market and the model disagree on by
a full round or more (one round = your league size) — a gap of a spot or two isn't a real signal, just
where two reasonable rankings happen to differ.
How accurate is each system?
Jackdaw: strengths & weaknesses
Scoped to jackdaw_pd
specifically — the plate-discipline variant, both the licence-clean choice for publication (see the project
README) and, independently, the strongest all-around performer of the six Jackdaw variants this project
builds. Paul, 2026-08-25: "for jackdaw strengths and weaknesses we should show against the average and not
the baseline" — real, different numbers, computed by baseballstats: margin over the mean error across every
scored system in that cell (leave-one-out, so Jackdaw is never scored partly against its own opinion), over
the real drafted cohort (NFBC ADP phases, 13 pooled seasons 2012-2025 ex 2020). Refreshed 2026-08-26. Covers
every stat this site actually scores by default, both modes — the 5x5 roto categories (R/HR/RBI/SB/AVG,
W/SO/SV/ERA/WHIP) and the additional stats only defaultPointsWeights scores (1B/2B/3B/BB/HBP
for batters, H/ER/BB/HBP allowed for pitchers). outs (innings-pitched workload, not a rate
skill the way the rest of these are) is left out of the tiering below for the same reason a playing-time
projection isn't mixed into an accuracy read anywhere else on this site. + / ++ / +++ and
− — each tier is the number's rank within its own third of every positive (or negative)
value on this page, not a fixed cutoff.
A real, genuinely interesting wrinkle, checked directly rather than published on trust:
the numbers below are pooled across every drafted round. Split by early (rounds 1-10, elite/starter-caliber
picks) vs late (round 11+, deep/bench-caliber picks), batters and pitchers move in OPPOSITE directions.
Batters get MEASURABLY WEAKER in early rounds and MEASURABLY STRONGER in late rounds on R/HR/RBI/AVG
specifically — baseballstats' own diagnosis: Jackdaw's shrinkage discipline correctly regresses a marginal
late-round player's numbers, but over-corrects a genuinely elite early-round player's real production, so it
loses ground exactly where it's most conservative and gains it exactly where that conservatism is warranted.
Pitchers show close to the OPPOSITE pattern on several rate stats (W/ERA/WHIP/hits-allowed/earned-runs
stronger early, weaker late) — a real, different mechanism, not yet diagnosed as precisely. Saves is too
noisy to read either way in this split (small elite-closer sample). The pooled numbers below are still the
real, honest population-wide answer — not wrong, just one specific real question ("across everyone actually
drafted") rather than "for stars" or "for deep sleepers" specifically.
Batters — positive across the board against the field, real caveat above
Strengths
Triples +++
Hit by pitch +++
Batting average +++
Home runs ++
Doubles ++
Walks ++
RBI ++
Stolen bases +
Singles +
Runs, weakest of the group but still real +
Weaknesses
None — every scored batter stat beats the field average, pooled across every
drafted round (see the real early/late-round caveat above).
Pitchers — a real mix, rate stats strong, workload-adjacent stats weak
Strengths
ERA +++
WHIP +++
Hit batters allowed ++
Wins, weakest of the group but still real +
Weaknesses
Walks allowed −−−
Hits allowed −−−
Saves −− — real, but the least reliable number on this
page (see the caveat above: too small/noisy an elite-closer sample to trust the early/late split).