The Gate We Passed on an Unclosed Window
PlayerGem's gates include a window-closure check that failed silently — a rating passed through before the eligibilit...
Read itLatest Articles
The Gate We Passed on History Alone
PlayerGem writes up the miss where a player's unbroken gate history became the reason we stopped checking whether the...
Read itShrinkage We Removed for a Colleague's Confidence
PlayerGem removed a shrinkage rule at a colleague's urging and spent six weeks watching confident estimates drift fur...
Read itThe Gate We Passed Because the Corpus Looked Full
PlayerGem's account of a gate failure caused not by missing data but by corpus entries that were technically present ...
Read itThe Gate We Added Twice and Never Noticed
PlayerGem added the same disqualification gate twice, ran both in parallel for weeks, and only found out when calibra...
Read itConfidence Applied Correctly to the Wrong Question
PlayerGem's account of a calibration miss where the shop's confidence was well-founded — just aimed at a question tha...
Read itThe Grading Window We Reset After the Miss
PlayerGem reset a grading window mid-cycle after a bad miss — and then had to account for why that decision was worse...
Read itThe Gate We Inherited and Never Questioned
PlayerGem traces how an unexamined gate, copied from an early basketball corpus, quietly disqualified valid candidate...
Read itThe Gate We Trusted Because We Built It
PlayerGem's availability gate passed candidates it should have stopped — and the flaw was invisible precisely because...
Read itThe Gate We Added After the Fact and Called Foresight
PlayerGem's account of a gate invented after a miss, retrofitted into the process, and mistaken for prior judgment un...
Read itThe Gate We Rebuilt After a Retired Player
PlayerGem's availability gate passed a player who had retired mid-season — a miss that exposed how roster status and ...
Read itThe Gate We Passed Twice Before We Got It
PlayerGem's availability gate failed twice in the same way before the shop understood what it was actually measuring ...
Read itThe Gate We Closed Right for the Wrong Reason
PlayerGem closed a gate correctly — the player was genuinely unavailable — but the reasoning behind the decision was ...
Read itThe Gate We Closed Too Late
PlayerGem's account of an availability gate that ran eight days past its failure point, the ratings it contaminated, ...
Read itThe Shrinkage That Was Hiding a Real Signal
PlayerGem's shrinkage routine pulled a genuine outlier back toward the base rate for months before we noticed the mec...
Read itThe Corpus Built on the Wrong Stat Version
PlayerGem rebuilt a basketball corpus around a refined shot-creation metric and spent months grading ratings against ...
Read itWhen the Corpus Was Right and the Gates Were Not
PlayerGem's gates cleared candidates the corpus had already flagged as thin — a specific week where the two layers of...
Read itChasing a Pattern That Was Two Data Points
PlayerGem's account of rating a basketball player on a two-game pattern, why the corpus gates failed to catch it, and...
Read itWhat a Good Month Nearly Cost Us
PlayerGem's Misses desk on how a strong run of accurate ratings quietly eroded the shop's calibration discipline — an...
Read itThe Rating We Should Never Have Published
PlayerGem reconstructs the single rating that cleared every internal gate, earned our highest confidence label, and w...
Read itThe Bug That Looked Like a Finding
For six weeks we believed we had discovered something real about mid-season performance. We had discovered an off-by-one error in a date comparison.
Read articleThe Week Everything Was Confidently Wrong
Our worst week was not a week of bad luck. Every rating failed for the same reason, which means it was a single mistake made many times.
Read articleWe Graded Ourselves Generously for Months
Nobody cheated. The grading logic contained several small, individually defensible choices that all happened to point the same direction.
Read articleAll The Articles
- The Gate We Passed on an Unclosed Window
- The Gate We Passed on History Alone
- Shrinkage We Removed for a Colleague's Confidence
- The Gate We Passed Because the Corpus Looked Full
- The Gate We Added Twice and Never Noticed
- Confidence Applied Correctly to the Wrong Question
- The Grading Window We Reset After the Miss
- The Gate We Inherited and Never Questioned
- The Gate We Trusted Because We Built It
- The Gate We Added After the Fact and Called Foresight
- The Gate We Rebuilt After a Retired Player
- The Gate We Passed Twice Before We Got It
- The Gate We Closed Right for the Wrong Reason
- The Gate We Closed Too Late
- The Shrinkage That Was Hiding a Real Signal
- The Corpus Built on the Wrong Stat Version
- When the Corpus Was Right and the Gates Were Not
- Chasing a Pattern That Was Two Data Points
- What a Good Month Nearly Cost Us
- The Rating We Should Never Have Published
- The Bug That Looked Like a Finding
- The Week Everything Was Confidently Wrong
- We Graded Ourselves Generously for Months