Fantasy Hockey Tools
A set of tools for fantasy hockey managers. Currently live:
- Draft Assistant (
/draft) - see below.
- Skaters (
/skaters) - every skater ranked by C-Score over Last 5 / Last 10 /
Season / Last Season, split into Forwards and Defense, plus Compare and a Drop &
Replace flow for streaming. Drop & Replace can stage several adds as one move and
shows their combined starts day by day, so two streamers can't both count the
same open slot.
- Goalies (
/goalies) - Start Tracker (each goalie's recent vs. season share
of starts) and Spot Starts (ranked by estimated win probability).
- Deployment (
/deployment) - skaters whose ice time or power-play share in
their most recent game jumped or dropped against a chosen baseline. Split into
Forwards and Defense tabs, 50 players per page. A Current Roles tab shows
each skater's raw TOI, PP TOI and PP share (last game, last 4, or season),
sortable by column - pair it with Unowned to scan free agents.
- Trade Targets (
/trades) - buy-low skaters: strong C-Score but running
below their own career S%, oiS% and IPP. With a Yahoo league connected it
shows who owns each one, and "Build Offer" ranks your skaters as 1-for-1
offers by whether they fill a hole or thin spot in that team's lineup,
whether your own lineup stays full, and how close their points per game are.
Skaters and Deployment can filter to unowned players. With a Yahoo league
connected they use that league's real free agents; otherwise they use a manual
roster.
Getting Started
npm run dev
Open http://localhost:3000.
Draft Assistant
At /draft. Workflow:
- Import a ranking — upload a CSV of your player rankings (or a projections
export) and map its columns to the app's fields. Common header names (
Name,
Team, Pos, Rank, ADP, G, ...) are auto-detected. Only a name column is
required; if there's no Rank column, the row order in your file is used as the
ranking. Grab the "Download an example CSV" link on the upload screen if you want
a template to start from.
- Set league settings — team count, your team, roster slots, draft rounds.
- Draft live — the Cheat Sheet shows players in ranked order. Click "Draft" as
picks happen (yours or opponents') to advance the snake draft board. My Team and
Pick Suggestions update as you go. Its Schedule column shows a Low/Med/High
badge per player for how much their team's schedule overlaps with players you've
already rostered at a shared position (dual/tri-eligible players are checked
against all of their positions, and UTIL counts too) — hover a badge to see which
of your teams it's comparing against. Nothing rostered at a shared position yet?
Always Low. This resets to 0 relative to your current roster, not a fixed
per-team stat, so it's most useful once you've got a few picks in at a position.
- Schedule tab — shows which teams play the most on league-wide "off-nights"
(light game-volume dates), pulled live from the NHL API — useful for
streaming-friendly picks late in the draft.
- Schedule Fit tab — pick a position, and it ranks the remaining players there
by how much their team's schedule overlaps with your already-rostered players at
that same position (computed live from the full NHL season schedule, same source
as the Schedule tab). Lower overlap means more distinct game-days covered if
you're rostering multiple players at that spot — useful for deciding between two
similarly-ranked players at a thin position.
Stat projections and scoring are optional and layered on top: if your CSV also
includes stat columns (goals, assists, etc.), configure points-per-stat under
Settings and the Cheat Sheet switches to ranking by computed Fantasy Points and
Value Over Replacement (VOR) instead, with auto-generated tiers.
All draft state (players, scoring, picks) persists to localStorage, so a page
refresh mid-draft won't lose anything. Use "Reset draft picks" or "Clear all players"
in Settings to start over.
CSV format
One row per player. At minimum needs a name column; team, position, rank, ADP, and
stat columns are all optional and mapped manually on import. See src/lib/csv.ts
(FIELD_ALIASES) for the column keys recognized out of the box — you can add any
other stat as a custom scoring entry.
Yahoo positions (optional)
If your ranking CSV's positions don't exactly match Yahoo's fantasy eligibility
(e.g. a dual-eligible C/LW player), the app can apply Yahoo's own position data
automatically on every import - no login, no per-user step, for anyone using the
app. This comes from src/data/yahoo-positions.json, a bundled dataset built once
(and refreshable anytime) from a CSV of Yahoo player data:
npm run build:yahoo-positions -- path/to/your-file.csv
It auto-detects the Name/Position/Team columns (same alias matching as the main
ranking import - see src/lib/csv.ts) and writes src/data/yahoo-positions.json.
Since positions rarely change mid-season, you'd typically only need to do this once
before drafting. For one-off touch-ups afterward (a player who was missed, or whose
eligibility changed), Settings also has a manual paste box: copy a small
Name + Position table and paste it in to update just those players in your current
session (this one doesn't touch the bundled file).
If a player's name in your ranking CSV doesn't match the bundled dataset (different
spelling, nickname, etc.), positions just won't be applied for them - no error, they
keep whatever position was in your CSV. Tell me the mismatched name pairs and I can
add them as aliases in src/data/yahoo-positions.json.
ADP (optional)
Same idea as positions, for Average Draft Position: src/data/adp.json, built from a
Name,ADP CSV via:
npm run build:adp -- path/to/your-file.csv
This is the beginning of the README. Read the rest at the original. Read the full README ↗
