Random lane draw
Flip-over cards or automatic name draw, pairs or single-lane play, up to 60 lanes, auto-save.
Free · no sign-up
Free online bowling tools
14 handy tools to run a league or a tournament, calculate a handicap and improve on the lanes. Everything runs in your browser, no account needed: your data stays on your device.
Run a tournament or a bowling night
Lane draw, balanced teams, brackets, match points and Baker format.
Balanced teams
Build evenly matched teams from player averages, for a league, a tournament or a team-building event.
Brackets and prize pot
Fill 8-player brackets at random, enter the scores and calculate the winnings.
Match points and Peterson
League points per game and per series, Peterson points or match-play pinfall bonus.
Baker format
Bowling order and score sheet for a Baker game, where the team bowls a single game taking turns.
Manage a league
Handicap, averages and match schedule.
Handicap calculator
Calculate a handicap (base, percentage, cap) and find the fairest system for your league.
Average calculator
Official average (decimals dropped), best game and series, pins needed to gain a point.
League schedule
Generate a round-robin league schedule: every team plays every other team, with lane rotation.
Technique and lane play
Score, spares, adjustments, lane oil, ball speed and rev rate.
Score calculator
Score a game frame by frame: strikes, spares and the 10th frame according to the official rules.
3-6-9 spare system
Click the pins left standing: name of the leave, split or not, and the move to make for the spare.
2-for-1 adjustments
Where to place your feet and your target when the ball hooks too much or not enough.
Rule of 31 and lane oil
Ideal exit board based on the oil pattern length, ratio and pattern type.
Ball speed
Convert a time into km/h and mph, with a built-in stopwatch and benchmarks by level.
Rev rate (revs per minute)
Measure your ball's rotation in revolutions per minute and find your style: stroker, tweener or cranker.
Tools built for bowlers and organisers
These tools grew out of real needs: the league nights and tournaments organised in Morocco by the ASBM (Association Sportive du Bowling Marocain, the Moroccan Bowling Sports Association), the pioneering association of Moroccan bowling, and the questions players ask when they want to improve. They work on computers, tablets and phones, and can be projected on a big screen on competition night.
Each tool automatically saves your work in the browser: you can close the page and come back to your draw, your league or your brackets later, on the same device. To go further, read our bowling guide.