Crown Green HandicapFairPlay Bowls
Live
Birkenhead Sync08/09/2026|
Birkenhead Sync08/09/2026|
Back to Players
Crown Green Handicap

J Leach

Team: Unison ADivision: Division 2Last updated: 10/24/2026

Rating

863

Current Handicap

14
Honours
Season:

18

Matches Played

12

Wins

6

Losses

67%

Win Rate

6.9

Avg Win Margin

6.2

Avg Loss Margin

7-2

Home Record

5-4

Away Record

19%

Handicap Confidence

Low Confidence
18 / 41 matches for full confidence· Last recorded match: 9/3/2024

Only 18 of the 41 matches needed for full confidence in the 2024, 2025, 2026 window. The rating is pulled toward the league average, so the handicap may shift noticeably as more results arrive.

Milestones

Career

No career milestones yet — keep bowling!

Next goal: 50 Wins12/50
✦SEASON HIGHLIGHTS

No season milestones recorded yet.

Handicap Trend

All Time · 18 matches

+14 Rising
Win on the night Loss on the nightLower handicap = stronger player

The line re-checks the handicap after every match — from results, winning and losing margins, the strength of who was played, and home or away. Each dot is the number that applied going into the next game.

16 Apr21 May19 Jun2 Jul23 Jul13 Aug3 Sept-14916

Gives 14 more chalks than at the start of this period.

Started0
Lowest0
Current14
Win Percentage(40%)
67%
score+0.33→contribution+0.13
Avg Winning Margin(25%)
6.9
score-0.18→contribution-0.05
Avg Losing Margin(15%)
6.2
score+0.31→contribution+0.05
Recent Form (last 20)(10%)
67%
score+0.33→contribution+0.03
Opponent Strength(10%)
845
score+0.17→contribution+0.02
Weighted Score+0.184
Sample Size Confidence
19%(18/41 matches)
Rating1055 → shrunk 1011→ adjusted 861
Recent 3-Season Rating (2024, 2025, 2026)870
Recency Blend24% (18 recent matches)
Final Rating863
Handicap
14

Formula: Rating = 1000 + (weighted score × 300). Each factor is normalized to −1…+1, multiplied by its weight, then summed. Window: factors are computed from the Handicap Calculation Years only (2024, 2025, 2026), excluding walkovers — the same window the official recalculation uses. Bayesian shrinkage: the raw rating is pulled toward 1000 by confidence (window matches ÷ 41, an adaptive threshold set by the last recalculation). Offsets: division and B/C/D team offsets are then applied, weighted by where each window match was played. Recency blend: the calculation years are re-weighted at up to 40% by match volume. Players with a long career but fewer than 5 window matches fall back to their full career record. Rating maps to handicap 0–15 (lower = stronger) via the league's spread multiplier.

League

12W6L18 matches·66.7% win rate
ClubSeasonsDivision(s)PWLWin %
Unison A2024Division 21812666.7%
DateOpponentH/AScoreResultMarginCompetitionDivision
9/3/2024Andrew CharnockA21-6WIN+15LeagueDivision 2
8/27/2024John WhiteH21-7WIN+14LeagueDivision 2
8/20/2024Ged BrownH13-21LOSS-8LeagueDivision 2
8/13/2024David FryerA21-17WIN+4LeagueDivision 2
8/6/2024Brian YoungH21-19WIN+2LeagueDivision 2
7/30/2024Dave NimmoA16-21LOSS-5LeagueDivision 2
7/23/2024Bill ArnoldH21-18WIN+3LeagueDivision 2
7/9/2024Ron VizardH21-10WIN+11LeagueDivision 2
7/2/2024Eddie McLorieA21-20WIN+1LeagueDivision 2
6/25/2024Greg WinstanleyH15-21LOSS-6LeagueDivision 2
6/19/2024Steve DonnellyA12-21LOSS-9LeagueDivision 2
6/18/2024John WhiteA19-21LOSS-2LeagueDivision 2
6/11/2024Ed WebsterA21-16WIN+5LeagueDivision 2
5/21/2024Colin RamplingH21-17WIN+4LeagueDivision 2
5/14/2024Chris LeighA14-21LOSS-7LeagueDivision 2
5/7/2024Eddie TinsleyH21-9WIN+12LeagueDivision 2
4/16/2024Ged FinneyA21-12WIN+9LeagueDivision 2
4/9/2024Geoff GaskellH21-18WIN+3LeagueDivision 2

Current Streak

2wins

On a hot run

Longest Win Run

3

Career best winning streak

Longest Loss Run

3

Career worst losing streak

Last 580% win rate
WWLWW
Last 1070% win rate↑ improving
WWLWWLWWWL
OpponentWLTotalWin %Last Met
John White11250%8/27/2024
Andrew Charnock101100%9/3/2024
Ged Brown0110%8/20/2024
David Fryer101100%8/13/2024
Brian Young101100%8/6/2024
Dave Nimmo0110%7/30/2024
Bill Arnold101100%7/23/2024
Ron Vizard101100%7/9/2024
Eddie McLorie101100%7/2/2024
Greg Winstanley0110%6/25/2024
Biggest Win
Andrew Charnock (+15)9/3/2024
Heaviest Defeat
Steve Donnelly (-9)6/19/2024
Best Season
202467% · 18 matches
Worst Season
202467% · 18 matches
Form Arc (1st half → 2nd half)
56% → 78%improving
Avg Opponent Rating Faced
84518 known · 0 unknown
vs Weak Opponents (rating < 1000)
12-667% win rate
Division 266.7%
12W·6L·18 played

Debut

Apr 9, 2024

Latest

Sep 3, 2024

Seasons Active

1 (5 mo span)

Matches / Season

18.0 (18 total)

Seasons

2024