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Crown Green Handicap

John Sinkinson

Team: Heswall RblDivision: Division ALast updated: 10/24/2026

Rating

1039

Current Handicap

5
Honours
Season:

29

Matches Played

17

Wins

12

Losses

59%

Win Rate

8.2

Avg Win Margin

7.9

Avg Loss Margin

10-4

Home Record

7-8

Away Record

77%

Handicap Confidence

Moderately Reliable
29 / 33 matches for full confidence· Last recorded match: 8/22/2017

A solid recent sample: 29 of 33 matches needed for full confidence in the 2022, 2023, 2024, 2025, 2026 window. The handicap is settling and now moves mainly with form.

Milestones

Career

No career milestones yet — keep bowling!

Next goal: 50 Wins17/50
✦SEASON HIGHLIGHTS

No season milestones recorded yet.

Handicap Trend

All Time · 29 matches

+5 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.

12 Jul27 Jul11 May1 Jun29 Jun13 Jul1 Aug22 Aug-1258

Gives 5 more chalks than at the start of this period.

Started0
Lowest0
Current5
Win Percentage(35%)
59%
score+0.17→contribution+0.06
Avg Winning Margin(23%)
8.2
score+0.04→contribution+0.01
Avg Losing Margin(15%)
7.9
score+0.01→contribution+0.00
Recent Form (last 20)(10%)
65%
score+0.30→contribution+0.03
Opponent Strength(15%)
979
score+0.15→contribution+0.02
Weighted Score+0.126
Sample Size Confidence
77%(29/33 matches)
Rating1051 → shrunk 1039
Handicap
5

Formula: Rating = 1000 + (weighted score × 400). Each factor is normalized to −1…+1, multiplied by its weight, then summed. Window: factors are computed from the Handicap Calculation Years only (2022, 2023, 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 ÷ 33, 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

17W12L29 matches·58.6% win rate
-7 since first recorded
ClubSeasonsDivision(s)PWLWin %
Heswall Rbl2017Division A2113861.9%
Lever Club2016Division A84450%
DateOpponentH/AScoreResultMarginCompetitionDivision
8/22/2017Colin PortisA15-21LOSS-6LeagueDivision A
8/15/2017Christian TitherA14-21LOSS-7LeagueDivision A
8/10/2017Steve CliffeH21-16WIN+5LeagueDivision A
8/3/2017Ian PiercyA21-9WIN+12LeagueDivision A
8/1/2017Ken ArnoldH16-21LOSS-5LeagueDivision A
7/27/2017Alan M JonesA21-10WIN+11LeagueDivision A
7/25/2017Paul LewisA21-11WIN+10LeagueDivision A
7/20/2017Peter WinstanleyH21-5WIN+16LeagueDivision A
7/13/2017Jamie HankinA21-11WIN+10LeagueDivision A
7/11/2017Allan ClarkeH21-17WIN+4LeagueDivision A
7/6/2017Dave SimcoeH20-21LOSS-1LeagueDivision A
7/4/2017Finlay HormbreyA21-17WIN+4LeagueDivision A
6/29/2017Mick HindsH21-6WIN+15LeagueDivision A
6/22/2017Andy DawsonA10-21LOSS-11LeagueDivision A
6/15/2017Dave RowlandH21-14WIN+7LeagueDivision A
6/8/2017Tom JamesA21-15WIN+6LeagueDivision A
6/1/2017Ritchie KirbyH21-13WIN+8LeagueDivision A
5/25/2017Ray LynchH11-21LOSS-10LeagueDivision A
5/18/2017Rick MurrayA21-15WIN+6LeagueDivision A
5/16/2017John RobertsH12-21LOSS-9LeagueDivision A
5/11/2017Jim IvanoffA19-21LOSS-2LeagueDivision A
8/16/2016Paul RolfeA10-21LOSS-11LeagueDivision A
8/9/2016David SmartA16-21LOSS-5LeagueDivision A
8/2/2016Anthony OneillA4-21LOSS-17LeagueDivision A
7/27/2016Peter McbrideH21-17WIN+4LeagueDivision A
7/21/2016Christian TitherA10-21LOSS-11LeagueDivision A
7/19/2016Peter HarrisonH21-18WIN+3LeagueDivision A
7/18/2016Ron RintoulH21-3WIN+18LeagueDivision A
7/12/2016Robert RogersH21-20WIN+1LeagueDivision A
George ONeill Trophy3 games · 2W
20173 rounds
RoundOpponentTeamScoreResultTeam
Round of 32 RoundDave Lewis / Anthony ThompsonParkfield10-15LOSSWON
Round of 16 RoundSue Wynne / Jean HughesHoylake Central & Melrose15-1WINWON
Quarters RoundSteven Gardner / Dave SimcoeLever Club15-11WINWON
Leverhulme Cup2 games · 2W
20172 rounds
RoundOpponentTeamScoreResultTeam
Round of 32 RoundJohn SmithBromborough Recs21-8WINWON
Round of 16 RoundPaul LewisGladstone21-11WINLOST

Current Streak

2losses

In a slump

Longest Win Run

5

Career best winning streak

Longest Loss Run

5

Career worst losing streak

Last 540% win rate
LLWWL
Last 1070% win rate↓ declining
LLWWLWWWWW
OpponentWLTotalWin %Last Met
Christian Tither0220%8/15/2017
Colin Portis0110%8/22/2017
Steve Cliffe101100%8/10/2017
Ian Piercy101100%8/3/2017
Ken Arnold0110%8/1/2017
Alan M Jones101100%7/27/2017
Paul Lewis101100%7/25/2017
Peter Winstanley101100%7/20/2017
Jamie Hankin101100%7/13/2017
Allan Clarke101100%7/11/2017
Biggest Win
Ron Rintoul (+18)7/18/2016
Heaviest Defeat
Anthony Oneill (-17)8/2/2016
Best Season
201762% · 21 matches
Worst Season
201762% · 21 matches
Form Arc (1st half → 2nd half)
50% → 67%improving
Avg Opponent Rating Faced
97524 known · 5 unknown
vs Strong Opponents (rating ≥ 1000)
6-650% win rate
vs Weak Opponents (rating < 1000)
8-467% win rate
Division A58.6%
17W·12L·29 played

Debut

Jul 12, 2016

Latest

Aug 22, 2017

Seasons Active

2 (1.1 yr span)

Matches / Season

14.5 (29 total)

Seasons

20162017