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Birkenhead Sync08/09/2026|
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Crown Green Handicap

Jim McMahon

Team: Rainford North EndDivision: Division 3Last updated: 10/24/2026

Rating

648

Current Handicap

15
Honours
Season:

42

Matches Played

7

Wins

35

Losses

17%

Win Rate

8.7

Avg Win Margin

10.5

Avg Loss Margin

4-16

Home Record

3-19

Away Record

13%

Handicap Confidence

Low Confidence
15 / 41 matches for full confidence· Last recorded match: 8/12/2026

Only 15 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: Decade Player5/10
✦SEASON HIGHLIGHTS

No season milestones recorded yet.

Handicap Trend

All Time · 42 matches

+15 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.

7 Jun19 Jul4 Oct20 Jun22 Aug16 Jul8 Apr12 Aug-14916

Gives 15 more chalks than at the start of this period.

Started0
Lowest0
Current15
Win Percentage(40%)
7%
score-0.87→contribution-0.35
Avg Winning Margin(25%)
1.0
score-1.00→contribution-0.25
Avg Losing Margin(15%)
10.3
score-0.38→contribution-0.06
Recent Form (last 20)(10%)
7%
score-0.87→contribution-0.09
Opponent Strength(10%)
745
score-1.00→contribution-0.10
Weighted Score-0.840
Sample Size Confidence
13%(15/41 matches)
Rating748 → shrunk 966→ adjusted 666
Recent 3-Season Rating (2024, 2025, 2026)574
Recency Blend20% (15 recent matches)
Final Rating648
Handicap
15

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

7W35L42 matches·16.7% win rate
ClubSeasonsDivision(s)PWLWin %
Rainford North End2022–2026Division 34273516.7%
DateOpponentH/AScoreResultMarginCompetitionDivision
8/12/2026B MurphyA5-21LOSS-16LeagueDivision 3
9/2/2025Brian ForsythH5-21LOSS-16LeagueDivision 3
6/11/2025Les TeelingA19-21LOSS-2LeagueDivision 3
5/27/2025Roy LesterA15-21LOSS-6LeagueDivision 3
4/22/2025S DuncanH1-21LOSS-20LeagueDivision 3
4/16/2025Barry CainA19-21LOSS-2LeagueDivision 3
4/8/2025G FrodshamA2-21LOSS-19LeagueDivision 3
9/17/2024Mike SmithA17-21LOSS-4LeagueDivision 3
8/20/2024Geoff ParrH11-21LOSS-10LeagueDivision 3
7/31/2024D FitzgeraldA18-21LOSS-3LeagueDivision 3
7/23/2024Anthony BurrowsH8-21LOSS-13LeagueDivision 3
7/16/2024Ernie HarrisonA13-21LOSS-8LeagueDivision 3
6/18/2024John BurrowsH21-20WIN+1LeagueDivision 3
6/11/2024Geoff ParrA8-21LOSS-13LeagueDivision 3
4/9/2024Steve SmithA9-21LOSS-12LeagueDivision 3
8/29/2023Ken ByromH11-21LOSS-10LeagueDivision 3
8/22/2023Eddie MiddlehurstA21-18WIN+3LeagueDivision 3
8/15/2023Charlie McFarlaneH9-21LOSS-12LeagueDivision 3
8/1/2023John HornH12-21LOSS-9LeagueDivision 3
7/11/2023John PickavanceA5-21LOSS-16LeagueDivision 3
7/4/2023Brian EgertonH21-4WIN+17LeagueDivision 3
6/28/2023D FitzgeraldA8-21LOSS-13LeagueDivision 3
6/20/2023Ken NaylorA21-15WIN+6LeagueDivision 3
6/13/2023Ian HillH21-4WIN+17LeagueDivision 3
5/16/2023Jim GoodeH11-21LOSS-10LeagueDivision 3
5/9/2023Peter PeersA18-21LOSS-3LeagueDivision 3
4/25/2023Mike SmithA8-21LOSS-13LeagueDivision 3
10/4/2022Mark WakefieldA8-21LOSS-13LeagueDivision 3
8/30/2022Roy AshcroftH9-21LOSS-12LeagueDivision 3
8/16/2022Geoff GaskellH9-21LOSS-12LeagueDivision 3
8/10/2022G WebsterA16-21LOSS-5LeagueDivision 3
7/26/2022Robert PageA7-21LOSS-14LeagueDivision 3
7/19/2022Anthony BurrowsH6-21LOSS-15LeagueDivision 3
7/5/2022Alan CrossH19-21LOSS-2LeagueDivision 3
6/28/2022Geoff SkeltonA21-12WIN+9LeagueDivision 3
6/21/2022Peter O'ConnorA7-21LOSS-14LeagueDivision 3
6/14/2022Ian HillH21-13WIN+8LeagueDivision 3
6/7/2022Geoff GaskellA4-21LOSS-17LeagueDivision 3
5/31/2022Kevin HighcockH14-21LOSS-7LeagueDivision 3
5/17/2022Alex WallaceH12-21LOSS-9LeagueDivision 3
4/19/2022Ken GreenallH8-21LOSS-13LeagueDivision 3
4/12/2022Terry DooleyH17-21LOSS-4LeagueDivision 3

Current Streak

12losses

In a slump

Longest Win Run

2

Career best winning streak

Longest Loss Run

12

Career worst losing streak

Last 50% win rate
LLLLL
Last 100% win rate— steady
LLLLLLLLLL
OpponentWLTotalWin %Last Met
Mike Smith0220%9/17/2024
Geoff Parr0220%8/20/2024
D Fitzgerald0220%7/31/2024
Anthony Burrows0220%7/23/2024
Ian Hill202100%6/13/2023
Geoff Gaskell0220%8/16/2022
B Murphy0110%8/12/2026
Brian Forsyth0110%9/2/2025
Les Teeling0110%6/11/2025
Roy Lester0110%5/27/2025
Biggest Win
Brian Egerton (+17)7/4/2023
Heaviest Defeat
S Duncan (-20)4/22/2025
Best Season
202333% · 12 matches
Worst Season
202213% · 15 matches
Form Arc (1st half → 2nd half)
19% → 14%declining
Avg Opponent Rating Faced
74442 known · 0 unknown
vs Weak Opponents (rating < 1000)
7-3517% win rate
Division 316.7%
7W·35L·42 played

Debut

Apr 12, 2022

Latest

Aug 12, 2026

Seasons Active

5 (4.3 yr span)

Matches / Season

8.4 (42 total)

Seasons

20222023202420252026