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

Jim Mason

Team: Oxton ArgyleDivision: League 3Last updated: 10/24/2026

Rating

663

Current Handicap

13
Honours
Season:

113

Matches Played

53

Wins

60

Losses

47%

Win Rate

6.9

Avg Win Margin

7.3

Avg Loss Margin

31-26

Home Record

22-34

Away Record

100%

Handicap Confidence

Very Reliable
113 / 39 matches for full confidence· Last recorded match: 8/26/2022

A large recent sample: 113 matches in the 2024, 2025, 2026 window, comfortably past the 39-match benchmark for full confidence. The handicap is stable and only shifts as form changes.

Milestones

Career

50 Wins

53 wins

Next goal: Decade Player6/10
✦SEASON HIGHLIGHTS

No season milestones recorded yet.

Handicap Trend

All Time · 113 matches

+13 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.

22 Jul9 Jun18 May10 May29 Jul2 Jul20 May26 Aug-1371115

Gives 13 more chalks than at the start of this period.

Started0
Lowest0
Current13
Win Percentage(40%)
47%
score-0.06→contribution-0.02
Avg Winning Margin(25%)
6.9
score-0.18→contribution-0.04
Avg Losing Margin(15%)
7.3
score+0.11→contribution+0.02
Recent Form (last 20)(10%)
55%
score+0.10→contribution+0.01
Opponent Strength(10%)
749
score-0.37→contribution-0.04
Weighted Score-0.080
Sample Size Confidence
100%(113/39 matches)
Rating960 → shrunk 960→ adjusted 663
Handicap
13

Formula: Rating = 1000 + (weighted score × 500). 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 ÷ 39, 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

53W60L113 matches·46.9% win rate
ClubSeasonsDivision(s)PWLWin %
Oxton Argyle2019–2022League 361303149.2%
Penketh Argyle2016–2018League 3, Division 3, League 252232944.2%
DateOpponentH/AScoreResultMarginCompetitionDivision
8/26/2022vs Port Sunlight Village & Works BA7-21LOSS-14LeagueLeague 3
8/19/2022Cathy KavanaghH15-21LOSS-6LeagueLeague 3
8/5/2022Roy WestonH21-5WIN+16LeagueLeague 3
8/1/2022vs Bebington ParkA21-11WIN+10LeagueLeague 3
7/29/2022Kath DaviesA20-21LOSS-1LeagueLeague 3
7/22/2022Valerie CecchiniH21-18WIN+3LeagueLeague 3
7/15/2022Teresa DobsonA15-21LOSS-6LeagueLeague 3
7/8/2022Dave FinlayH21-15WIN+6LeagueLeague 3
7/4/2022Linette NashA17-21LOSS-4LeagueLeague 3
7/1/2022Stephen DaviesH21-7WIN+14LeagueLeague 3
6/27/2022vs Thingwall BH21-18WIN+3LeagueLeague 3
6/17/2022George McalenyA21-11WIN+10LeagueLeague 3
6/10/2022Roderick PrinceA14-21LOSS-7LeagueLeague 3
6/6/2022Billy ConroyH20-21LOSS-1LeagueLeague 3
5/30/2022vs New Brighton Quarry Vikings CH15-21LOSS-6LeagueLeague 3
5/27/2022Margie RatcliffA9-21LOSS-12LeagueLeague 3
5/23/2022John HirdH21-19WIN+2LeagueLeague 3
5/20/2022Mike DunneA21-17WIN+4LeagueLeague 3
5/13/2022Christine AutyA21-14WIN+7LeagueLeague 3
5/6/2022Martin SomervilleH21-18WIN+3LeagueLeague 3
4/29/2022Paul BentleyA21-18WIN+3LeagueLeague 3
4/22/2022Eddie CarvellH21-19WIN+2LeagueLeague 3
8/20/2021Anthony ClementsA15-21LOSS-6LeagueLeague 3
8/16/2021John LeeceH20-21LOSS-1LeagueLeague 3
8/13/2021Robert LeachH12-21LOSS-9LeagueLeague 3
8/2/2021vs Hoylake Central & Melrose BH17-21LOSS-4LeagueLeague 3
7/19/2021Nigel LoweA21-20WIN+1LeagueLeague 3
7/16/2021Mike CooperH21-13WIN+8LeagueLeague 3
7/12/2021John NashA19-21LOSS-2LeagueLeague 3
7/9/2021Rita GunnigleH21-14WIN+7LeagueLeague 3
7/5/2021Hanna LusseyA21-17WIN+4LeagueLeague 3
7/2/2021Nicky BaileyA21-17WIN+4LeagueLeague 3
6/28/2021Ross MilliganH21-19WIN+2LeagueLeague 3
6/21/2021vs Bebington ParkA21-17WIN+4LeagueLeague 3
6/14/2021Derek AyreA16-21LOSS-5LeagueLeague 3
6/11/2021Kevin PulhamH10-21LOSS-11LeagueLeague 3
6/4/2021Derek CarrollH21-12WIN+9LeagueLeague 3
5/28/2021John DaviesA21-19WIN+2LeagueLeague 3
8/30/2019Josephine CarrH21-13WIN+8LeagueLeague 3
8/19/2019Stephen PrestonA7-21LOSS-14LeagueLeague 3
8/12/2019Graham RobinsonH9-21LOSS-12LeagueLeague 3
8/9/2019Billy ConroyA17-21LOSS-4LeagueLeague 3
8/5/2019Teresa DobsonH21-11WIN+10LeagueLeague 3
8/2/2019Howard FernA6-21LOSS-15LeagueLeague 3
7/29/2019Derek ThomasA14-21LOSS-7LeagueLeague 3
7/26/2019Derek CarrollH21-7WIN+14LeagueLeague 3
7/22/2019Eric ParkinsonA18-21LOSS-3LeagueLeague 3
7/19/2019Eric ParkinsonH16-21LOSS-5LeagueLeague 3
7/15/2019Mike SmethurstH14-21LOSS-7LeagueLeague 3
7/12/2019Fred DohertyA11-21LOSS-10LeagueLeague 3
7/8/2019Jean BarnesH21-17WIN+4LeagueLeague 3
7/5/2019Rob SmedleyH12-21LOSS-9LeagueLeague 3
7/1/2019Derek SmithA14-21LOSS-7LeagueLeague 3
6/28/2019Sheila SpearingA21-15WIN+6LeagueLeague 3
6/17/2019Margie VickersA21-5WIN+16LeagueLeague 3
6/14/2019Kenny BrierleyH21-20WIN+1LeagueLeague 3
5/31/2019Elizabeth GreenA18-21LOSS-3LeagueLeague 3
5/17/2019Andy PorterH6-21LOSS-15LeagueLeague 3
5/10/2019Peter FishwickA12-21LOSS-9LeagueLeague 3
5/3/2019Phil SpencerA10-21LOSS-11LeagueLeague 3
4/26/2019vs Bebington ParkH21-19WIN+2LeagueLeague 3
8/17/2018Johnathan BendreyA21-19WIN+2LeagueLeague 3
8/10/2018Joshua BendreyH19-21LOSS-2LeagueLeague 3
7/20/2018Brenda CoppleH21-10WIN+11LeagueDivision 3
7/6/2018Roy BiggsH12-21LOSS-9LeagueLeague 3
7/2/2018Roy BrannonA20-21LOSS-1LeagueLeague 3
6/29/2018Derek CarrollH14-21LOSS-7LeagueLeague 3
6/15/2018Dave EastA13-21LOSS-8LeagueLeague 3
6/11/2018Mavis CamplinA21-19WIN+2LeagueLeague 3
6/8/2018Dorothy RowlandsH21-10WIN+11LeagueLeague 3
6/1/2018Alan GreenA7-21LOSS-14LeagueLeague 3
5/25/2018Ken RobertsH21-1WIN+20LeagueLeague 3
5/21/2018Phil SpencerA4-21LOSS-17LeagueLeague 3
5/18/2018Paul DraperH17-21LOSS-4LeagueLeague 3
5/11/2018Kish BalgobinA13-21LOSS-8LeagueLeague 2
5/4/2018Albert StanleyH21-13WIN+8LeagueLeague 2
8/18/2017Linda HowardH14-21LOSS-7LeagueLeague 3
8/7/2017Margie VickersA21-9WIN+12LeagueLeague 3
8/4/2017Bill GrayH17-21LOSS-4LeagueLeague 3
7/31/2017Gerard ByrneA12-21LOSS-9LeagueLeague 3
7/17/2017Lorna FosterA14-21LOSS-7LeagueDivision 3
7/14/2017Neil JonesH21-12WIN+9LeagueDivision 3
7/7/2017Derek AyreH21-19WIN+2LeagueLeague 3
6/30/2017Kevin PulhamA17-21LOSS-4LeagueLeague 3
6/23/2017Rick ShawA20-21LOSS-1LeagueLeague 3
6/16/2017Rick ShawH21-12WIN+9LeagueLeague 3
6/12/2017David EvansH8-21LOSS-13LeagueLeague 3
6/9/2017Paul CartyA15-21LOSS-6LeagueLeague 3
6/2/2017Linette NashH21-11WIN+10LeagueLeague 3
5/26/2017Dave GriffithsA21-15WIN+6LeagueLeague 3
5/19/2017Roger HamerA21-7WIN+14LeagueLeague 3
5/12/2017Roger HamerH21-14WIN+7LeagueLeague 3
4/24/2017Elizabeth GreenA21-15WIN+6LeagueLeague 3
4/21/2017Elizabeth GreenH21-11WIN+10LeagueLeague 3
8/19/2016Barbara PattersonH21-17WIN+4LeagueDivision 3
8/12/2016Brian SadlerA15-21LOSS-6LeagueDivision 3
8/8/2016Peter SteeleA12-21LOSS-9LeagueDivision 3
8/5/2016Roy BiggsH14-21LOSS-7LeagueDivision 3
8/1/2016Roy CookeA12-21LOSS-9LeagueLeague 3
7/29/2016Des ClarkeH17-21LOSS-4LeagueLeague 3
7/22/2016Derek ThomasH19-21LOSS-2LeagueLeague 3
7/8/2016Leonard WheddonA18-21LOSS-3LeagueLeague 3
7/1/2016Peter LimbH12-21LOSS-9LeagueLeague 3
6/24/2016Kenny BrierleyA13-21LOSS-8LeagueLeague 3
6/17/2016Margie VickersH14-21LOSS-7LeagueLeague 3
6/13/2016Dave GrundyA21-16WIN+5LeagueLeague 3
6/10/2016Archie GallowayH11-21LOSS-10LeagueLeague 3
6/3/2016Sarah KearneyA21-13WIN+8LeagueLeague 3
5/27/2016Marie RevansH21-10WIN+11LeagueLeague 3
5/20/2016Edwin BerryA21-18WIN+3LeagueLeague 3
5/16/2016Roger HamerH21-18WIN+3LeagueLeague 3
4/29/2016John McgibbonH3-21LOSS-18LeagueDivision 3
4/22/2016Ellie WoodA21-12WIN+9LeagueDivision 3
Cartwright Cup1 games · 0W
20191 round
RoundOpponentTeamScoreResultTeam
Preliminary RoundJim TunleyAlbany13-21LOSSLOST

Current Streak

2losses

In a slump

Longest Win Run

7

Career best winning streak

Longest Loss Run

10

Career worst losing streak

Last 540% win rate
LLWWL
Last 1050% win rate— steady
LLWWLWLWLW
OpponentWLTotalWin %Last Met
Bebington Park303100%8/1/2022
Derek Carroll21366.7%6/4/2021
Margie Vickers21366.7%6/17/2019
Elizabeth Green21366.7%5/31/2019
Roger Hamer303100%5/19/2017
Teresa Dobson11250%7/15/2022
Linette Nash11250%7/4/2022
Billy Conroy0220%6/6/2022
Derek Ayre11250%6/14/2021
Kevin Pulham0220%6/11/2021
Biggest Win
Ken Roberts (+20)5/25/2018
Heaviest Defeat
John Mcgibbon (-18)4/29/2016
Favourite Victim
Bebington Park3-0 H2H
Best Season
202259% · 22 matches
Worst Season
201935% · 23 matches
Form Arc (1st half → 2nd half)
43% → 51%improving
Avg Opponent Rating Faced
71198 known · 15 unknown
vs Strong Opponents (rating ≥ 1000)
0-10% win rate
vs Weak Opponents (rating < 1000)
44-5345% win rate

By Division

League 348-54 (47%)
Division 34-5 (44%)
League 21-1 (50%)
League 250%
1W·1L·2 played
League 347.1%
48W·54L·102 played
Division 344.4%
4W·5L·9 played

Debut

Apr 22, 2016

Latest

Aug 26, 2022

Seasons Active

6 (6.3 yr span)

Matches / Season

18.8 (113 total)

Seasons

201620172018201920212022