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Crown Green Handicap

Kevin Costall

Team: Oxton Cons BDivision: Division BLast updated: 9/29/2026

Rating

865

Current Handicap

9
Honours
Season:

33

Matches Played

17

Wins

16

Losses

52%

Win Rate

7.3

Avg Win Margin

10.7

Avg Loss Margin

10-9

Home Record

7-7

Away Record

Milestones

Career

No career milestones yet — keep bowling!

Next goal: Decade Player4/10

Season Highlights

No season milestones recorded yet.

Handicap Trend

All Time · 33 matches

+9 Rising
26 Apr2 Jun30 Jun28 Jul9 Aug17 Aug15 Jun10 May6 Jun-13712
Started0
Lowest0
Current9
Win Percentage(35%)
52%
score+0.03→contribution+0.01
Avg Winning Margin(23%)
7.3
score-0.12→contribution-0.03
Avg Losing Margin(15%)
10.7
score-0.45→contribution-0.07
Recent Form (last 20)(10%)
55%
score+0.10→contribution+0.01
Opponent Strength(15%)
944
score-0.04→contribution-0.01
Weighted Score-0.081
Sample Size Confidence
19%(33/75 matches)
Rating967 → shrunk 994→ adjusted 869
Handicap9

Formula: Rating = 1000 + (weighted score × 400). Each factor is normalized to −1…+1, multiplied by its weight, then summed. Bayesian shrinkage: the raw rating is pulled toward 1000 by a confidence factor (matches ÷ 75), so players with few games don't get extreme handicaps. Recency blend: the shrunk all-time rating is blended with a separate rating from the seasons selected in Handicap Calculation Years (currently 2022, 2023, 2024, 2025, 2026), weighted up to 40% based on recent match volume (30+ matches = full 40%). Players with no recent matches keep their all-time rating unchanged. Rating is mapped to handicap 0–15 (lower = stronger).

League

17W16L33 matches·51.5% win rate
ClubSeasonsDivision(s)PWLWin %
Oxton Cons B2016–2019Division B, Division A31161551.6%
Oxton Cons2016–2018Division A21150%
DateOpponentH/AScoreResultMarginCompetitionDivision
6/6/2019Brian LusseyH3-21LOSS-18LeagueDivision B
5/23/2019Zoe StrattonH8-21LOSS-13LeagueDivision B
5/14/2019Steve CrightonH18-21LOSS-3LeagueDivision B
5/2/2019Colin LitsterH21-11WIN+10LeagueDivision B
5/10/2018John LewisH21-18WIN+3LeagueDivision A
8/10/2017Kath DaviesH18-21LOSS-3LeagueDivision A
8/3/2017Matthew WilkinsonA21-19WIN+2LeagueDivision A
6/22/2017Phil HellyerA3-21LOSS-18LeagueDivision A
6/15/2017Mark HadfieldH21-8WIN+13LeagueDivision A
6/8/2017Don JonesA3-21LOSS-18LeagueDivision A
5/16/2017Rick MurrayH20-21LOSS-1LeagueDivision A
5/11/2017Roy McgunigallA5-21LOSS-16LeagueDivision A
8/17/2016vs Lever Club BA21-11WIN+10LeagueDivision B
8/16/2016John BennionA21-15WIN+6LeagueDivision B
8/15/2016Tony LeeH19-21LOSS-2LeagueDivision B
8/11/2016Phil GordonH21-9WIN+12LeagueDivision B
8/9/2016Irene BrettH21-19WIN+2LeagueDivision B
8/4/2016Keith FraserA21-19WIN+2LeagueDivision B
8/3/2016Jessie TipladyA21-10WIN+11LeagueDivision B
8/2/2016Peter BreenH21-4WIN+17LeagueDivision B
7/28/2016Geoff DewhurstH14-21LOSS-7LeagueDivision A
7/21/2016Phil NorburyH21-14WIN+7LeagueDivision B
7/19/2016Ray PriceA8-21LOSS-13LeagueDivision B
7/12/2016Ken HoltH21-15WIN+6LeagueDivision B
6/30/2016Ronnie JonesH15-21LOSS-6LeagueDivision B
6/28/2016Derek WilliamsA21-10WIN+11LeagueDivision B
6/9/2016David OwenH5-21LOSS-16LeagueDivision B
6/7/2016Chris TippeyA15-21LOSS-6LeagueDivision B
6/2/2016Jessie TipladyH21-18WIN+3LeagueDivision B
5/31/2016Roger HamerA1-21LOSS-20LeagueDivision B
5/12/2016Ken HoltA10-21LOSS-11LeagueDivision B
4/27/2016vs Tixall CA21-14WIN+7LeagueDivision B
4/26/2016Leslie HobbsH21-19WIN+2LeagueDivision B
1 Cup Title Won
Andy Dawson Cup 2016· Oxton Cons B
Andy Dawson Cup3 games · 1W 1×
2016 Winner3 rounds
RoundOpponentTeamScoreResultTeam
Quarters RoundJoan JonesBromborough Recs20-21LOSSWON
Semi Final RoundTony LeeLever Club B21-7WINWON
Final RoundEddie LeathamCammell Laird17-21LOSSWON
George ONeill Trophy4 games · 1W
20171 round
RoundOpponentTeamScoreResultTeam
Round of 32 RoundRussell Seymour / Ricky PowellLedsham Royal9-15LOSSLOST
20163 rounds
RoundOpponentTeamScoreResultTeam
Round of 32 RoundJohn C Allen / Joan JonesBromborough Recs7-15LOSSWON
Round of 16 RoundBrian Shepherd / Derek WigfieldLever Club B15-8WINWON
Quarters RoundRichie Finch / Jamie SmithGladstone1-15LOSSLOST
Leverhulme Cup3 games · 1W
20171 round
RoundOpponentTeamScoreResultTeam
Round of 32 RoundPeter McbridePt Sunlight Vill & Wks15-21LOSSLOST
20162 rounds
RoundOpponentTeamScoreResultTeam
Round of 32 RoundPeter ChallinorBromborough Pool B21-14WINWON
Round of 16 RoundSteve SnowOxton Cons18-21LOSSLOST

Current Streak

3losses

In a slump

Longest Win Run

5

Career best winning streak

Longest Loss Run

3

Career worst losing streak

Last 540% win rate
LLLWW
Last 1040% win rate— steady
LLLWWLWLWL
OpponentWLTotalWin %Last Met
Jessie Tiplady202100%8/3/2016
Ken Holt11250%7/12/2016
Brian Lussey0110%6/6/2019
Zoe Stratton0110%5/23/2019
Steve Crighton0110%5/14/2019
Colin Litster101100%5/2/2019
John Lewis101100%5/10/2018
Kath Davies0110%8/10/2017
Matthew Wilkinson101100%8/3/2017
Phil Hellyer0110%6/22/2017
Biggest Win
Peter Breen (+17)8/2/2016
Heaviest Defeat
Roger Hamer (-20)5/31/2016
Best Season
201662% · 21 matches
Worst Season
201662% · 21 matches
Form Arc (1st half → 2nd half)
56% → 47%declining
Avg Opponent Rating Faced
92926 known · 7 unknown
vs Strong Opponents (rating ≥ 1000)
3-538% win rate
vs Weak Opponents (rating < 1000)
8-1044% win rate

By Division

Division B14-10 (58%)
Division A3-6 (33%)
Division A33.3%
3W·6L·9 played
Division B58.3%
14W·10L·24 played

Debut

Apr 26, 2016

Latest

Jun 6, 2019

Seasons Active

4 (3.1 yr span)

Matches / Season

8.3 (33 total)

Seasons

2016201720182019