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Birkenhead Sync08/09/2026|
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Crown Green Handicap

Brian Chellam

Team: Thingwall BDivision: Division BLast updated: 10/24/2026

Rating

815

Current Handicap

10
Honours
Season:

45

Matches Played

21

Wins

24

Losses

47%

Win Rate

6.6

Avg Win Margin

9.5

Avg Loss Margin

13-11

Home Record

8-13

Away Record

100%

Handicap Confidence

Very Reliable
45 / 33 matches for full confidence· Last recorded match: 7/30/2026

A large recent sample: 45 matches in the 2022, 2023, 2024, 2025, 2026 window, comfortably past the 33-match benchmark for full confidence. The handicap is stable and only shifts as form changes.

Milestones

Career

No career milestones yet — keep bowling!

Next goal: 50 Wins21/50
✦SEASON HIGHLIGHTS

No season milestones recorded yet.

Handicap Trend

All Time · 45 matches

+10 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.

27 Jul2 Jul1 Aug10 Jun3 Jul19 May30 Jun30 Jul-125811

Gives 10 more chalks than at the start of this period.

Started0
Lowest0
Current10
Win Percentage(35%)
47%
score-0.07→contribution-0.02
Avg Winning Margin(23%)
6.6
score-0.23→contribution-0.05
Avg Losing Margin(15%)
9.5
score-0.26→contribution-0.04
Recent Form (last 20)(10%)
50%
score+0.00→contribution+0.00
Opponent Strength(15%)
897
score-0.18→contribution-0.03
Weighted Score-0.144
Sample Size Confidence
100%(45/33 matches)
Rating942 → shrunk 942→ adjusted 813
Recent 5-Season Rating (2022, 2023, 2024, 2025, 2026)817
Recency Blend40% (45 recent matches)
Final Rating815
Handicap
10

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

21W24L45 matches·46.7% win rate
ClubSeasonsDivision(s)PWLWin %
Thingwall B2023–2026Division B, Division C43212248.8%
Thingwall2023–2026Division A2020%
DateOpponentH/AScoreResultMarginCompetitionDivision
7/30/2026Mervyn PryceH21-9WIN+12LeagueDivision B
7/28/2026Matthew PeersA16-21LOSS-5LeagueDivision B
7/21/2026Edna CookA21-16WIN+5LeagueDivision B
7/16/2026Paul Stamp *A5-21LOSS-16LeagueDivision B
7/14/2026Martin HickmanA21-20WIN+1LeagueDivision B
7/2/2026Terry MilnerA9-21LOSS-12LeagueDivision B
6/30/2026Sandra CooperH21-14WIN+7LeagueDivision B
6/23/2026Paul Griffiths *A5-21LOSS-16LeagueDivision A
6/16/2026Graham Walker *A4-21LOSS-17LeagueDivision B
6/11/2026Alan OxtonH21-8WIN+13LeagueDivision B
5/28/2026Zoe StrattonH20-21LOSS-1LeagueDivision B
5/21/2026Phil Gordon *A3-21LOSS-18LeagueDivision B
5/19/2026Colin LitsterH21-14WIN+7LeagueDivision B
5/5/2026David MansfieldH17-21LOSS-4LeagueDivision B
8/5/2025Phillip SummersH21-11WIN+10LeagueDivision B
7/24/2025Tania GilfoyleH9-21LOSS-12LeagueDivision B
7/22/2025John RogersA7-21LOSS-14LeagueDivision B
7/8/2025Linda BiggsA21-20WIN+1LeagueDivision B
7/3/2025Phil SpencerH21-18WIN+3LeagueDivision B
7/1/2025Edna CookA21-8WIN+13LeagueDivision B
6/26/2025vs Heswall Rbl BA15-21LOSS-6LeagueDivision B
6/24/2025Joey LewisA21-16WIN+5LeagueDivision B
6/17/2025Brian SmithA21-17WIN+4LeagueDivision B
6/10/2025Paul LewinH21-16WIN+5LeagueDivision B
5/27/2025Ian PiercyH11-21LOSS-10LeagueDivision B
5/20/2025Alec HaynesA3-21LOSS-18LeagueDivision B
5/15/2025Graham HamblettH19-21LOSS-2LeagueDivision B
5/6/2025Peter JonesH17-21LOSS-4LeagueDivision B
8/6/2024Mark ProctorA21-19WIN+2LeagueDivision B
8/1/2024Sharon EllisH21-16WIN+5LeagueDivision B
7/25/2024Katrina LockwoodA5-21LOSS-16LeagueDivision B
7/23/2024Eddie MasseyA14-21LOSS-7LeagueDivision B
7/17/2024vs Arno TixallH19-21LOSS-2LeagueDivision B
7/9/2024Matthew PeersH21-20WIN+1LeagueDivision B
7/2/2024John BarkerH21-14WIN+7LeagueDivision B
6/4/2024Jeff HitchellH13-21LOSS-8LeagueDivision B
5/21/2024Harry MillingtonA12-21LOSS-9LeagueDivision B
5/7/2024Peter Smith JnrH11-21LOSS-10LeagueDivision B
8/31/2023Mike ElkinsH21-9WIN+12LeagueDivision C
8/10/2023Gerda EvansH12-21LOSS-9LeagueDivision C
7/27/2023Cathy KavanaghH21-13WIN+8LeagueDivision C
7/4/2023Tony McdonoughA21-12WIN+9LeagueDivision C
6/14/2023vs Pensby CA20-21LOSS-1LeagueDivision C
6/8/2023Nick Burridge JrH9-21LOSS-12LeagueDivision A
5/30/2023vs Bromborough Pool BH21-12WIN+9LeagueDivision C
George ONeill Trophy3 games · 1W
20261 round
RoundOpponentTeamScoreResultTeam
Preliminary RoundKeith Bailey / Ethan MarksPensby D15-0WINWON
20251 round
RoundOpponentTeamScoreResultTeam
Round of 16 RoundChris Griffiths-gripton / Gill SheenPensby A7-15LOSSLOST
20241 round
RoundOpponentTeamScoreResultTeam
Round of 16 RoundJune Buckley / Mal SmithRoyden Hall13-15LOSSLOST
Leverhulme Cup2 games · 1W
20261 round
RoundOpponentTeamScoreResultTeam
Preliminary RoundBrian DentonHeswall Rbl B21-17WINLOST
20251 round
RoundOpponentTeamScoreResultTeam
Preliminary RoundPeter McgheeCammell Laird13-21LOSSLOST
Andy Dawson Cup1 games · 0W
20261 round
RoundOpponentTeamScoreResultTeam
Preliminary RoundDave FearonGladstone B4-21LOSSLOST
Geoff Clare Trophy1 games · 1W
20231 round
RoundOpponentTeamScoreResultTeam
Quarters RoundAlan OotwynRoyden Hall21-12WINLOST

Current Streak

1wins

On a hot run

Longest Win Run

3

Career best winning streak

Longest Loss Run

4

Career worst losing streak

Last 560% win rate
WLWLW
Last 1050% win rate— steady
WLWLWLWLLW
OpponentWLTotalWin %Last Met
Matthew Peers11250%7/28/2026
Edna Cook202100%7/21/2026
Mervyn Pryce101100%7/30/2026
Paul Stamp *0110%7/16/2026
Martin Hickman101100%7/14/2026
Terry Milner0110%7/2/2026
Sandra Cooper101100%6/30/2026
Paul Griffiths *0110%6/23/2026
Graham Walker *0110%6/16/2026
Alan Oxton101100%6/11/2026
Biggest Win
Alan Oxton (+13)6/11/2026
Heaviest Defeat
Phil Gordon * (-18)5/21/2026
Best Season
202550% · 14 matches
Worst Season
202440% · 10 matches
Form Arc (1st half → 2nd half)
41% → 52%improving
Avg Opponent Rating Faced
86835 known · 10 unknown
vs Strong Opponents (rating ≥ 1000)
0-60% win rate
vs Weak Opponents (rating < 1000)
19-1066% win rate

By Division

Division B17-20 (46%)
Division C4-2 (67%)
Division A0-2 (0%)
Division A0%
0W·2L·2 played
Division B45.9%
17W·20L·37 played
Division C66.7%
4W·2L·6 played

Debut

May 30, 2023

Latest

Jul 30, 2026

Seasons Active

4 (3.2 yr span)

Matches / Season

11.3 (45 total)

Seasons

2023202420252026