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Birkenhead Sync08/09/2026|
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Crown Green Handicap

David Cotterell

Team: Royden HallDivision: Division CLast updated: 9/29/2026

Rating

873

Current Handicap

9
Honours
Season:

13

Matches Played

10

Wins

3

Losses

77%

Win Rate

8.5

Avg Win Margin

6.3

Avg Loss Margin

7-1

Home Record

3-2

Away Record

Milestones

Career

No career milestones yet — keep bowling!

Next goal: Hot Streak 154/15

Season Highlights

No season milestones recorded yet.

Handicap Trend

All Time · 13 matches

+9 Rising
19 May26 May16 Jun2 Jul14 Jul16 Jul23 Jul-12510
Started0
Lowest0
Current9
Win Percentage(35%)
77%
score+0.54→contribution+0.19
Avg Winning Margin(23%)
8.5
score+0.08→contribution+0.02
Avg Losing Margin(15%)
6.3
score+0.28→contribution+0.04
Recent Form (last 20)(10%)
77%
score+0.54→contribution+0.05
Opponent Strength(15%)
748
score+0.28→contribution+0.04
Weighted Score+0.352
Sample Size Confidence
3%(13/75 matches)
Rating1141 → shrunk 1004→ adjusted 854
Recent 5-Season Rating (2022, 2023, 2024, 2025, 2026)876
Recency Blend17% (13 recent matches)
Final Blended Rating858
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

10W3L13 matches·76.9% win rate
ClubSeasonsDivision(s)PWLWin %
Royden Hall2026Division C1310376.9%
DateOpponentH/AScoreResultMarginCompetitionDivision
7/23/2026Alan SimpsonH21-16WIN+5LeagueDivision C
7/22/2026Steve Ball ***A21-10WIN+11LeagueDivision C
7/16/2026Pauline HainesH21-8WIN+13LeagueDivision C
7/15/2026Tony McsorleyH16-21LOSS-5LeagueDivision C
7/14/2026Pauline WelchA21-18WIN+3LeagueDivision C
7/9/2026Gary BrabanderH21-17WIN+4LeagueDivision C
7/2/2026Mark PeersH21-19WIN+2LeagueDivision C
7/1/2026Peter LimbA21-13WIN+8LeagueDivision C
6/16/2026David DunnA12-21LOSS-9LeagueDivision C
5/28/2026Charlie GibbH21-12WIN+9LeagueDivision C
5/26/2026Jimmy IvanoffA16-21LOSS-5LeagueDivision C
5/21/2026Ian RobertsH21-6WIN+15LeagueDivision C
5/19/2026June DawsonH21-6WIN+15LeagueDivision C

Current Streak

3wins

On a hot run

Longest Win Run

4

Career best winning streak

Longest Loss Run

1

Career worst losing streak

Last 580% win rate
WWWLW
Last 1080% win rate— steady
WWWLWWWWLW
OpponentWLTotalWin %Last Met
Alan Simpson101100%7/23/2026
Steve Ball ***101100%7/22/2026
Pauline Haines101100%7/16/2026
Tony Mcsorley0110%7/15/2026
Pauline Welch101100%7/14/2026
Gary Brabander101100%7/9/2026
Mark Peers101100%7/2/2026
Peter Limb101100%7/1/2026
David Dunn0110%6/16/2026
Charlie Gibb101100%5/28/2026
Biggest Win
Ian Roberts (+15)5/21/2026
Heaviest Defeat
David Dunn (-9)6/16/2026
Best Season
202677% · 13 matches
Worst Season
202677% · 13 matches
Form Arc (1st half → 2nd half)
67% → 86%improving
Avg Opponent Rating Faced
72712 known · 1 unknown
vs Weak Opponents (rating < 1000)
9-375% win rate
Division C76.9%
10W·3L·13 played

Debut

May 19, 2026

Latest

Jul 23, 2026

Seasons Active

1 (2 mo span)

Matches / Season

13.0 (13 total)

Seasons

2026