22 June 2026 - 2nd Year 2nd Quarter Profit and Loss. Early Doors V15 Experiment.
Funding the Early Doors V15 Experiment at a £40-per-week allowance. Strict bankroll management aimed at making each £40 last MORE than one week.
Coldjack & Turfpark Ted (Norseman and Gold Taker from Bookie Pilgrims)
2 min read
Hobbyist Trixie Strategy
Bankroll Status
19th to 25th January 2025
Starting Bankroll £30
5th March 2025 top-up total £90
Wk 1 £35 Wk 2 £32.01 Wk 3 £18.12
Wk 4 £30.31 WK 5 £33.76 Wk 6 £20.39
Wk 7 £37.14 Wk 8 £21.22 Wk9 £138.37 Wk 10 £119.82 wk 11 £58.42 wk 12 £29.47 wk 13 £4.69
20/4/25 4th top-up £30
WEEK £34.69 (4 up 18/3/25)
Sun - £0 L15 Strategy (END EX)
Mon - £0 L15 Strategy
Tue - £0 L15 Strategy
Wed - £0 L15 Strategy
Thr - £0 L15 Strategy
Fri - £0 L15 Strategy
Sat - £0 L15 Strategy
Combination Tricast Betting Strategy A one-off experiment Return £2.50 25/2/25
Note from Coldjack — V15 Review. After a 12 month wild ride, the experiment will continue during 2026. The results are in — and they’ve confirmed what the data hinted at all along: GPT predictions are risky "boom or bust" territory. Fun for the thrill, but they chew through bankroll unless the stars align & bankroll DISCIPLINE is maintained.
I pushed GPT to its limits (both logically and literally!), testing strategies that most punters wouldn't dare simulate, and it delivered some sharp lessons:
"Stumpy Loftson's daily £1 placepot (started Aug 2025) — bright, loud, and mostly miss the mark." nailed £285.50 04 Dec 2025 with 6 other minor payouts to date (APPROX. £169).
Yankee (30px11 daily) (now significant losses)
ROI: -£135.60 1st quarter 2026 (win & place, Dutch and LBS BFEX bets now cover losses INCURRED by yankee bets)
19th January 2025 - Starting Bankroll £30 - Offline BR £90
19th January 2026 - Inplay BR £13.57 - Offline Bank BR £450 (winnings) drawdown available for £40 top-ups as required.
Keep the wit sharp and the bets smarter—the universe still owes us all a winning streak! 😆🔥
✅ AJ the Hobbyist Comment – V15 status fully updated to reflect the sudden shift caused by the GPT‑4o retirement and backend rerouting. UK Betting Forum for full details. (04/02/2026)
🔧 Experimental Strategy under redevelopment - Continuing unannounced updates to GPT 5.4 by OpenAI mean the Early Doors V15 experiment is unstable at the moment (19/03/2026).
UK Betting Forum for stability performance report (12/03/2026).
✅ AJ the Hobbyist – V15 status fully updated to reflect the GPT 5.5 update UK Betting Forum for stability report (24/04/2026).
Early Doors V15 experiment build is stable at the moment (24/04/2026). The caution remains.
🚫 Caution for Real-Money Betting 👉 Only stake real money on any V15-based models unless every pick has been manually verified against live market, fig, and stable overlays.
2nd Year, 2nd Quarter Profit and Loss. Early Doors V15 Experiment.
Funding the Early Doors V15 Experiment at a £40-per-week allowance. Strict bankroll management aimed at making each £40 last MORE than one week.
Rolling Bankroll = 13 weeks x £40 = £520
Betfair Exchange P/L = +£55.07
Betfairsportsbook P/L = -£107.12
Total 3-month P/L = -£52.05
Offline Bankroll P/L = +£467.95 UNUSED BETTING ALLOWENCE
"Stumpy Loftson's daily £1 placepot (started Aug 2025) — bright, loud, and mostly miss the mark." nailed £285.50 04 Dec 2025 with 6 other minor payouts to date (APPROX. £169).
21/06/2026 STILL ACTIVE +£454.5 (Proof of bets published on the UK Betting Forum)
The Early Doors V15 Experiment will continue for the 3rd Quarter.
😆🔥