J G Portman
J G Portman is a horse trainer based in Upper Lambourn, Berks, specialising in Flat racing. From 5090 career runners, he has saddled 441 winners, at a 8.7% strike rate. He has earned £4.5M in prize money. He currently has 520 horses in his stable. His strongest record is at Chester (2w from 5r).
Career Statistics
Win Rate
8.7%
Total Wins
441
Total Runs
5,090
Active Horses
520
Prize Money
£4.5M
Recent Form
Season Performance
Win Rate % · Prize Money (£k) · Runs
- Runs
- Prize £k
- Win Rate %
Recent Results
Last 20 runners| Date | Horse | Course | Race | Pos | Jockey | SP | Prize £ |
|---|---|---|---|---|---|---|---|
| 07 Oct | Russian Rumour (IRE) | Nottingham | Racedays For £9 At Nottingham Racecourse Fillies' Handicap Stakes (gbbplus Race) | 7 | Donagh Murphy | 28/1 | £0 |
| 04 Oct | Rumstar (GB) | Longchamp (FR) | Prix de l'Abbaye de Longchamp Longines (Group 1) | 10 | Rob Hornby | 9/1 | £0 |
| 23 Sept | Two Tempting (IRE) | Goodwood | Heineken Handicap Stakes | 5 | Rob Hornby | 20/1 | £765 |
| 18 Sept | Sweet Reward (IRE) | Newbury | Fitzdares Handicap Stakes (Div II) (GBBPlus Race) | 8 | Olivia Tubb | 11/1 | £0 |
| 13 Sept | Rumstar (GB) | Curragh (IRE) | BAR 1 Betting Flying Five Stakes (Group 1) | 3 | Rob Hornby | 10/1 | £40k |
| 05 Sept | Two Tempting (IRE) | Kempton (AW) | William Hill London Mile Series Final Handicap Stakes (Series Final - Qualified Horses Only) | 10 | Rob Hornby | 15/2 | £0 |
| 31 Aug | Sweet Reward (IRE) | Epsom | Betfred 'nifty 50' Amateurs' Derby Handicap Stakes (for Gentleman Amateur Jockeys) (gbbplus Race) | 8 | Mr James Hills | 50/1 | £0 |
| 29 Aug | Russian Rumour (IRE) | Goodwood | Virgin Bet Daily Price Boosts Handicap Stakes (gbbplus Race) | 3 | Olivia Tubb | 25/1 | £1.9k |
| 22 Aug | Two Tempting (IRE) | Chester | Virgin Bet Supports Safe Gambling Handicap Stakes | 4 | Rob Hornby | 22/1 | £3.6k |
| 22 Aug | Bulletin (IRE) | Newmarket (July) | Blackwell Earthmoving 70th Anniversary Handicap Stakes (GBBPlus Race) | 5 | David Probert | 3/1 | £604 |
| 21 Aug | Rumstar (GB) | York | Coolmore City Of Troy Nunthorpe Stakes (Group 1) | 3 | Rob Hornby | 22/1 | £64.6k |
| 12 Aug | Bulletin (IRE) | Kempton | Unibet More Extra Place Races Handicap Stakes (gbbplus Race) | 2 | Harry Davies | 3/1 | £3.9k |
| 04 Aug | Russian Rumour (IRE) | Lingfield | Trusted Betting Site Comparison gambling.com Handicap Stakes (gbbplus Race) | 3 | Olivia Tubb | 10/1 | £1.3k |
| 01 Aug | Sweet Reward (IRE) | Goodwood | Coral Rewards Shaker Handicap Stakes | 11 | Rob Hornby | 40/1 | £0 |
| 31 Jul | Two Tempting (IRE) | Goodwood | Coral Golden Mile (Class 2 Heritage Handicap) | 17 | Rob Hornby | 50/1 | £0 |
| 31 Jul | Rumstar (GB) | Goodwood | King George Qatar Stakes (Group 2) | 2 | Rob Hornby | 6/1 | £64.5k |
| 04 Jul | Rumstar (GB) | Sandown | Coral Charge (Group 3) (Registered As The Sprint Stakes) | 1 | Rob Hornby | 100/30 | £53.9k |
| 02 Jul | Bulletin (IRE) | Kempton | Unibet 40,000+ Live Streamed Events Handicap (GBBPlus Race) | 4 | Rob Hornby | 3/1 | £966 |
| 23 Jun | Russian Rumour (IRE) | Newbury | Pump Technology Performance Under Pressure Handicap (GBBPlus Race) | 3 | Olivia Tubb | 17/2 | £1.7k |
| 16 Jun | Rumstar (GB) | Ascot | King Charles III Stakes (Group 1) | 25 | Rob Hornby | 25/1 | £0 |
Strike Rate by Course & Distance
Win % by course (rows) and distance band (columns). Min 1 run to show a cell.
| Course | 5f | 6f | 7f | 1m | 1m2f | 1m4f+ |
|---|---|---|---|---|---|---|
| Newbury | 60% | 11% | 0% | 11% | 11% | 6% |
| Goodwood | 0% | 21% | 11% | 0% | 23% | 14% |
| Windsor | 60% | 22% | — | 13% | 6% | 6% |
| Sandown | 36% | — | 0% | 10% | 10% | 13% |
| Kempton (AW) | 50% | 0% | 11% | 16% | 0% | 6% |
| Ascot | 29% | 7% | 0% | 13% | — | 0% |
| Chepstow | — | 50% | 0% | 0% | 0% | 13% |
| Salisbury | 0% | 30% | 0% | 0% | 14% | 6% |
Going Performance
Based on the 1117 most recent results stored in our database for this trainer.
Distance Performance
Based on the 1117 most recent results stored in our database for this trainer.
Course Specialists
Where this trainer wins most often (minimum 3 runners at a track).
Class Performance
Win rates by race class (1–7).
Seasonality
Monthly win rate across stored results.
Jockey Partnerships
Most successful retained jockeys (minimum 3 rides).
Owner Partnerships
Top owners sending horses to this trainer (minimum 2 runners).
Surface Split
Turf vs All-Weather strike rates.
Turf
Runs
968
Wins
128
Win Rate
13%
AW
Runs
149
Wins
17
Win Rate
11%
Flat vs Jumps
Separate stats for each racing code.
Runs
902
Wins
127
Win %
14%
Place %
39%
Runs
215
Wins
18
Win %
8%
Place %
33%
Top Horses
Star horses ranked by career wins, then total prize money earned.
Biggest Wins
Most valuable victories from stored results.
Weatherbys Super Sprint
Mrs Danvers (GB) · Newbury · 16 Jul 2016
Coral Charge (Group 3) (Registered As The Sprint Stakes)
Rumstar (GB) · Sandown · 4 Jul 2026
LiveScore Bet Handicap
Two Tempting (IRE) · Chester · 31 Aug 2024
Listen To BetMGM On talkSPORT Handicap
Two Tempting (IRE) · Sandown · 15 Jun 2024
Coral Charge (Group 3) (Registered As The Sprint Stakes)
Rumstar (GB) · Sandown · 5 Jul 2025
Hong Kong Jockey Club World Pool Palace House Stakes (Group 3)
Rumstar (GB) · Newmarket · 3 May 2025
Newmarket Academy Godolphin Beacon Project Cornwallis Stakes (Group 3)
Mrs Danvers (GB) · Newmarket · 7 Oct 2016
Dubai Cornwallis Stakes (Group 3)
Royal Razalma (IRE) · Newmarket · 17 Oct 2014
Trustatrader Handicap
Two Tempting (IRE) · Epsom · 31 May 2024
Newmarket Academy Godolphin Beacon Project Cornwallis Stakes (Group 3)
Rumstar (GB) · Newmarket · 7 Oct 2022
Market Performance
Starting prices of winners — average, extremes, and distribution.
Avg Winner SP
8.6/1
Shortest Winner
1.7/1
Biggest Winner
66/1
Winner SP Distribution
Age Performance
Win rates by horse age, based on the current stable roster.
Active Stable Roster — Top 50 by rating
Discussion
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