This is a level-stakes simulation: imagine backing every ride with the same 1-unit bet at the starting price (SP). The line is the running total — rising when winners pay more than the losers cost, falling on a losing run. It measures whether blindly following this jockey would have made money, which is a tougher and more honest test than strike rate alone.
Each ride settles as:
win → + (decimal odds − 1) · lose → − 1.
So a winner at 5/1 returns +5.0 units, a winner at 2/1 returns +2.0, and every loser costs −1.0. Fractional SPs (e.g. 9/4) are converted to decimal — 9÷4 + 1 = 3.25 — before settling.
This jockey's record 3 rides with a priced SP, staking 3 units in total → a profit of +10.0 units, an ROI of +333.3% (profit ÷ total staked).
Only rides with a recorded SP are included, so the bet count here can be lower than total rides. It assumes you take SP on every ride with no selectivity — a baseline, not a betting tip. It ignores Rule 4 deductions, dead-heats, and any each-way element; a flat or rising line is the signal worth noting.
| Trainer | Rides | W | SR |
|---|---|---|---|
| Mr Gavin van Zyl | 1 | 1 | 100.0% |
| Horse | Rides | W |
|---|---|---|
| Tulbagh Trip | 1 | 1 |
| La Sonadora | 1 | 0 |
| Knockout Johny (AUS) | 1 | 0 |
| Date | Venue | Race | Horse | Pos | Trainer | Odds |
|---|---|---|---|---|---|---|
| 20 May 2014 | Vaal | R1 — WORKRIDERS MAIDEN PLATE WELCOME TO… | Knockout Johny (AUS) | 10 | — | 12/1 |
| 17 May 2014 | Turffontein | R1 — JOAN ST. LEGER LINDBERGH TRUST WOR… | La Sonadora | 13 | — | 125/1 |
| 10 May 2014 | Turffontein | R1 — EVENTS 360 WORKRIDERS MAIDEN PLATE | Tulbagh Trip | 1 | Mr Gavin van Zyl | 12/1 |