# Sofia Costoulas vs Marina Bassols Ribera odds comparison, 3 Nov

Compare Sofia Costoulas vs Marina Bassols Ribera odds (Colombia Cali WTA Challenger, 3 Nov, 16:00 UTC): the best price across bookmakers for the winner, totals and handicaps, with fair odds.

🎾 Tennis · [Cali WTA Challenger](https://odds.observer/tennis/colombia/cali-wta-challenger) · Starts 2026-11-03 16:00 UTC. 8 bookmakers.

Decimal odds. ↑/↓ from X: the price moved from X recently (last 6 hours). Fair odds are Pinnacle's prices with its margin removed; "vs fair" is how far the best price is above or below them.

### Winner

Best: Sofia Costoulas: **3.10** (MaxBet), Marina Bassols Ribera: **1.47** (Polymarket). Payout at best odds: 99.6%.

| Bookmaker | 1 | 2 | Margin |
|---|---:|---:|---:|
| Betclic | [2.65](https://www.betclic.com/en/sports-betting/tennis-stennis/cali-wta-challenger-c32169/sofia-costoulas-marina-bassols-ribera-m1269259297656832) ↑ from 2.60 | [1.34](https://www.betclic.com/en/sports-betting/tennis-stennis/cali-wta-challenger-c32169/sofia-costoulas-marina-bassols-ribera-m1269259297656832) ↓ from 1.36 | 12.4% |
| Fonbet | [2.85](https://fon.bet/sports/tennis/85846/69560170/) ↑ from 2.80 | [1.37](https://fon.bet/sports/tennis/85846/69560170/) ↓ from 1.38 | 8.1% |
| Leon | [2.80](https://leon179.bet/bets/tennis/wta-125k/colombia-cali-clay/1970324854168338-costoulas-sofia-bassols-ribera-marina) ↑ from 2.70 | [1.37](https://leon179.bet/bets/tennis/wta-125k/colombia-cali-clay/1970324854168338-costoulas-sofia-bassols-ribera-marina) ↓ from 1.38 | 8.7% |
| Marathonbet | [2.88](https://www.marathonbet.com/en/betting/event/tennis/wta-125-cali-colombia/s-costoulas-vs-m-bassols-ribera-32741018) ↑ from 2.84 | [1.35](https://www.marathonbet.com/en/betting/event/tennis/wta-125-cali-colombia/s-costoulas-vs-m-bassols-ribera-32741018) ↓ from 1.36 | 8.8% |
| MaxBet | [**3.10**](https://www.maxbet.rs) ↑ from 3.05 | [1.35](https://www.maxbet.rs) ↓ from 1.37 | 6.3% |
| Olimpbet | [2.86](https://www.olimp.bet) ↑ from 2.80 | [1.39](https://www.olimp.bet) ↓ from 1.40 | 6.9% |
| Polymarket (exchange, after commission) | [2.37](https://polymarket.com/event/wta-costoul-ribera-2026-11-03) | [**1.47**](https://polymarket.com/event/wta-costoul-ribera-2026-11-03) | 10.3% |
| PSK (Fortuna) | [2.85](https://www.psk.hr/oklade/tenis/wta-125/wta-cali/costoulas-s-bassols-ribera-m) ↑ from 2.75 | [1.40](https://www.psk.hr/oklade/tenis/wta-125/wta-cali/costoulas-s-bassols-ribera-m) ↓ from 1.45 | 6.5% |

### Total 19.5 (main line)

Best: Over 19.5: **1.77** (Olimpbet), Under 19.5: **1.98** (Olimpbet). Payout at best odds: 93.5%.

| Bookmaker | Over 19.5 | Under 19.5 | Margin |
|---|---:|---:|---:|
| Betclic | [1.72](https://www.betclic.com/en/sports-betting/tennis-stennis/cali-wta-challenger-c32169/sofia-costoulas-marina-bassols-ribera-m1269259297656832) ↑ from 1.69 | [1.93](https://www.betclic.com/en/sports-betting/tennis-stennis/cali-wta-challenger-c32169/sofia-costoulas-marina-bassols-ribera-m1269259297656832) ↑ from 1.89 | 10.0% |
| Olimpbet | [**1.77**](https://www.olimp.bet) ↑ from 1.76 | [**1.98**](https://www.olimp.bet) ↓ from 1.99 | 7.0% |

### Total 20.5

Best: Over 20.5: **1.95** (MaxBet), Under 20.5: **1.80** (MaxBet). Payout at best odds: 93.6%.

| Bookmaker | Over 20.5 | Under 20.5 | Margin |
|---|---:|---:|---:|
| Marathonbet | [1.89](https://www.marathonbet.com/en/betting/event/tennis/wta-125-cali-colombia/s-costoulas-vs-m-bassols-ribera-32741018) ↑ from 1.88 | [1.79](https://www.marathonbet.com/en/betting/event/tennis/wta-125-cali-colombia/s-costoulas-vs-m-bassols-ribera-32741018) ↓ from 1.80 | 8.8% |
| MaxBet | [**1.95**](https://www.maxbet.rs) ↑ from 1.90 | [**1.80**](https://www.maxbet.rs) ↓ from 1.83 | 6.8% |

### Handicap +4.5

Best: Sofia Costoulas +4.5: **1.85** (Olimpbet), Marina Bassols Ribera -4.5: **2.00** (MaxBet). Payout at best odds: 96.1%.

| Bookmaker | 1 (+4.5) | 2 (-4.5) | Margin |
|---|---:|---:|---:|
| Marathonbet | [1.78](https://www.marathonbet.com/en/betting/event/tennis/wta-125-cali-colombia/s-costoulas-vs-m-bassols-ribera-32741018) ↑ from 1.77 | [1.90](https://www.marathonbet.com/en/betting/event/tennis/wta-125-cali-colombia/s-costoulas-vs-m-bassols-ribera-32741018) ↓ from 1.92 | 8.8% |
| MaxBet | [1.75](https://www.maxbet.rs) ↑ from 1.72 | [**2.00**](https://www.maxbet.rs) ↓ from 2.05 | 7.1% |
| Olimpbet | [**1.85**](https://www.olimp.bet) ↑ from 1.82 | [1.89](https://www.olimp.bet) ↓ from 1.92 | 7.0% |


## Structured data

schema.org JSON-LD, the same as in the HTML page.

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Odds change quickly; check the bookmaker's site before betting. 18+. Source: https://odds.observer/tennis/colombia/cali-wta-challenger/sofia-costoulas-vs-marina-bassols-ribera-111543