The ATP Second Round serves up a Sunday arvo contrast — well, technically a 4:05 am AEST start for the early risers — when Belgium's Alexander Blockx (ranked 32) meets Argentina's Mariano Navone (44) in what shapes as a crossroads match for both. Blockx's season sits at 15–9, a respectable ledger that masks some recent turbulence, while Navone's 21–18 record includes a title and a career-high ranking of 29 earlier this year.
The pair have never met on tour, so the h2h ledger is blank. That makes recent form the only reliable compass, and the two punters have been travelling in opposite directions. Blockx is coming off a loss to Jiri Lehecka (3, 4–6, 6) on Friday, 7 August — his second straight defeat after a narrow five-setter against Luca Van Assche. Navone, by contrast, rolled through Raphael Collignon in straight sets (6, 7–3, 6) on Friday, 14 August, his most recent start, and carries that momentum into Sunday morning's contest.
Who will win?
Blockx's last five reads two wins, three losses — the wins a walkover and a gutsy five-set triumph over Luciano Darderi (5, 7, 7–7, 6, 6). The losses tell a different story: tight three-setters where he couldn't quite close. His career win rate of 53 per cent suggests he's still finding his feet at this level, though the climb to a career-best 32 is no accident.
Navone's last five paints a more volatile picture: three wins (including straight-sets romps over Berrettini and Collignon) and two losses, both against Arthur Fils. The Argentine's 47 per cent career win rate is lower than Blockx's, but his season win percentage of 54 per cent edges ahead of the Belgian's 63 per cent when you account for the larger sample — Navone's played 39 matches this year to Blockx's 24. The title he claimed earlier in the season proves he can string together form when the narrative clicks.
The head-to-head market has Blockx at shorter odds, but the recent form split is undeniable. Navone's last-start win was clinical; Blockx's last outing ended in a three-set fade. For punters chasing our tennis betting tips, that momentum gap is the yarn here — one lad is riding a confidence wave, the other searching for answers after consecutive defeats. Navone's ability to reset after losses (he bounced back twice in his last five) gives him the edge in a match where belief might matter as much as ball-striking.
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Head-to-head context
0–0
Alexander Blockx vs Mariano Navone
Set Handicap: Can Navone cover the spread?
The Set Handicap sits at +/– 1.5 sets, with Blockx laying the start and Navone getting the cushion. The market is pricing Blockx as the marginal favourite to win, but the handicap flips the script — backing Navone +1.5 covers if he wins outright or loses in three tight sets.
Blockx's last five includes only one match that went the distance (the Darderi win), and his recent losses were both straight three-setters where he couldn't force a decider. Navone, meanwhile, has shown he can grind: his win over Vacherot was a five-set marathon (1, 6, 6–6, 3, 3), and the Berrettini scalp went the distance too (6, 6, 6–3, 7, 3). That staying power suggests he won't fold quietly if Blockx gets an early break.
The case for Navone +1.5 leans on his recent momentum and his track record of pushing matches deep. If he can take a set off Blockx — or win outright — the handicap lands comfortably.
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Set handicap (±1.5) form
−1.5 cover = won by two or more sets. Charts use recent completed scorelines.
Alexander Blockxlast 4
Mariano Navonelast 5
Total Games: A tight contest or a quick finish?
The Total Games line is set at 23.5, which suggests the market expects a competitive contest — likely two tight sets or a three-setter with at least one blowout frame. Looking at recent matches, Blockx's last five includes some high-game tallies (the Darderi match featured multiple tiebreaks and five sets; the Van Assche loss was another five-set epic). Navone's recent form also points to variance: the Collignon win was brisk (straight sets with a tiebreak in the second), but the Vacherot and Berrettini wins both went five.
If both players hold serve well early and trade breaks, the over starts to look appealing. But if Navone's confidence translates into clean hitting and Blockx can't settle after his recent losses, a quicker finish — two sets under 24 games — is plausible. The split in their recent form doesn't scream marathon; it suggests one punter might impose himself early and keep rolling.
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Match total games
Average games from recent scorelines · marker shows live line 22.5.
Hit rate vs 22.5
The yarn
This one boils down to timing. Blockx is the higher-ranked player, the younger talent (21 versus Navone's 25), and on paper the favourite. But form lines don't lie, and the Belgian's back-to-back losses — both tight, both losses where he couldn't grab the decisive edge — suggest a lad still searching for his best tennis. Navone, for all his career inconsistencies, arrives with a straight-sets win under his belt and the kind of belief that comes from dismantling an opponent in quick time.
The betting landscape reflects the tension: Blockx is favourite, but not by much. For punters looking for a story to back, Navone's momentum and his proven ability to dig deep in matches that stretch make him the more appealing play — both outright and on the handicap. Whether the total sails over or sneaks under will likely hinge on how quickly one player can seize control. If Blockx rediscovers his groove, this could be a grinding three-setter. If Navone keeps rolling, the under might be the smarter look.