Lewis Hamilton has a mountain to climb after falling 23 points behind Mercedes team-mate Nico Rosberg in the title race with just five races remaining. I have no idea whats going to happen in these next five races, Hamilton said. Be as focused as I can possibly be, put in performances like I have done this weekend, and pray that the car holds together.How many wins does he need?To put it simply, the only way Hamilton can guarantee sealing a fourth world title is by winning the final five Grands Prix - which would be one of the most sensational and dramatic streaks in history. How unlucky has Hamilton been?Four victories and one second-place finish would not be enough were Rosberg to triumph on the weekend his team-mate falters. In that scenario, the Brit would be stranded on 383 points, the German on 385.Weve already covered their records at the remaining circuits, with Hamilton seeming to have the edge at the next three in particular, but their 2016 form - mechanical failures and crashes aside - must also be taken into consideration.Rosberg has scored an average of 18 points this season, while his average finishing position, taking out his one retirement in Spain, is 2.4 thanks to his eight victories. Nico and Lewis in 2016, and what they require to win the 2016 world title Nico Rosberg Lewis Hamilton Points 288 265 Average points per race 18 16.5 Average finishing pos.* 2.4 2.3 Points needed to guarantee title 103 125 What would be enough? 1st, 2nd, 2nd, 2nd, 2nd 1st, 1st, 1st, 1st, 1st *excluding retirements Such consistency is incredibly unlikely in Formula 1, especially if this season is anything to go by, but were Rosberg to finish second in all of the remaining five races, he would end with a total score of 378 points. That would be much more than a Drivers Championship runner-up has ever accumulated before.And if Rosberg did in fact reach this tally, Hamilton would need at least four victories to claim a fourth world title. Even in that case, he would need a third-place finish in the final race to reach 380 points.Hamilton has a mountain to climb but the aim for the world champion must be to forget about permutations and complete the job himself by winning the next five. He does, at least, have experience of such a streak - having won from Italy to USA in 2014 - but this would be far more impressive. Sky Sports commentator Damon Hill says Lewis Hamilton can still win the F1 Drivers Championship despite being 23 points behind Nico Rosberg. Clean weekendsOf course, a season-ending winning run would be highly unlikely if Hamilton was to suffer any more mechanical glitches. Worryingly for the Brit, Mercedes could offer no explanation to why the problems only appear to be affecting him and couldnt guarantee that they wont happen again.However, one thing that team principal Toto Wolff was sure about was that Hamiltons two remaining power units, one fresh and one three races old, should mean there is no need for a second grid penalty.Still, Hamilton is understandably agitated, even offering to miss out on practice sessions to save his engines.Right now, my concern is Ive got these two engines and I want them to make sure to treat them with whatever they can to make sure they both last, he said. Lewis Hamilton struggles to understand why his Mercedes engine is the only one that fails after his engine blew whilst leading the Malaysia GP. If that means not doing a session, I will not do the session. Just let me know what Ive got to do because Ill do whatever it takes to be able to see through the races.Thats not a scenario Wolff would be comfortable with, nor would it be one Hamilton should actively pursue. His lack of Friday running in Singapore culminated in one of his sloppiest weekends of the season.Sky F1s Martin Brundle did attempt to offer some sort of an explanation for Hamiltons problems, ruling out wild conspiracy claims, installation problems and driving style. That would only leave bad luck.Whatever it is, it needs to stop from Hamiltons point of view. He has suffered five specific instances of debilitating unreliability this year and he can surely afford no more.Problems for Nico?One way Hamilton may not need the maximum 25 points in every race would be if Rosberg also suffered failures.Theres a lot of time left - some bad luck is going to come Nicos way, Damon Hill, the 1996 world champion, said on Sky Sports News HQ.But bad luck for Rosberg or not, Hamilton can still win the title with five successive wins. Such a winning streak has happened before, most notably in 2014 for the Briton, so could it happen again? Also See: Get a NOW TV Sky Sports pass Malaysia GP driver ratings Conspiracy theories are absurd Hamilton down but not out Cheap China Shoes Free Shipping Worldwide . Nick Holden scored two goals and had an assist and the Avalanche held off the Nashville Predators 5-4 Saturday night for their fourth straight victory. Cheap Shoes China Free Shipping . 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The Toronto Maple Leafs forward and Nashville Predators goaltender highlighted Mondays waiver transactions, with Calgarys Chuck Kobasew and Edmontons Philip Larsen also being placed on waivers.Doha, Qatar (SportsNetwork.com) - Branden Grace picked up five strokes over the final seven holes on Saturday and fended off Marc Warren to win the Qatar Masters. Grace fired a bogey-free, 6-under 66 to end at 19-under-par 269. The South African, who won for the sixth time on the European Tour, raised his record to 6-0 when owning at least a piece of the 54-hole lead. It was a great day, it was a great week. Its another great trophy to put in the cupboard, Grace said. I got off to great start today, then I fell a bit asleep. Warren closed with a his second straight 67 to end one back at minus-18. He had shared the third-round lead with Grace, Bernd Wiesberger and Emiliano Grillo. Wiesberger posted a 4-under 68 and ended alone in third at 17-under-par 271, while Eddie Pepperell (67) took fourth at minus-16. Grillo managed a 2-under 70 in the final round at Doha Golf Club and finished at 15-under 273. He was joined there by Byeong-hun An and Gregory Bourdy, who both fired 65s in the final round. Alejandro Canizares (69) took eighth at minus-14 and Alexander Noren (65) was one stroke further back at 13-under 275. Grace birdied the first, but followed that with 10 consecutive pars. In that span, he varied from one behind to tied for the lead. Late in Graces run of pars, there was a brief seven-way tie for the lead at minus-14. Wiesberger, who was paired with Grace in the final round, dropped in three straight birdies froom the 10th to break free from that pack and move to 16-under.dddddddddddd Grace matched Wiesbergers birdie at the 12th. Wiesberger ran off five pars in a row from No. 13 to stay at minus-16. After a par on 13, Grace grabbed a share of the lead as he birdied the 14th. At the short par-4 16th, Graces drive stopped five feet from the hole. The South African poured that in for eagle. Now two clear of the field, Grace parred the 17th and that allowed Warren to join him at minus-18 as Warren birdied the 16th and 17th. Grace answered at the par-5 closing hole. His third shot rolled over the left edge of the hole and stopped three feet from the cup. He kicked that in for a closing birdie and 19-under. The form has been there, and I stuck to my routine this week and I played great, and I managed to come out on top, said Grace. Warren, who was in the final group, had a 25-foot putt to force a playoff, but it stayed above ground. NOTES: Grace earned 353,257 euros for the win ... Grace won in December at the Alfred Dunhill Championship and has won two of the last four European Tour events ... Henrik Stenson, the 2006 champion, fired a 66 to finish tied for 13th, while Justin Rose carded a 68 to end alongside Stenson at minus-10 ... Last years winner Sergio Garcia closed with a 3-under 69 and ended in a tie for 46th ... Stephen Gallacher is expected to defend his title next week at the Omega Dubai Desert Classic. ' ' '