Nicolas Alfonso

Bib: 31013M

0:00
0:00
/ mi
Masters
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Overall
#0 / 28404
Gender (Male)
#0 / 16105
Masters (Masters Men)
#0 / 10463
Division (M45-49)
#0 / 2386
Race Day Weather
50°/40°F
broken clouds

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
28:07
Rank: #22629
Start5K
9:03/mi
28:07 split
10K· 6.21 mi
55:29
Rank: #22104 (+525)
5K10K
8:49/mi
27:22 split
15K· 9.32 mi
1:22:22
Rank: #21469 (+635)
10K15K
8:39/mi
26:53 split
20K· 12.43 mi
1:49:37
Rank: #21026 (+443)
15K20K
8:46/mi
27:15 split
Half· 13.11 mi
1:55:36
Rank: #21017 (+9)
20KHalf
8:46/mi
5:59 split
25K· 15.53 mi
2:17:19
Rank: #20815 (+202)
Half25K
8:57/mi
21:43 split
30K· 18.64 mi
2:45:56
Rank: #20377 (+438)
25K30K
9:13/mi
28:37 split
20M
2:59:38
Rank: #20475 (-98)
30K20M
10:05/mi
13:42 split
21M
3:09:33
Rank: #20323 (+152)
20M21M
9:55/mi
9:55 split
35K· 21.75 mi
3:17:28
Rank: #20496 (-173)
21M35K
10:35/mi
7:55 split
23M
3:30:45
Rank: #20657 (-161)
35K23M
10:37/mi
13:17 split
24M
3:40:23
Rank: #20651 (+6)
23M24M
9:38/mi
9:38 split
40K· 24.85 mi
3:57:06
Rank: #21875 (-1224)
24M40K
19:33/mi
16:43 split
25.2M
4:00:56
Rank: #21849 (+26)
40K25.2M
11:07/mi
3:50 split
Finish· 26.22 mi
4:10:51
Rank: #21838 (+11)
25.2MFinish
9:44/mi
9:55 split

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:55:36
Pace8:49 /mi
2nd Half
Distance13.11 mi
Time2:15:15
Pace10:19 /mi
📊Positive Split: 17.0% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:52:2528:079:0328:07
9:03
-
10K
6.21 mi12:19:4755:298:5627:22
8:49
-0:14
15K
9.32 mi12:46:401:22:228:5026:53
8:39
-0:10
20K
12.43 mi13:13:551:49:378:4927:15
8:46
+0:07
Half
13.11 mi13:19:541:55:368:495:59
8:46
0:00
25K
15.53 mi13:41:372:17:198:5021:43
8:57
+0:11
30K
18.64 mi14:10:142:45:568:5428:37
9:13
+0:16
20M
20.00 mi14:23:562:59:388:5913:42
10:05
+0:52
21M
21.00 mi14:33:513:09:339:029:55
9:55
-0:10
35K
21.75 mi14:41:463:17:289:057:55
10:35
+0:40
23M
23.00 mi14:55:033:30:459:1013:17
10:37
+0:02
24M
24.00 mi15:04:413:40:239:119:38
9:38
-0:59
40K
24.85 mi15:21:243:57:069:3216:43
19:33
+9:55
25.2M
25.20 mi15:25:144:00:569:343:50
11:07
-8:26
Finish
26.22 mi15:35:094:10:519:349:55
9:44
-1:23

Checkpoints & Pacing

📈Pace Line

Pace Progression

Track your pace changes throughout the race. Dot colors mark your quickest to easiest segments, relative to your own pace.

Fastest Pace

8:39 /mi

Average Pace

9:34 /mi

Slowest Pace

19:33 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

0:00

0% of race

Time at Steady Pace

3:50:18

92% of race

Time at Slower Pace

20:33

8% of race

Average Pace: 9:34 /mi

Loading chart...
Faster pace (< avg)
Steady pace (≈ avg)
Slower pace (> avg)

🎨Heatmap

Pace Heatmap

Where you sped up and eased off relative to your own pace across the race. Colors are relative to your own range, not to other runners.

Loading...
0mi6.6mi13.1mi19.7mi26.2mi
Pace:
Faster
Steady
Slower

Click or hover over segments to see details

Sparklines

Checkpoint Splits with Pace Trends

Overall Pace Trend

CheckpointDistanceTime of DayTimeAvg PaceSegmentPaceTrendRank
5K
3.11 mi11:52:2528:079:0328:07
9:03
#22629
10K
6.21 mi12:19:4755:298:5627:22
8:49
#22104
15K
9.32 mi12:46:401:22:228:5026:53
8:39
#21469
20K
12.43 mi13:13:551:49:378:4927:15
8:46
#21026
Half
13.11 mi13:19:541:55:368:495:59
8:46
#21017
25K
15.53 mi13:41:372:17:198:5021:43
8:57
#20815
30K
18.64 mi14:10:142:45:568:5428:37
9:13
#20377
20M
20.00 mi14:23:562:59:388:5913:42
10:05
#20475
21M
21.00 mi14:33:513:09:339:029:55
9:55
#20323
35K
21.75 mi14:41:463:17:289:057:55
10:35
#20496
23M
23.00 mi14:55:033:30:459:1013:17
10:37
#20657
24M
24.00 mi15:04:413:40:239:119:38
9:38
#20651
40K
24.85 mi15:21:243:57:069:3216:43
19:33
#21875
25.2M
25.20 mi15:25:144:00:569:343:50
11:07
#21849
Finish
26.22 mi15:35:094:10:519:349:55
9:44
#21838
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM45-49Seg. OverallSeg. MalesSeg. M45-49
5K3.11 mi3.11 mi22629135911359120225(Top 71%)12611(Top 78%)12611(Top 529%)
10K6.21 mi3.10 mi22104+52513372+21913372+21921434(Top 75%)13106(Top 81%)13106(Top 549%)
15K9.32 mi3.11 mi21469+63513124+24813124+24820225(Top 71%)12611(Top 78%)12611(Top 529%)
20K12.43 mi3.11 mi21026+44312921+20312921+20319790(Top 70%)12370(Top 77%)12370(Top 518%)
Half13.11 mi0.68 mi21017+912920+112920+120754(Top 73%)12808(Top 80%)12808(Top 537%)
25K15.53 mi2.42 mi20815+20212820+10012820+10019711(Top 69%)12288(Top 76%)12288(Top 515%)
30K18.64 mi3.11 mi20377+43812575+24512575+24518684(Top 66%)11695(Top 73%)11695(Top 490%)
20M20.00 mi1.36 mi20475-9812599-2412599-2421212(Top 75%)12685(Top 79%)12685(Top 532%)
21M21.00 mi1.00 mi20323+15212508+9112508+9117976(Top 63%)11158(Top 69%)11158(Top 468%)
35K21.75 mi0.75 mi20496-17312578-7012578-7023325(Top 82%)13545(Top 84%)13545(Top 568%)
23M23.00 mi1.25 mi20657-16112630-5212630-5222289(Top 78%)13013(Top 81%)13013(Top 545%)
24M24.00 mi1.00 mi20651+612612+1812612+1820126(Top 71%)11933(Top 74%)11933(Top 500%)
40K24.85 mi0.85 mi21875-122413126-51413126-51428378(Top 100%)16087(Top 100%)16087(Top 674%)
25.2M25.20 mi0.35 mi21849+2613109+1713109+1720975(Top 74%)12283(Top 76%)12283(Top 515%)
Finish26.22 mi1.02 mi21838+1113087+2213087+2222020(Top 78%)12801(Top 79%)12801(Top 537%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 71%
×21story building
+97ft-345ft

Overall

20225

Males

12611

M45-49

12611

5K→10K

3.1 - 6.2 mi

Top 75%
×5story building
+79ft-138ft

Overall

21434

Males

13106

M45-49

13106

10K→15K

6.2 - 9.3 mi

Top 71%
×3story building
+67ft-78ft

Overall

20225

Males

12611

M45-49

12611

15K→20K

9.3 - 12.4 mi

Top 70%
×5story building
+106ft-86ft

Overall

19790

Males

12370

M45-49

12370

20K→Half

12.4 - 13.1 mi

Top 73%
×2story building
+19ft-37ft

Overall

20754

Males

12808

M45-49

12808

Half→25K

13.1 - 15.5 mi

Top 69%
×4story building
+66ft-88ft

Overall

19711

Males

12288

M45-49

12288

25K→30K

15.5 - 18.6 mi

Top 66%
×9story building
+181ft-148ft

Overall

18684

Males

11695

M45-49

11695

30K→20M

18.6 - 20.0 mi

Top 75%
×5story building
+64ft-50ft

Overall

21212

Males

12685

M45-49

12685

20M→21M

20.0 - 21.0 mi

Top 63%
×8story building
+106ft-24ft

Overall

17976

Males

11158

M45-49

11158

21M→35K

21.0 - 21.8 mi

Top 82%
×7story building
+17ft-86ft

Overall

23325

Males

13545

M45-49

13545

35K→23M

21.8 - 23.0 mi

Top 78%
×5story building
+23ft-63ft

Overall

22289

Males

13013

M45-49

13013

23M→24M

23.0 - 24.0 mi

Top 71%
×6story building
+12ft-82ft

Overall

20126

Males

11933

M45-49

11933

24M→40K

24.0 - 24.9 mi

Top 100%
×1story
+6ft-20ft

Overall

28378

Males

16087

M45-49

16087

40K→25.2M

24.9 - 25.2 mi

Top 74%
×1story
+13ft-16ft

Overall

20975

Males

12283

M45-49

12283

25.2M→Finish

25.2 - 26.2 mi

Top 78%
×2story building
+22ft-21ft

Overall

22020

Males

12801

M45-49

12801

Passing Analysis

Category:
Athletes Passed
2953
Passed By
2162
Net Change
+791
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#22629
5K10K60883+525#22629#22104
10K15K65116+635#22104#21469
15K20K46825+443#21469#21026
20KHalf3829+9#21026#21017
Half25K25351+202#21017#20815
25K30K46224+438#20815#20377
30K20M72170-98#20377#20475
20M21M17523+152#20475#20323
21M35K23196-173#20323#20496
35K23M51212-161#20496#20657
23M24M6559+6#20657#20651
24M40K11225-1224#20651#21875
40K25.2M3812+26#21875#21849
25.2MFinish4837+11#21849#21838
TOTALS29532162+791
📊

Passing Visuals

Category:
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🔄Passing Circle

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🌊Position Flow

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🏃Race Lanes

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Public Race Data

Boston Athletic Association

Boston Athletic Association

Mika Timing

Mika Timing